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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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The vehicle (where a record says)

A record is under an engine, a drive or a series only where it says so: the characters of the vehicle identification number filed with a complaint, its text, or what its document says it applies to. A record that does not say is kept as "not stated". The filed numbers and the documents do not tell 4WD from AWD.

Common on this vehicle:Warning lightLeakNoiseVibration or shudderMisfire or rough idleGauge or instrument faultAir conditioning or heaterCorrosion or rust

Record by record

60 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

Symptom

Component named as the cause

Work done

A ribbon is as wide as the records that state both of its ends (only the commonest are drawn). A record that names several symptoms or components runs through each. Orange is records that say the fault came back or was not fixed. Results come from owners’ reports only; one that does not say is “result not stated”. None of this is a likelihood of a cause or a rate at which work succeeds.

Read the records one by one (18)

Known issuesHydro-boost brake assist and power steering share one hydraulic supply (four campaigns)2

  1. Recall2006 GMC YUKON ・ 2005-05-10

    Power Steering Hose Fracture

    1. 1Fault

      • Under extreme steering maneuvers, such as turning the steering wheel fully left or right while braking, the hose may fracture and leak fluid; power steering assist would be lost and steering effort would increase.
      • On vehicles with hydro-boost power brakes it could also result in loss of power brake assist and increased braking effort; if the fluid sprays onto hot engine parts, an engine compartment fire could occur.
      • With the Hydroboost braking system, braking assist will be limited to the reserve power assist system; the braking systems on vehicles without Hydroboost are unaffected.

    2. 2Finding the cause

      Possible causes

      • The high pressure power-steering hose was manufactured with an incorrect compound, making it susceptible to high pressure failure at the elevated fluid temperatures and pressures that can occur during simultaneous braking and steering inputs.

      Steps to confirm (in the document’s order)

      1. Inspect and record the date code on the power steering pressure line; it is printed on the hose and repeated approximately every 6 inches (150 mm).
      2. Vehicles with the hydro-boost system have two hoses to inspect, others only one; the conduit may have to be removed to read the date code.
      3. The suspect date codes are 07135F-2 and 07145F-2; if the hose carries one of them, it must be replaced.

    3. 3Correction

      Repair

      1. If the date code is not one of the listed codes, replace the conduit if applicable; no further action is required.
      2. For Silverado/Tahoe/Sierra/Yukon/Escalade, hose replacement follows SI documents 756552 (Non Hydro-Boost Pressure line), 651043 (Power Steering Pump to Hydro-Boost Pressure line) and 651019 (Hydro-Boost to Steering Gear Pressure Line).

      Parts

      • Less than 10% of the involved vehicles will require hose replacement; if parts are required, the appropriate hose(s) are ordered from GMSPO.

      Caution

      • This bulletin is a revision to address hoses used to service 1991-2006 vehicles; dealers who ordered these hoses for service are identified in the attachment to the administrative message.
      • Vehicle eligibility should be confirmed through GMVIS before beginning recall repairs; not all vehicles within the breakpoints may be involved.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to certain 2005 Chevrolet Corvette, Silverado and GMC Sierra, and 2006 Buick Rainier, Cadillac Escalade, Chevrolet Corvette, Express, Silverado, Tahoe, TrailBlazer, TrailBlazer EXT, GMC Envoy, Envoy XL, Savana, Sierra, Yukon and HUMMER H2.
    • Applies to：For the 2006 GMC Yukon the VIN breakpoints are 6R104469 through 6R120468.
    • Applies to：Some of the affected hoses were shipped to dealers by GMSPO between July 25, 2005 and August 24, 2005 and could have been used to service 1991-2006 vehicles.
    • Cause：The high pressure power-steering hose was manufactured with an incorrect compound, making it susceptible to high pressure failure at the elevated fluid temperatures and pressures that can occur during simultaneous braking and steering inputs.
    • Condition：Under extreme steering maneuvers, such as turning the steering wheel fully left or right while braking, the hose may fracture and leak fluid; power steering assist would be lost and steering effort would increase.
    • Condition：On vehicles with hydro-boost power brakes it could also result in loss of power brake assist and increased braking effort; if the fluid sprays onto hot engine parts, an engine compartment fire could occur.
    • Condition：With the Hydroboost braking system, braking assist will be limited to the reserve power assist system; the braking systems on vehicles without Hydroboost are unaffected.
    • Confirm：Inspect and record the date code on the power steering pressure line; it is printed on the hose and repeated approximately every 6 inches (150 mm).
    • Confirm：Vehicles with the hydro-boost system have two hoses to inspect, others only one; the conduit may have to be removed to read the date code.
    • Confirm：The suspect date codes are 07135F-2 and 07145F-2; if the hose carries one of them, it must be replaced.
    • Repair：If the date code is not one of the listed codes, replace the conduit if applicable; no further action is required.
    • Repair：For Silverado/Tahoe/Sierra/Yukon/Escalade, hose replacement follows SI documents 756552 (Non Hydro-Boost Pressure line), 651043 (Power Steering Pump to Hydro-Boost Pressure line) and 651019 (Hydro-Boost to Steering Gear Pressure Line).
    • Parts：Less than 10% of the involved vehicles will require hose replacement; if parts are required, the appropriate hose(s) are ordered from GMSPO.
    • Caution：This bulletin is a revision to address hoses used to service 1991-2006 vehicles; dealers who ordered these hoses for service are identified in the attachment to the administrative message.
    • Caution：Vehicle eligibility should be confirmed through GMVIS before beginning recall repairs; not all vehicles within the breakpoints may be involved.
    Cause
    CERTAIN PASSENGER VEHICLES MAY HAVE BEEN BUILT WITH A POWER STEERING HOSE THAT IS NOT TO SPECIFICATION. UNDER EXTREME STEERING MANEUVERS, SUCH AS TURNING THE STEERING WHEEL FULLY TO THE LEFT OR RIGHT WHILE BRAKING, THE HOSE MAY FRACTURE AND LEAK FLUID.
    Remedy
    DEALERS WILL INSPECT THE POWER STEERING HOSE(S) FOR TWO SUSPECT DATE CODES AND REPLACE THEM IF REQUIRED. THE RECALL WILL BEGIN ON OCTOBER 14, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, BUICK AT 1-866-608-8080, CADILLAC AT 1-866-982-2339, ISUZU AT 1-800-255-6727, OR HUMMER AT 1-800-732-5493.
    Consequence
    IF THIS WERE TO OCCUR, POWER STEERING ASSIST WOULD BE LOST AND INCREASED STEERING EFFORT WOULD BE REQUIRED. ON VEHICLES EQUIPPED WITH HYDRO-BOOST POWER BRAKES, IT COULD ALSO RESULT IN LOSS OF POWER BRAKE ASSIST AND INCREASED BRAKING EFFORT WOULD BE REQUIRED. IF THE POWER STEERING FLUID SPRAY WERE TO SPRAY ONTO HOT ENGINE PARTS, AN ENGINE COMPARTMENT FIRE COULD OCCUR.

