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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 lightMisfire or rough idleLeakNoiseLoss of engine power, no accelerationHard start or long crankDoes not startGauge or instrument fault

Record by record

40 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

How it is said to have ended

  • says it came back2
  • says it did not fix it2

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 (28)

Known issuesSingle-cylinder misfire (P0300-P0308) and/or chirp, squeak or tick at camshaft speed: worn cam lobe / lifter, valve or valve spring2

  1. Manufacturer communication2002–2006 GMC YUKON DENALI ・ 2018-11-13(4 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.

  2. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2017-08-15

    Service Engine Soon Lamp and Engine Misfire Information

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      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.

      What the documents say to do

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

      Confirm

      • If pressing on the valve side of the rocker changes the noise, a lifter and/or cam lobe concern on that cylinder is most likely.

      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.

      Caution

      • A damaged cam lobe is easy to overlook when inspecting through the lifter bores; unworn lifter rollers do not mean the cam lobes are okay.
    Read the sentences of the record

    Open the manufacturer’s document (PDF) ↗ What is shown here is NHTSA’s summary; the procedure is in the document itself.

    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 issuesP0420 / P0430 on a new or just-replaced catalytic converter (break-in not completed)1

  1. Manufacturer communication2002–2006 GMC YUKON DENALI ・ 2019-04-08

    Service Engine Soon Lamp at Low Mileage

    1. 1Fault

      • An SES light may come on on low mileage vehicles or vehicles that recently had the catalytic converter replaced, with DTCs P0420 and/or P0430 stored.

    2. 2Finding the cause

      Possible causes

      • On a new vehicle, catalytic converter efficiency DTCs P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter.
      • If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing.
      • If the DTCs set shortly after the catalytic converter is replaced, it may be because the engine run time restrictions are no longer in place since the vehicle is no longer new.
      • As a result, the catalytic converter may not have completed a thorough break-in cycle after replacement, possibly resulting in a false DTC P0420 and/or P0430.

      Steps to confirm (in the document’s order)

      1. On a new/low mileage vehicle with these DTCs, use the Tech 2 to verify engine run time on the Engine Hour Meter in the IPC Data Display/Data 1 List.
      2. Finally, restart the engine and operate the vehicle at the conditions for running the DTC P0420/430 tests, and make sure the vehicle passes them.

    3. 3Correction

      Repair

      1. Clear the DTCs and perform the drive cycle given in the document.
      2. Drive cycle step: drive the vehicle at sustained highway speed for 25 to 30 minutes.
      3. Drive cycle step: restart the engine and resume highway speed for an additional 10 to 15 minutes.
      4. If the diagnostics do not pass, perform SI diagnostics and repair as necessary.
    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：An SES light may come on on low mileage vehicles or vehicles that recently had the catalytic converter replaced, with DTCs P0420 and/or P0430 stored.
    • Cause：On a new vehicle, catalytic converter efficiency DTCs P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter.
    • Confirm：On a new/low mileage vehicle with these DTCs, use the Tech 2 to verify engine run time on the Engine Hour Meter in the IPC Data Display/Data 1 List.
    • Cause：If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing.
    • Cause：If the DTCs set shortly after the catalytic converter is replaced, it may be because the engine run time restrictions are no longer in place since the vehicle is no longer new.
    • Cause：As a result, the catalytic converter may not have completed a thorough break-in cycle after replacement, possibly resulting in a false DTC P0420 and/or P0430.
    • Repair：Clear the DTCs and perform the drive cycle given in the document.
    • Repair：Drive cycle step: drive the vehicle at sustained highway speed for 25 to 30 minutes.
    • Repair：Drive cycle step: restart the engine and resume highway speed for an additional 10 to 15 minutes.
    • Confirm：Finally, restart the engine and operate the vehicle at the conditions for running the DTC P0420/430 tests, and make sure the vehicle passes them.
    • Repair：If the diagnostics do not pass, perform SI diagnostics and repair as necessary.

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

    Remedy
    This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster  Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle.