  2. Recall2006 GMC YUKON ・ 2005-10-07

    Power steering hose fracture risk recall

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

      What the documents say to do

      Hydro-boost brake assist and power steering share one hydraulic supply (four campaigns)

      Confirm

      • Perform the "Power Steering System Test" found in SI and make any necessary repairs based on system diagnosis.

      Repair

      1. Dealers replace the hydro-boost relief valve.
      2. Dealers test the hydro-boost assembly for functional operation and replace it if it fails.

      Caution

      • An inoperative pump raises steering and braking effort but does not completely remove the ability to steer or slow the vehicle.
    Read the sentences of the record
    Cause
    Certain vehicles may have been built with a power steering hose that is not to specification. Under extreme steering manoeuvres, such as turning the steering wheel fully to the left or right while braking, the hose may fracture and leak fluid. If this were to occur, power steering assist would be lost and increased steering effort would be required. On vehicles equipped with hydro-boost power brakes, it could also result in loss of power brake assist and increase braking effort would be required. If power steering fluid were to spray onto hot engine parts, an engine compartment fire could occur. Correction: Dealers will inspect the power steering hose(s) for two suspect date codes and replace them if required.

Known issuesCastech cylinder head porosity crack (gradual coolant loss)1

  1. Manufacturer communication2001–2006 GMC YUKON DENALI ・ 2024-03-19

    Internal Coolant Leak from Cylinder Head Location

    1. 1Fault

      • Some vehicles may experience a gradual coolant loss over time.

    2. 2Finding the cause

      Possible causes

      • A very low percentage of cylinder heads manufactured with an embossed Castech logo may develop a porosity crack in a very specific area.

      Steps to confirm (in the document’s order)

      1. Check whether the head is a Castech casting by looking for the casting logo on top of the intake port, under the rocker arm support rail and in the spring deck cavity portion of the cylinder head.
      2. If the head is a Castech casting, inspect the area around the five oil drain holes for witness marks indicating coolant seepage over time.
      3. The crack can be in any of the five cylinder head oil drains and shows as a clean or shiny area on an otherwise stained surface.
      4. Pressurizing the cooling system at this time may reveal coolant, air, or a combination weeping in the described area.

    3. 3Correction

      Repair

      • If inspection reveals evidence of coolant witness marks, replace the entire cylinder head assembly.

      Caution

      • If the cylinder heads are not a Castech casting, follow normal diagnostic procedures in SI to determine the cause of the coolant loss.
      • If no evidence of coolant loss is found on inspection of Castech casting cylinder heads, follow normal diagnostic procedures in SI to determine the cause of the coolant loss.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2001-2006 GMC Envoy, Jimmy, Sierra and Yukon models, among other listed GM models, with the 4.8L, 5.3L or 5.7L VORTEC GEN III, GEN IV V8 engine.
    • Condition：Some vehicles may experience a gradual coolant loss over time.
    • Cause：A very low percentage of cylinder heads manufactured with an embossed Castech logo may develop a porosity crack in a very specific area.
    • Confirm：Check whether the head is a Castech casting by looking for the casting logo on top of the intake port, under the rocker arm support rail and in the spring deck cavity portion of the cylinder head.
    • Confirm：If the head is a Castech casting, inspect the area around the five oil drain holes for witness marks indicating coolant seepage over time.
    • Confirm：The crack can be in any of the five cylinder head oil drains and shows as a clean or shiny area on an otherwise stained surface.
    • Confirm：Pressurizing the cooling system at this time may reveal coolant, air, or a combination weeping in the described area.
    • Repair：If inspection reveals evidence of coolant witness marks, replace the entire cylinder head assembly.
    • Caution：If the cylinder heads are not a Castech casting, follow normal diagnostic procedures in SI to determine the cause of the coolant loss.
    • Caution：If no evidence of coolant loss is found on inspection of Castech casting cylinder heads, follow normal diagnostic procedures in SI to determine the cause of the coolant loss.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This bulletin advises the technician of possible location of an internal coolant leak from a specific cylinder head and location.