ENGINE AND ENGINE COOLING10

  1. Manufacturer communication2002–2006 GMC YUKON DENALI ・ 2023-04-13(1 earlier editions of this document folded here)

    Diagnostic tip on valve, lifter or camshaft issues

    1. 1Fault

      • Misfire, chirp, squeak, squeal or tick noise, with the MIL illuminated and DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and/or P0308 set.

    2. 2Finding the cause

      Possible causes

      • A worn cam lobe on this engine family generally creates a consistent chirp, squeak, squeal or tick at camshaft speed and/or a misfire with a P0300-P0308 DTC.

      Steps to confirm (in the document’s order)

      1. A verified noise is not eliminated by canceling fuel injectors and occurs at camshaft speed (half of crankshaft speed).
      2. If applying pressure to the valve side of a rocker changes the noise, a lifter and/or cam lobe concern on that cylinder is most likely.
      3. Measure cam lobe lift at the push rod side of the rocker arm; it differs from the SI specification but should be similar to the other rockers on the same bank.
      4. A bore scope or pen light helps when inspecting the cam lobes through the lifter bores; a damaged lobe is easy to overlook.
      5. A good indicator of a sticking valve is that misfires continue to count on an aggressive deceleration with engine braking.
      2 more points

    3. 3Correction

      Repair

      1. If a worn camshaft lobe or lifter roller is found, replace the camshaft and all lifters following SI procedures.
      2. If force is needed to tap the valve off its seat, excessive carbon build up exists, which may be repaired by decarbonizing the engine.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：GM passenger cars and trucks with V6/V8 pushrod engines, model years 2002 to 2023.
    • Condition：Misfire, chirp, squeak, squeal or tick noise, with the MIL illuminated and DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and/or P0308 set.
    • Confirm：A verified noise is not eliminated by canceling fuel injectors and occurs at camshaft speed (half of crankshaft speed).
    • Cause：A worn cam lobe on this engine family generally creates a consistent chirp, squeak, squeal or tick at camshaft speed and/or a misfire with a P0300-P0308 DTC.
    • Confirm：If applying pressure to the valve side of a rocker changes the noise, a lifter and/or cam lobe concern on that cylinder is most likely.
    • Confirm：Measure cam lobe lift at the push rod side of the rocker arm; it differs from the SI specification but should be similar to the other rockers on the same bank.
    • Confirm：A bore scope or pen light helps when inspecting the cam lobes through the lifter bores; a damaged lobe is easy to overlook.
    • Repair：If a worn camshaft lobe or lifter roller is found, replace the camshaft and all lifters following SI procedures.
    • Confirm：A good indicator of a sticking valve is that misfires continue to count on an aggressive deceleration with engine braking.
    • Repair：If force is needed to tap the valve off its seat, excessive carbon build up exists, which may be repaired by decarbonizing the engine.
    • Confirm：Valve leakage is typically isolated by the Cylinder Leakage Test in SI, which finds excessive leakage past an intake or exhaust valve compared with the others.
    • Confirm：The two pieces of a broken valve spring may stay stacked together and be hard to see; lightly pushing on different places on the springs with a small hammer handle may help.

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

    Remedy
    This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.

  2. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2017-08-15(1 earlier editions of this document folded here)

    Engine Check Lamp P0442 Evaporative Emissions System Notification

    1. 1Fault

      • The service engine soon lamp (MIL) is on for DTC P0442, but a leak cannot be verified with the system test in the service information.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. With the scan tool, command the EVAP system CLOSED, start the engine and watch the tank pressure sensor value for about two minutes.
      2. If the tank pressure value changes (shows vacuum), remove the purge solenoid and pressurize its fuel tank side with the GE 41413-A / J 41413-A tester.
      3. If the tank pressure value does not change, install the CH-48096 adaptor between the purge line from the canister and the purge solenoid; use no other adaptor or pressurization method.
      4. With the EVAP system CLOSED, pressurize through the adaptor and let the system stabilize, watching the gauge for at least 5 minutes, then add smoke.
      5. Look for smoke or UV trace fluid at the purge solenoid, the engine side, the fuel cap or capless fill door, and the canister vent solenoid filter or fresh-air line.
      1 more points

    3. 3Correction

      Repair

      • If smoke passes through the purge solenoid, replace the purge solenoid.