Known issuesSingle-cylinder misfire (P0300-P0308) and/or chirp, squeak or tick at camshaft speed: worn cam lobe / lifter, valve or valve spring1

  1. Manufacturer communication2002–2006 GMC YUKON DENALI ・ 2018-11-13(1 earlier editions of this document folded here)

    Service Engine Soon Lamp, Misfire, Engine Noise Diagnostic Information

    1. 1Fault

      • Customers may complain of an SES light, engine misfire, and/or engine noise.
      • If the SES light is on, there will be a P0300-P0308 DTC with misfires counting on a single cylinder, which may or may not be felt.
      • A verified noise is not eliminated by canceling fuel injectors and occurs at camshaft speed (half of crankshaft speed).

    2. 2Finding the cause

      Possible causes

      • If SI diagnosis does not isolate the cause, it may be a worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, or a collapsed AFM (Active Fuel Management) lifter.

      Steps to confirm (in the document’s order)

      1. During the noise, press with a wooden hammer handle on the rocker arms at the valve side, push rod side, and side of the rocker to find which one is making noise.
      2. If pressure on the valve side of the rocker changes the noise, it is most likely a lifter and/or cam lobe concern on that cylinder.
      3. Measure the cam lobe lift at the push rod side of the rocker arm.
      4. A good indicator of a sticking valve is engine misfires that continue to count on an aggressive deceleration with engine braking.
      5. Release the air pressure from the cylinder and work the valve up and down in the guide while turning it 360 degrees; if any binding is felt, a stem to guide clearance concern exists.
      1 more points

    3. 3Correction

      Repair

      1. If a worn camshaft lobe or lifter roller is found, follow SI procedures to replace the camshaft and all lifters.
      2. Also replace the plastic lifter guide for the lifter that had the damaged cam lobe and/or lifter roller.
      3. Refer to the latest version of PIP4753 for decarboning instructions.
      4. If a broken valve spring is found, replace the broken valve spring as necessary.

      Caution

      • If an AFM lifter concern is suspected, refer to the latest version of PIP4568 for additional information.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to GMC Yukon models, 2002 - 2018, with a V8 engine.
    • Condition：Customers may complain of an SES light, engine misfire, and/or engine noise.
    • Condition：If the SES light is on, there will be a P0300-P0308 DTC with misfires counting on a single cylinder, which may or may not be felt.
    • Condition：A verified noise is not eliminated by canceling fuel injectors and occurs at camshaft speed (half of crankshaft speed).
    • Cause：If SI diagnosis does not isolate the cause, it may be a worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, or a collapsed AFM (Active Fuel Management) lifter.
    • Confirm：During the noise, press with a wooden hammer handle on the rocker arms at the valve side, push rod side, and side of the rocker to find which one is making noise.
    • Confirm：If pressure on the valve side of the rocker changes the noise, it is most likely a lifter and/or cam lobe concern on that cylinder.
    • Confirm：Measure the cam lobe lift at the push rod side of the rocker arm.
    • Repair：If a worn camshaft lobe or lifter roller is found, follow SI procedures to replace the camshaft and all lifters.
    • Repair：Also replace the plastic lifter guide for the lifter that had the damaged cam lobe and/or lifter roller.
    • Confirm：A good indicator of a sticking valve is engine misfires that continue to count on an aggressive deceleration with engine braking.
    • Confirm：Release the air pressure from the cylinder and work the valve up and down in the guide while turning it 360 degrees; if any binding is felt, a stem to guide clearance concern exists.
    • Repair：Refer to the latest version of PIP4753 for decarboning instructions.
    • Confirm：Typically, the Cylinder Leakage Test outlined in SI should isolate valve leakage.
    • Repair：If a broken valve spring is found, replace the broken valve spring as necessary.
    • Caution：If an AFM lifter concern is suspected, refer to the latest version of PIP4568 for additional information.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300-P0308. If published Service Information diagnostics does not isolate the cause of this concern technician should check for a worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, and a collapsed active fuel management lifter.

Known issuesOil leak after cold start from frozen PCV system (rear main seal)1

  1. Manufacturer communication2002–2006 GMC YUKON DENALI ・ 2018-02-21

    Oil Leak at Cold Start in Extreme Low Ambient Temperatures

    1. 1Fault

      • An oil leak may appear shortly after a cold start in extremely low ambient temperatures (approximately below 10*F) or with excessive short trip drive cycles.

    2. 2Finding the cause

      Possible causes

      • An oil leak from the rear main seal is the result of a frozen PCV system and excessive crankcase pressure.

    3. 3Correction

      Repair

      1. Clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430 (vented oil fill cap) to prevent a reoccurrence.
      2. For warranty repairs, labor operation 4065230 is Oil Filler Cap Replacement.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      Parts

      • Oil fill cap part number 12589430 (vented oil fill cap).

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to GMC Yukon models, 2002 - 2014, with a V8 engine.
    • Condition：An oil leak may appear shortly after a cold start in extremely low ambient temperatures (approximately below 10*F) or with excessive short trip drive cycles.
    • Cause：An oil leak from the rear main seal is the result of a frozen PCV system and excessive crankcase pressure.
    • Repair：Clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430 (vented oil fill cap) to prevent a reoccurrence.
    • Parts：Oil fill cap part number 12589430 (vented oil fill cap).
    • Repair：For warranty repairs, labor operation 4065230 is Oil Filler Cap Replacement.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communication provides information to the technician about vehicles that have an oil leak shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430.

ENGINE AND ENGINE COOLING4

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2023-04-12(4 earlier editions of this document folded here)

    ACDelco Spin-On Oil Filter Torque Specification Notification

    1. 1Fault

      • An oil leak from underneath the front of the vehicle after an earlier oil service; the leak can take several thousand miles to appear.

    2. 2Finding the cause

      Possible causes

      • The oil may be leaking from between the oil filter gasket and the mounting surface.

      Steps to confirm (in the document’s order)

      • The filter may be very easy to remove, sometimes by hand.

    3. 3Correction

      Repair

      1. Lubricate the new oil filter gasket with clean engine oil.
      2. Install the oil filter 1 full turn after the gasket contacts the sealing surface on the filter mounting flange.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to all passenger cars and trucks, model years 2000 to 2024.
    • Condition：An oil leak from underneath the front of the vehicle after an earlier oil service; the leak can take several thousand miles to appear.
    • Cause：The oil may be leaking from between the oil filter gasket and the mounting surface.
    • Confirm：The filter may be very easy to remove, sometimes by hand.
    • Repair：Lubricate the new oil filter gasket with clean engine oil.
    • Repair：Install the oil filter 1 full turn after the gasket contacts the sealing surface on the filter mounting flange.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.

  2. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2023-01-06(2 earlier editions of this document folded here)

    EVAP Leak Diagnostic Service Bulletin (DTCs P0442/P0455)

    1. 1Fault

      • The MIL is illuminated, and DTC P0442 (EVAP small leak detected) and/or P0455 (EVAP large leak detected) may be set in the ECM.

    2. 2Finding the cause

      Possible causes

      • P0455 sets because of a large leak or a purge blockage: an unseated tube connection, a damaged tube, a canister vent valve stuck open, or a purge valve stuck closed.
      • P0442 sets because of a small leak, which can come from a purge valve stuck open or a canister vent valve stuck open.

      Steps to confirm (in the document’s order)

      1. Inspect every purge connection for proper installation, and look along the lines for damage or wear; if damage is seen, confirm it with the smoke test.
      2. Some leaks show only under pressure and some only under vacuum, so check both ways; cycling the purge and vent solenoids with GDS2 while inspecting may show a sticking valve.
      3. Critical connections to check include: purge tube to purge valve (at the intake manifold), purge tube to chassis EVAP line (rear of the engine, near the transmission), chassis EVAP line to canister, and fuel tank load line to canister.
      4. Also check the vent valve line at the vent valve, the fuel tank load line jumper connection near the fuel tank, and that the fuel tank cap is closed properly.
      5. If all connections are good, check the vent valve for a stuck-open position; if the vent valve works correctly, go on to the purge valve.
      1 more points

    3. 3Correction

      Parts

      • No parts are required for this repair.

      Caution

      • For diagnostic instructions, DTC information and required tools, always follow the service information document for the vehicle and DTC being worked on.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：This bulletin only applies to vehicles with gasoline engines.
    • Condition：The MIL is illuminated, and DTC P0442 (EVAP small leak detected) and/or P0455 (EVAP large leak detected) may be set in the ECM.
    • Cause：P0455 sets because of a large leak or a purge blockage: an unseated tube connection, a damaged tube, a canister vent valve stuck open, or a purge valve stuck closed.
    • Cause：P0442 sets because of a small leak, which can come from a purge valve stuck open or a canister vent valve stuck open.
    • Confirm：Inspect every purge connection for proper installation, and look along the lines for damage or wear; if damage is seen, confirm it with the smoke test.
    • Confirm：Some leaks show only under pressure and some only under vacuum, so check both ways; cycling the purge and vent solenoids with GDS2 while inspecting may show a sticking valve.
    • Confirm：Critical connections to check include: purge tube to purge valve (at the intake manifold), purge tube to chassis EVAP line (rear of the engine, near the transmission), chassis EVAP line to canister, and fuel tank load line to canister.
    • Confirm：Also check the vent valve line at the vent valve, the fuel tank load line jumper connection near the fuel tank, and that the fuel tank cap is closed properly.
    • Confirm：If all connections are good, check the vent valve for a stuck-open position; if the vent valve works correctly, go on to the purge valve.
    • Confirm：Work in this order: EVAP lines properly installed and fully seated; damage on the EVAP lines; vent valve malfunction; purge valve malfunction.
    • Parts：No parts are required for this repair.
    • Caution：For diagnostic instructions, DTC information and required tools, always follow the service information document for the vehicle and DTC being worked on.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

  3. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2022-09-07

    MIL Illuminated with Fuel Trim and Oxygen Sensor Codes

    1. 1Fault

      • Customers may comment that the MIL is illuminated.
      • Initial diagnosis may show fuel trim and O2 sensor related codes including P0101, P0137, P0138, P0140, P0141, P0157, P0158, P0160 and P0161.
      • The listed codes also include P0171, P0174, P0420, P0430, P1174 and P1175.

    2. 2Finding the cause

      Possible causes

      • These methods find small leaks around the O2 sensor embossments and slight cracks in an intake plenum or gasket.

      Steps to confirm (in the document’s order)

      1. If normal SI diagnostics do not lead to a resolution and an intake vacuum leak or exhaust leak is suspected, use the GE-52250 Variable Pressure Leak Detector (preferred), the J-41416 ultrasonic leak tester, or possibly soapy water with low pressure air into the tailpipe to find the leak.
      2. For an intake leak, introduce the smoke into the brake booster hose or the oil dipstick tube; soapy water can be sprayed near the gasket, seams and all vacuum nipples.
      3. For an exhaust leak, put the hose with smoke or air into the tailpipe sealed with shop towels, then spray soapy water around seals, seams and bosses.