      Caution

      • After verifying P0442, do not disturb any fuel system component before testing.
      • Test pressure must not exceed 13 in H2O (0.5 PSI (= 3.45 kPa)); more can make components perform inaccurately and lead to misdiagnosis.
      • A large temperature difference between vehicle, shop and tester seriously affects accuracy; let the vehicle adjust to shop temperature first.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2016 and prior passenger cars and trucks.
    • Condition：The service engine soon lamp (MIL) is on for DTC P0442, but a leak cannot be verified with the system test in the service information.
    • Caution：After verifying P0442, do not disturb any fuel system component before testing.
    • Confirm：With the scan tool, command the EVAP system CLOSED, start the engine and watch the tank pressure sensor value for about two minutes.
    • Confirm：If the tank pressure value changes (shows vacuum), remove the purge solenoid and pressurize its fuel tank side with the GE 41413-A / J 41413-A tester.
    • Repair：If smoke passes through the purge solenoid, replace the purge solenoid.
    • Confirm：If the tank pressure value does not change, install the CH-48096 adaptor between the purge line from the canister and the purge solenoid; use no other adaptor or pressurization method.
    • Confirm：With the EVAP system CLOSED, pressurize through the adaptor and let the system stabilize, watching the gauge for at least 5 minutes, then add smoke.
    • Confirm：Look for smoke or UV trace fluid at the purge solenoid, the engine side, the fuel cap or capless fill door, and the canister vent solenoid filter or fresh-air line.
    • Confirm：If smoke testing finds nothing, the leak may exist only under vacuum: use the scan tool Purge/Seal function to pull a vacuum and watch the FTP sensor parameter for vacuum decay.
    • Caution：Test pressure must not exceed 13 in H2O (0.5 PSI (= 3.45 kPa)); more can make components perform inaccurately and lead to misdiagnosis.
    • Caution：A large temperature difference between vehicle, shop and tester seriously affects accuracy; let the vehicle adjust to shop temperature first.

    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. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442 has been verified do not disturb any of the fuel system components. The technician now can use the scan tool to close the Evaporative Emissions System. If possible change the tank pressure sensor units from inch_H2O to milimeter_Hg for better resolution. Now the vehicle can be stared to monitor the tank pressure sensor output value for approximately two minutes. If the tank pressure sensor value does change, pressurize the fuel tank side of the purge solenoid with the GE 41413-A / J 41413-A and the necessary adaptors. Now add smoke and allow pressure to stabilize for 2 minutes. If smoke is allowed to pass through the purge solenoid, replace the purge solenoid. If the tank pressure sensor value does not change, then install CH-48096 adaptor between the purge line from the canister and the purge solenoid. With the Evaporative Emissions System closed, pressurize the system through the CH-48096 adaptor and allow the system to completely stabilize, by observing the Press / Vac Gauge for a minimum of 5 minutes. Now add smoke to the system with GE 41413-A / J 41413-A after system stabilization. Now inspect the purge solenoid, engine side, fuel cap, canister vent solenoid filter and any line quick connects. When the leak is unable to be located, test under a vacuum condition. his type of leak may be detected by using the scan tool Purge/Seal function to create a vacuum in the Evaporative Emissions System and then observe the FTP sensor parameter for vacuum decay.