    3. 3Correction

      Parts

      • No parts are required for this repair.

      Caution

      • All of these tests are much more effective if the throttle body is covered or sealed.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to Buick, Cadillac, Chevrolet and GMC passenger cars and trucks, model years 2000 to 2022, gasoline engines only.
    • Condition：Customers may comment that the MIL is illuminated.
    • Condition：Initial diagnosis may show fuel trim and O2 sensor related codes including P0101, P0137, P0138, P0140, P0141, P0157, P0158, P0160 and P0161.
    • Condition：The listed codes also include P0171, P0174, P0420, P0430, P1174 and P1175.
    • Confirm：If normal SI diagnostics do not lead to a resolution and an intake vacuum leak or exhaust leak is suspected, use the GE-52250 Variable Pressure Leak Detector (preferred), the J-41416 ultrasonic leak tester, or possibly soapy water with low pressure air into the tailpipe to find the leak.
    • Caution：All of these tests are much more effective if the throttle body is covered or sealed.
    • Confirm：For an intake leak, introduce the smoke into the brake booster hose or the oil dipstick tube; soapy water can be sprayed near the gasket, seams and all vacuum nipples.
    • Confirm：For an exhaust leak, put the hose with smoke or air into the tailpipe sealed with shop towels, then spray soapy water around seals, seams and bosses.
    • Cause：These methods find small leaks around the O2 sensor embossments and slight cracks in an intake plenum or gasket.
    • Parts：No parts are required for this repair.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.

  4. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2019-03-18

    Diagnostic Tip: Using Smoke Machine and Ultrasonic Detector for Air Leaks

    1. 1Fault

      • The SES light is on, and initial diagnosis may show fuel trim and/or O2 sensor related codes such as P0171, P0174, P0420 and P0430.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. If normal SI diagnostics do not resolve it and an intake vacuum leak or exhaust leak is suspected, the J41413-200 Evaporative System Tester smoke machine, the J-41416 ultrasonic leak tester, or soapy water with low pressure air into the tailpipe may help find the leak.
      2. For an intake leak, the smoke can be introduced into the brake booster hose or the oil dipstick tube.
      3. Soapy water can be sprayed near the gasket and seams and on all vacuum nipples.
      4. For an exhaust leak, a hose into the tailpipe carrying smoke or air, sealed with shop towels, is effective.
      5. Then spray soapy water around the seals, seams and bosses.
      1 more points

    3. 3Correction

      Caution

      • All of these tests are much more effective if the throttle body is covered/sealed.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to all 2000 - 2019 models with gasoline engines.
    • Condition：The SES light is on, and initial diagnosis may show fuel trim and/or O2 sensor related codes such as P0171, P0174, P0420 and P0430.
    • Confirm：If normal SI diagnostics do not resolve it and an intake vacuum leak or exhaust leak is suspected, the J41413-200 Evaporative System Tester smoke machine, the J-41416 ultrasonic leak tester, or soapy water with low pressure air into the tailpipe may help find the leak.
    • Caution：All of these tests are much more effective if the throttle body is covered/sealed.
    • Confirm：For an intake leak, the smoke can be introduced into the brake booster hose or the oil dipstick tube.
    • Confirm：Soapy water can be sprayed near the gasket and seams and on all vacuum nipples.
    • Confirm：For an exhaust leak, a hose into the tailpipe carrying smoke or air, sealed with shop towels, is effective.
    • Confirm：Then spray soapy water around the seals, seams and bosses.
    • Confirm：These methods are very good for finding small leaks around the O2 sensor bosses and slight cracks in an intake plenum or gasket.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools.

EQUIPMENT2

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2018-06-11(3 earlier editions of this document folded here)

    GM Products for Eliminating Vehicle Odors

    1. 1Fault

      • GM Vehicle Care Odor Eliminator has been shown to greatly reduce or remove mold and mildew smells resulting from vehicle water leaks, as well as customer created odors such as smoke.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      • First confirm that all water leaks have been repaired and determine which areas were water soaked or wet; components with visible mold/mildew staining should be replaced.

    3. 3Correction

      Repair

      1. If the interior is removed, treat the floor pan and primed/painted surfaces with a bleach/soap solution, rinse with clean water and dry.
      2. For hard surfaces, add 8 oz. of GM Vehicle Care Odor Eliminator (1 cup) to dish soap in a spray bottle and top off the bottle with tap water.
      3. Treat all carpeting and upholstered seats lightly to moderately with the formula at full strength, using a wide fan spray setting.
      4. For the ventilation system, start the vehicle, turn the fan on high cool (not the A/C setting), and spray the formula (10 trigger pulls) into the outside fresh air intake vent at the cowl.