  3. Manufacturer communication2000–2006 GMC YUKON ・ 2011-06-08

    Service Engine Soon Light On With Misfire or Engine Noise

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      GM: THE SERVICE ENGINE SOON LIGHT IS ON, THERE IS ALSO A MISFIRE OR ENGINE NOISE. THERE ARE MULTIPLE POSSIBLE CAUSES. *RM

    Read the sentences of the record
    Remedy
    GM: THE SERVICE ENGINE SOON LIGHT IS ON, THERE IS ALSO A MISFIRE OR ENGINE NOISE. THERE ARE MULTIPLE POSSIBLE CAUSES. *RM

  4. Manufacturer communication2002–2004 GMC YUKON ・ 2005-11-03

    Flexible Fuel (RPO L59) Rough Idle and Misfire Diagnostic

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      FLEXIBLE FUEL (RPO L59) ROUGH IDLE, MISFIRE, MALFUNCTION INDICATOR LAMP DIAGNOSTIC TROUBLE CODE P0300. *TT

    Read the sentences of the record
    Remedy
    FLEXIBLE FUEL (RPO L59) ROUGH IDLE, MISFIRE, MALFUNCTION INDICATOR LAMP DIAGNOSTIC TROUBLE CODE P0300. *TT

  5. Manufacturer communication2003–2005 GMC YUKON ・ 2004-11-17

    Check Engine Light with P0300 DTC for 2-4 Cylinder Misfires

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      CHECK ENGINE LIGHT WITH A P0300 DUE TO 2-4 CYLINDERS MISFIRING ON THE SAME BANK OF THE ENGINE. *TT

    Read the sentences of the record
    Remedy
    CHECK ENGINE LIGHT WITH A P0300 DUE TO 2-4 CYLINDERS MISFIRING ON THE SAME BANK OF THE ENGINE. *TT

  6. Manufacturer communication2000–2005 GMC YUKON ・ 2004-10-14

    Service Engine Soon Light with P0300 Misfire on Cylinder 7 Communication

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      SERVICE ENGINE SOON LIGHT WITH A P0300 MISFIRE DUE TO MISFIRES MAINLY ON CYLINDER 7. *TT

    Read the sentences of the record
    Remedy
    SERVICE ENGINE SOON LIGHT WITH A P0300 MISFIRE DUE TO MISFIRES MAINLY ON CYLINDER 7. *TT

  7. Manufacturer communication2003 GMC YUKON ・ 2004-09-27

    Service Engine Soon light and reduced engine power mode

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      SERVICE ENGINE SOON LIGHT AND / OR REDUCED ENGINE POWER MODE DUE TO DIAGNOSTIC TROUBLE CODES P0120, P0220, P1516 AND/OR P1518. THIS CONDITION IS NORMALLY VERY INTERMITTENT. *TT

    Read the sentences of the record
    Remedy
    SERVICE ENGINE SOON LIGHT AND / OR REDUCED ENGINE POWER MODE DUE TO DIAGNOSTIC TROUBLE CODES P0120, P0220, P1516 AND/OR P1518. THIS CONDITION IS NORMALLY VERY INTERMITTENT. *TT

  8. Manufacturer communication2003 GMC YUKON ・ 2004-09-27

    SERVICE ENGINE SOON Light and Reduced Engine Power Mode

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      SERVICE ENGINE SOON LIGHT AND / OR REDUCED ENGINE POWER MODE DUE TO DIAGNOSTIC TROUBLE CODES P0120, P0220, P1516 AND/OR P1518. THIS CONDITION IS NORMALLY VERY INTERMITTENT. *TT

    Read the sentences of the record
    Remedy
    SERVICE ENGINE SOON LIGHT AND / OR REDUCED ENGINE POWER MODE DUE TO DIAGNOSTIC TROUBLE CODES P0120, P0220, P1516 AND/OR P1518. THIS CONDITION IS NORMALLY VERY INTERMITTENT. *TT

  9. Manufacturer communication2000–2003 GMC YUKON ・ 2004-08-23

    Service Engine Soon Light On Due to Dust in EVAP Vent Valve

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      SERVICE ENGINE SOON (SES) LIGHT ON WITH P0446 DUE TO DUST IN THE EVAP VENT VALVE ON VEHICLES THAT ARE OPERATED IN DUSTY ENVIRONMENTS, SUCH AS FARMING OR OFF-ROAD APPLICATIONS. *TT

    Read the sentences of the record
    Remedy
    SERVICE ENGINE SOON (SES) LIGHT ON WITH P0446 DUE TO DUST IN THE EVAP VENT VALVE ON VEHICLES THAT ARE OPERATED IN DUSTY ENVIRONMENTS, SUCH AS FARMING OR OFF-ROAD APPLICATIONS. *TT

  10. Manufacturer communication2003 GMC YUKON DENALI ・ 2003-11-24

    Service Engine Soon Light On with TAC Module Codes

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      SERVICE ENGINE SOON (SES) LIGHT ON WITH TAC MODULE CODES P1516 AND POSSIBLE CODES P1514, P1515, P1518. *TT

    Read the sentences of the record
    Remedy
    SERVICE ENGINE SOON (SES) LIGHT ON WITH TAC MODULE CODES P1516 AND POSSIBLE CODES P1514, P1515, P1518. *TT

ENGINE5

  1. Owner complaint2003 GMC YUKON DENALI ・ 2013-10-19

    Engine and traction control lights illuminating uphill

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    I WAS DRIVING APPROXIMATELY 65 MPH (= 104.6 km/h) UPHILL WHEN MY ENGINE AND TRACTION LIGHT CAME ON.
    Remedy
    I TOOK THE TRUCK TO A MECHANIC THE NEXT DAY AND HE REPLACED THE THROTTLE BODY.
    Outcome
    I PICKED UP THE TRUCK THAT EVENING AND AS I WAS DRIVING HOME THE SAME THING HAPPENED AGAIN.

  2. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2024-07-16(1 earlier editions of this document folded here)

    Fuel Injection Cleaner Kit Service Bulletin

    1. 1Fault

      • Rough idle, crank no start, extended crank or misfire, with the engine warning lamp on and DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308 set.
      • When the engine is cold, compression on multiple cylinders may be zero.
      • The engine may pop through the intake or exhaust while cranking, and the spark plugs may be fuel fouled.

    2. 2Finding the cause

      Possible causes

      • Major carbon build-up on the intake and/or exhaust valves from fuel contamination or incomplete burning of the fuel; misfires should not appear before at least 8,000 km (5,000 mi).

    3. 3Correction

      Repair

      1. If there is no valve damage and no cam follower out of place, perform the cleaning procedure to free sticking valves and remove carbon from the valves and pistons.
      2. If valves are damaged or cam followers are out of place, make the engine mechanical repairs first and then perform the cleaning procedure to prevent a return.
      3. Fill Cleaner Kit J-35800-A with about 650 ml (22 oz, 2 cans) of Air Intake, Combustion Chamber Cleaner and set the air pressure at the tool to 260 kPa (40 psi).
      4. With GDS 2 or a scan tool, command engine idle to 2000 rpm so the engine does not stall.
      5. With the engine at operating temperature in a well-ventilated area, slowly and carefully induce the cleaner into the engine, taking about 3 minutes.

      Parts

      • The Top Engine Cleaning Kit (ACDelco Air Intake, Valve and Combustion Chamber Cleaner and ACDelco Fuel System Cleaner 44K) is 19435372 for the U.S. and Canada.