      Parts

      • Part number 88861431 (in Canada, 88861436): GM Vehicle Care Odor Eliminator, 32 oz (946 mL) non-aerosol bottle.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      Caution

      • Do not let the product come into contact with vinegar or any acidic substance.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2015 and prior GM passenger cars and trucks.
    • Condition：GM Vehicle Care Odor Eliminator has been shown to greatly reduce or remove mold and mildew smells resulting from vehicle water leaks, as well as customer created odors such as smoke.
    • Caution：Do not let the product come into contact with vinegar or any acidic substance.
    • Confirm：First confirm that all water leaks have been repaired and determine which areas were water soaked or wet; components with visible mold/mildew staining should be replaced.
    • Repair：If the interior is removed, treat the floor pan and primed/painted surfaces with a bleach/soap solution, rinse with clean water and dry.
    • Repair：For hard surfaces, add 8 oz. of GM Vehicle Care Odor Eliminator (1 cup) to dish soap in a spray bottle and top off the bottle with tap water.
    • Repair：Treat all carpeting and upholstered seats lightly to moderately with the formula at full strength, using a wide fan spray setting.
    • Repair：For the ventilation system, start the vehicle, turn the fan on high cool (not the A/C setting), and spray the formula (10 trigger pulls) into the outside fresh air intake vent at the cowl.
    • Parts：Part number 88861431 (in Canada, 88861436): GM Vehicle Care Odor Eliminator, 32 oz (946 mL) non-aerosol bottle.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This informational bulletin provides information on what products GM has to aid in the eliminating unwanted odors in a vehicle.

  2. Manufacturer communication2003–2006 GMC YUKON DENALI ・ 2018-04-23

    Fix It Right for First Time Information

    1. 1Fault

      • It is a table of field product reminders listing, per model year and vehicle line/condition, what to do, what not to do, and the reference bulletin.
      • The only row naming Yukon covers 2007-2013 Yukon XL Denali, Yukon Denali, Yukon XL and Yukon (with other listed trucks): a hydraulic power steering leak at the hose connection to the steering rack.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • For that leak the table says to verify the leak with dye and replace the Duckbill seal using J-42640 if necessary, and not to replace the steering gear or lines; the reference is 12-02-32-001A.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The bulletin is addressed to 2013 and prior GM passenger cars and trucks.
    • Condition：It is a table of field product reminders listing, per model year and vehicle line/condition, what to do, what not to do, and the reference bulletin.
    • Condition：The only row naming Yukon covers 2007-2013 Yukon XL Denali, Yukon Denali, Yukon XL and Yukon (with other listed trucks): a hydraulic power steering leak at the hose connection to the steering rack.
    • Repair：For that leak the table says to verify the leak with dye and replace the Duckbill seal using J-42640 if necessary, and not to replace the steering gear or lines; the reference is 12-02-32-001A.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This informational bulletin provides information on fix it right for first time issues.

STEERING2

  1. Manufacturer communication2006 GMC YUKON DENALI ・ 2020-08-10(1 earlier editions of this document folded here)

    Power Steering Noise at Low Temperatures - Technical Bulletin

    1. 1Fault

      • Noise or a fluid leak from the power steering pump, gear or high pressure side hose during extreme low outdoor temperature operation.

    2. 2Finding the cause

      Possible causes

      • At -30°C (-22°F) or lower the power steering fluid may thicken and system pressures may rise, potentially causing noise or damage to components.

    3. 3Correction

      Repair

      • Replace any damaged power steering components, flush the system and refill with Cold Climate power steering fluid.

      Parts

      • P/N 12345866 (in Canada 10953484): 16 oz. bottle Power Steering Fluid - Cold Climate.
      • P/N 12345867 (in Canada 10953471): 32 oz. bottle Power Steering Fluid - Cold Climate.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      Caution

      • In some extreme operating conditions this fluid may not correct the condition.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2014 and prior GM passenger cars and light duty trucks.
    • Condition：Noise or a fluid leak from the power steering pump, gear or high pressure side hose during extreme low outdoor temperature operation.
    • Cause：At -30°C (-22°F) or lower the power steering fluid may thicken and system pressures may rise, potentially causing noise or damage to components.
    • Repair：Replace any damaged power steering components, flush the system and refill with Cold Climate power steering fluid.
    • Caution：In some extreme operating conditions this fluid may not correct the condition.
    • Parts：P/N 12345866 (in Canada 10953484): 16 oz. bottle Power Steering Fluid - Cold Climate.
    • Parts：P/N 12345867 (in Canada 10953471): 32 oz. bottle Power Steering Fluid - Cold Climate.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This technical bulletin provides a procedure to eliminate a power steering noise due to extremely low temperatures.

  2. Manufacturer communication2006 GMC YUKON DENALI ・ 2018-05-21

    Power Steering Fluid Leak at Fluid Reservoir Diagnosis

    1. 1Fault

      • When diagnosing a power steering fluid leak, the technician may find a heat damaged fluid reservoir.

    2. 2Finding the cause

      Possible causes

      • Super heated power steering fluid may affect the pump, reservoir and hoses, and these parts may show no apparent issue at the initial diagnosis.
      • Fluid temperatures high enough to distort or damage the reservoir may damage the power steering pump and affect its durability.

    3. 3Correction

      Repair

      • When replacing a reservoir for a leak that appears to be caused by super heated fluid, also replace the power steering pump and hoses.

      Caution

      • Advise the customer not to hold the steering against the stop or end of travel for more than 5 seconds at an engine speed above 1,500 rpm.
      • Continuous spin-outs or "doughnuts" with the steering at or near the end of travel for more than 5 seconds at a time above 1,500 rpm also overheat the fluid.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2018 and prior GM passenger cars and light duty trucks equipped with hydraulic power steering.
    • Condition：When diagnosing a power steering fluid leak, the technician may find a heat damaged fluid reservoir.
    • Cause：Super heated power steering fluid may affect the pump, reservoir and hoses, and these parts may show no apparent issue at the initial diagnosis.
    • Cause：Fluid temperatures high enough to distort or damage the reservoir may damage the power steering pump and affect its durability.
    • Repair：When replacing a reservoir for a leak that appears to be caused by super heated fluid, also replace the power steering pump and hoses.
    • Caution：Advise the customer not to hold the steering against the stop or end of travel for more than 5 seconds at an engine speed above 1,500 rpm.
    • Caution：Continuous spin-outs or "doughnuts" with the steering at or near the end of travel for more than 5 seconds at a time above 1,500 rpm also overheat the fluid.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This preliminary information bulletin provides information for diagnosing a power steering fluid leak at the fluid reservoir.