      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

      • Inducing too much cleaner at too low an RPM, or stalling the engine with too much cleaner at once, may hydro-lock the engine and bend a connecting rod.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to GM passenger cars and trucks with gasoline engines only, model years 2000 to 2025.
    • Condition：Rough idle, crank no start, extended crank or misfire, with the engine warning lamp on and DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308 set.
    • Condition：When the engine is cold, compression on multiple cylinders may be zero.
    • Condition：The engine may pop through the intake or exhaust while cranking, and the spark plugs may be fuel fouled.
    • Cause：Major carbon build-up on the intake and/or exhaust valves from fuel contamination or incomplete burning of the fuel; misfires should not appear before at least 8,000 km (5,000 mi).
    • Repair：If there is no valve damage and no cam follower out of place, perform the cleaning procedure to free sticking valves and remove carbon from the valves and pistons.
    • Repair：If valves are damaged or cam followers are out of place, make the engine mechanical repairs first and then perform the cleaning procedure to prevent a return.
    • Caution：Inducing too much cleaner at too low an RPM, or stalling the engine with too much cleaner at once, may hydro-lock the engine and bend a connecting rod.
    • Repair：Fill Cleaner Kit J-35800-A with about 650 ml (22 oz, 2 cans) of Air Intake, Combustion Chamber Cleaner and set the air pressure at the tool to 260 kPa (40 psi).
    • Repair：With GDS 2 or a scan tool, command engine idle to 2000 rpm so the engine does not stall.
    • Repair：With the engine at operating temperature in a well-ventilated area, slowly and carefully induce the cleaner into the engine, taking about 3 minutes.
    • Parts：The Top Engine Cleaning Kit (ACDelco Air Intake, Valve and Combustion Chamber Cleaner and ACDelco Fuel System Cleaner 44K) is 19435372 for the U.S. and Canada.

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

    Remedy
    This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

  3. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2017-08-15(1 earlier editions of this document folded here)

    Engine Misfire and Rough Idle Malfunction Indicator Lamp

    1. 1Fault

      • Customers may complain of a MIL and/or engine misfire, rough idle, extended crank, or crank no start.
      • One or more misfire codes (DTC P0300-P0308) are found stored in the ECM.

    2. 2Finding the cause

      Possible causes

      • The condition may result from major carbon build up on the intake and/or exhaust valves due to fuel contamination or incomplete burning of the fuel.

      Steps to confirm (in the document’s order)

      1. With the engine cold, compression on multiple cylinders may read 0 PSI (= 0 kPa).
      2. The engine may pop through the intake or exhaust while cranking, and the spark plugs may be fuel fouled.

    3. 3Correction

      Repair

      1. If there is valve damage or cam followers are out of place, make the mechanical repairs first, then perform the cleaning procedure to keep the concern from returning.
      2. With the engine at operating temperature, slowly induce a bottle of GM Upper Engine and Fuel Injection Cleaner with RPM held above idle so the engine does not stall (typically around 2,000 RPM).
      3. Turn the engine off and let the cleaner soak for 2.5 to 3 hours.
      4. To complete the repair, change the engine oil and filter.

      Parts

      • Upper Engine and Fuel Injector Cleaner is P/N 88861803 (in Canada, P/N 88861804).

      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

      • Inducing too much cleaner at too low an RPM, or stalling the engine with cleaner, may hydro-lock the engine and bend a connecting rod.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to all 2000-2015 light duty trucks with gasoline engines.
    • Condition：Customers may complain of a MIL and/or engine misfire, rough idle, extended crank, or crank no start.
    • Condition：One or more misfire codes (DTC P0300-P0308) are found stored in the ECM.
    • Cause：The condition may result from major carbon build up on the intake and/or exhaust valves due to fuel contamination or incomplete burning of the fuel.
    • Confirm：With the engine cold, compression on multiple cylinders may read 0 PSI (= 0 kPa).
    • Confirm：The engine may pop through the intake or exhaust while cranking, and the spark plugs may be fuel fouled.
    • Repair：If there is valve damage or cam followers are out of place, make the mechanical repairs first, then perform the cleaning procedure to keep the concern from returning.
    • Repair：With the engine at operating temperature, slowly induce a bottle of GM Upper Engine and Fuel Injection Cleaner with RPM held above idle so the engine does not stall (typically around 2,000 RPM).
    • Repair：Turn the engine off and let the cleaner soak for 2.5 to 3 hours.
    • Repair：To complete the repair, change the engine oil and filter.
    • Caution：Inducing too much cleaner at too low an RPM, or stalling the engine with cleaner, may hydro-lock the engine and bend a connecting rod.
    • Parts：Upper Engine and Fuel Injector Cleaner is P/N 88861803 (in Canada, P/N 88861804).

    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 Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon an upper engine and valve cleaning should be performed.