EXTERIOR LIGHTING1

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2023-02-28(1 earlier editions of this document folded here)

    Exterior Lamp Condensation and Water Leaks Service Bulletin

    1. 1Fault

      • Exterior lamps such as cornering, turn signal, backup, head or tail lamps may show very small water droplets, a fine mist or white fog (condensation) on the inside of the lens.

    2. 2Finding the cause

      Possible causes

      • Condensation occurs when the air inside the lamp assembly reaches the dew point through atmospheric changes.
      • Non-OE lamps are most often presented as holding moisture or with inoperative bulbs from corroded electrical connections; they appear to be installed as part of a collision repair.

      Steps to confirm (in the document’s order)

      1. Normal: the mist is located mainly in the lens corners near the vents and does not cover more than half the lens surface.
      2. Normal: the moisture clears when the vehicle is parked in a dry environment or driven with the lights on.
      3. Leak: water has accumulated in the bottom of the lamp assembly.
      4. Leak: the condition will not clear when the vehicle is parked in a dry environment or driven with the lights on.

    3. 3Correction

      Repair

      • A condition covering more than half the surface of the lamp lens indicates the need to service the lens or lamp assembly.

      Caution

      • Depending on the lamp and the atmospheric conditions, the time needed to clear the lamp may vary from 2 to 6 hours.
      • If the normal conditions are noted, advise the customer that replacing the lamp assembly may not correct the condition.
      • Moisture that "comes and goes" is considered a normal condition.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2023 and prior GM passenger cars and trucks, including medium duty trucks and excluding LCF medium duty trucks.
    • Condition：Exterior lamps such as cornering, turn signal, backup, head or tail lamps may show very small water droplets, a fine mist or white fog (condensation) on the inside of the lens.
    • Cause：Condensation occurs when the air inside the lamp assembly reaches the dew point through atmospheric changes.
    • Caution：Depending on the lamp and the atmospheric conditions, the time needed to clear the lamp may vary from 2 to 6 hours.
    • Confirm：Normal: the mist is located mainly in the lens corners near the vents and does not cover more than half the lens surface.
    • Confirm：Normal: the moisture clears when the vehicle is parked in a dry environment or driven with the lights on.
    • Caution：If the normal conditions are noted, advise the customer that replacing the lamp assembly may not correct the condition.
    • Repair：A condition covering more than half the surface of the lamp lens indicates the need to service the lens or lamp assembly.
    • Confirm：Leak: water has accumulated in the bottom of the lamp assembly.
    • Confirm：Leak: the condition will not clear when the vehicle is parked in a dry environment or driven with the lights on.
    • Caution：Moisture that "comes and goes" is considered a normal condition.
    • Cause：Non-OE lamps are most often presented as holding moisture or with inoperative bulbs from corroded electrical connections; they appear to be installed as part of a collision repair.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.

FUEL SYSTEM, GASOLINE1

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2021-04-19(2 earlier editions of this document folded here)

    Engine Block Cylinder Bore Damage Information

    1. 1Fault

      • The block is suspected of cylinder bore damage, scoring or out of round as the cause of oil consumption, misfire, cylinder leakage or blow by.

    2. 2Finding the cause

      Possible causes

      • If a catalytic converter fails and the brick breaks, its dust can be drawn back into the engine.

      Steps to confirm (in the document’s order)

      1. The peak to valley spec for crosshatch is .65-2.8 microns; any deviation and the crosshatch will be gone.
      2. Cylinder damage or scoring: the walls have grooves deep enough to catch with a finger nail.
      3. If there is crosshatch all the way around the bore from top to bottom, the bore is not out of round.
      4. Dirt intrusion: with a compromised filtering system the bores look lightly sand blasted, and the crosshatch is faint with no sharpness.
      5. A block with this converter-dust failure has bores that look sand blasted.

    3. 3Correction

      Repair

      • If not caught early there will be no crosshatch and the engine will need to be replaced.

      Caution

      • GM has not had an issue with cylinders being machined out of round for any engine family in recent history.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to all brands and models, model years 2000 - 2021.
    • Condition：The block is suspected of cylinder bore damage, scoring or out of round as the cause of oil consumption, misfire, cylinder leakage or blow by.
    • Caution：GM has not had an issue with cylinders being machined out of round for any engine family in recent history.
    • Confirm：The peak to valley spec for crosshatch is .65-2.8 microns; any deviation and the crosshatch will be gone.
    • Confirm：Cylinder damage or scoring: the walls have grooves deep enough to catch with a finger nail.
    • Confirm：If there is crosshatch all the way around the bore from top to bottom, the bore is not out of round.
    • Confirm：Dirt intrusion: with a compromised filtering system the bores look lightly sand blasted, and the crosshatch is faint with no sharpness.
    • Cause：If a catalytic converter fails and the brick breaks, its dust can be drawn back into the engine.
    • Confirm：A block with this converter-dust failure has bores that look sand blasted.
    • Repair：If not caught early there will be no crosshatch and the engine will need to be replaced.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.

SUSPENSION1

  1. Manufacturer communication2003–2006 GMC YUKON DENALI ・ 2021-04-16

    Fluid Leakage vs. Seepage Identification Guide

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to unnecessary component replacement. Use the following information to determine if the condition is normal acceptable seepage or a defective component

    Read the sentences of the record
    Remedy
    Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to unnecessary component replacement. Use the following information to determine if the condition is normal acceptable seepage or a defective component

TIRES1

  1. Manufacturer communication2005–2006 GMC YUKON DENALI ・ 2018-05-29

    Slow Tire Leak and Low Tire PSI Message Correction

    1. 1Fault

      • A tire slowly loses air pressure over a period of days or weeks.

    2. 2Finding the cause

      Possible causes

      • Abrasive elements from the environment get between the tire and the wheel at the bead seat, and the relative motion between tire and wheel lets them wear both materials.

      Steps to confirm (in the document’s order)

      1. The corrosion may be on the inboard or outboard bead seat and is not visible until the tire is dismounted from the wheel.
      2. After a water dunk tank leak test, if the leak is around the bead seat of the wheel, dismount the tire and examine the bead seat.
      3. Bead seat corrosion looks like blistering of the wheel finish, leaving a rough or uneven surface on which the tire cannot keep a proper seal.
      4. At 32,186 km (20,000 mi) or less, the total combined linear length of repairable corrosion is 100 mm (4 in) or less; beyond that, replace the wheel.
      5. Above 32,186 km (20,000 mi), the total combined linear length of repairable corrosion is 200 mm (8 in) or less; beyond that, replace the wheel.

    3. 3Correction

      Repair

      1. Remove the corrosion and any flaking paint with a clean-up (fine cut) sanding disc or biscuit, back to material that is stable and firmly bonded to the wheel.
      2. Coat the repaired area with a commercially available tire sealant such as Patch Brand Bead Sealant or equivalent.

      Caution

      • Remove only the material needed to eliminate the corrosion from the bead seat; keep the sealing surface as smooth and level as possible.
      • If loose coatings or corrosion extend to the visible surfaces on the face of the wheel, the wheel must be replaced.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：2005-2015 GM passenger cars and light duty trucks.
    • Condition：A tire slowly loses air pressure over a period of days or weeks.
    • Cause：Abrasive elements from the environment get between the tire and the wheel at the bead seat, and the relative motion between tire and wheel lets them wear both materials.
    • Confirm：The corrosion may be on the inboard or outboard bead seat and is not visible until the tire is dismounted from the wheel.
    • Confirm：After a water dunk tank leak test, if the leak is around the bead seat of the wheel, dismount the tire and examine the bead seat.
    • Confirm：Bead seat corrosion looks like blistering of the wheel finish, leaving a rough or uneven surface on which the tire cannot keep a proper seal.
    • Confirm：At 32,186 km (20,000 mi) or less, the total combined linear length of repairable corrosion is 100 mm (4 in) or less; beyond that, replace the wheel.
    • Confirm：Above 32,186 km (20,000 mi), the total combined linear length of repairable corrosion is 200 mm (8 in) or less; beyond that, replace the wheel.
    • Repair：Remove the corrosion and any flaking paint with a clean-up (fine cut) sanding disc or biscuit, back to material that is stable and firmly bonded to the wheel.
    • Caution：Remove only the material needed to eliminate the corrosion from the bead seat; keep the sealing surface as smooth and level as possible.
    • Repair：Coat the repaired area with a commercially available tire sealant such as Patch Brand Bead Sealant or equivalent.
    • Caution：If loose coatings or corrosion extend to the visible surfaces on the face of the wheel, the wheel must be replaced.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This technical bulletin provides a procedure on cleaning a leaking rim, to correct a customers concern of having a slow tire leak and low tire psi message on.

VISIBILITY1

  1. Manufacturer communication2005–2006 GMC YUKON ・ 2022-07-25(4 earlier editions of this document folded here)

    Sunroof Operation Concerns – Diagnostic Information

    1. 1Fault

      • Customers may comment on intermittent sunroof operation, bind, noise, auto-reverse and/or water leaks.

    2. 2Finding the cause

      Possible causes

      • Dirt and debris may collect on the sunroof seal or in the tracks and affect operation, cause noise or plug the water drainage system.

    3. 3Correction

      Repair

      1. Open the sunroof, remove any obstacles or loose debris, and verify that the module drain holes are not plugged.
      2. Wipe the sunroof seal and roof sealing area with a clean cloth, mild soap and water; do not remove grease from the sunroof.

      Caution

      • Some replaced sunroof module assemblies were tested and found that simple cleaning of these areas would have repaired the condition without replacing the assembly.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model table lists all brands and models for model years 2005 - 2023.
    • Condition：Customers may comment on intermittent sunroof operation, bind, noise, auto-reverse and/or water leaks.
    • Cause：Dirt and debris may collect on the sunroof seal or in the tracks and affect operation, cause noise or plug the water drainage system.
    • Repair：Open the sunroof, remove any obstacles or loose debris, and verify that the module drain holes are not plugged.
    • Repair：Wipe the sunroof seal and roof sealing area with a clean cloth, mild soap and water; do not remove grease from the sunroof.
    • Caution：Some replaced sunroof module assemblies were tested and found that simple cleaning of these areas would have repaired the condition without replacing the assembly.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.

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