  4. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2017-05-16

    Engine Misfire and Rough Idle Diagnostic Communication

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A MALFUNCTION INDICATOR LAMP ON OR ENGINE MISFIRE, ROUGH IDLE, EXTENDED CRANK, OR CRANK NO START IN SOME CASES. TECHNICIAN WILL NEED TO PERFORM PUBLISHED SERVICE INFORMATION DIAGNOSTICS. IF TECHNICIAN FINDS CARBON, AN UPPER ENGINE AND VALVE CLEANING SHOULD BE PERFORMED.

    Read the sentences of the record
    Remedy
    THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A MALFUNCTION INDICATOR LAMP ON OR ENGINE MISFIRE, ROUGH IDLE, EXTENDED CRANK, OR CRANK NO START IN SOME CASES. TECHNICIAN WILL NEED TO PERFORM PUBLISHED SERVICE INFORMATION DIAGNOSTICS. IF TECHNICIAN FINDS CARBON, AN UPPER ENGINE AND VALVE CLEANING SHOULD BE PERFORMED.

  5. Owner complaint2003 GMC YUKON ・ 2014-09-02

    Engine stall with check engine light at 30 mph

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3CorrectionNot repaired

      THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED.

    Read the sentences of the record
    Fault
    WHILE DRIVING APPROXIMATELY 30 MPH (= 48.3 km/h), THE ENGINE STALLED AND THE CHECK ENGINE WARNING INDICATOR ILLUMINATED.
    Remedy
    THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED.
    Inspection
    THE DEALER WAS UNABLE TO DIAGNOSE THE CAUSE OF THE FAILURE.

POWER TRAIN4

  1. Manufacturer communication2002–2005 GMC YUKON ・ 2005-05-11

    Intermittent MIL with DTC C0374 or Erratic 4WD/AWD Operation

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      INTERMITTENT MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) C0374 OR ERRATIC 4WD/AWD OPERATION. *TT

    Read the sentences of the record
    Remedy
    INTERMITTENT MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) C0374 OR ERRATIC 4WD/AWD OPERATION. *TT

  2. Manufacturer communication2003 GMC YUKON ・ 2005-04-08

    SERVICE ENGINE SOON LIGHT AND NO-START CONDITION

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      SERVICE ENGINE SOON LIGHT IS ILLUMINATED AND THE VEHICLE MAY NOT START. DIAGNOSTIC TROUBLE CODE P0706, WHICH RELATES TO TRANSMISSION RANGE SWITCH PERFORMANCE MAY BE STORED. *TT

    Read the sentences of the record
    Remedy
    SERVICE ENGINE SOON LIGHT IS ILLUMINATED AND THE VEHICLE MAY NOT START. DIAGNOSTIC TROUBLE CODE P0706, WHICH RELATES TO TRANSMISSION RANGE SWITCH PERFORMANCE MAY BE STORED. *TT

  3. Manufacturer communication2000–2004 GMC YUKON DENALI ・ 2004-02-10

    Service Engine Light, 3rd/4th Gear, Transmission Shift Issues Notification

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. *TT

    Read the sentences of the record
    Remedy
    THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. *TT

  4. Manufacturer communication2000–2003 GMC YUKON ・ 2003-12-04

    Transmission Stuck in Third Gear or Inoperative Instrument Cluster

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      MALFUNCTION INDICATOR LAMP (MIL) IS ON; THE TRANSMISSION IS STUCK IN THIRD GEAR; AND / OR THE INSTRUMENT CLUSTER IS INOPERATIVE. *TT

    Read the sentences of the record
    Remedy
    MALFUNCTION INDICATOR LAMP (MIL) IS ON; THE TRANSMISSION IS STUCK IN THIRD GEAR; AND / OR THE INSTRUMENT CLUSTER IS INOPERATIVE. *TT

ELECTRONIC STABILITY CONTROL (ESC)2

  1. Owner complaint2003 GMC YUKON DENALI ・ 2018-03-21

    Reduced engine power light and speed drops to 20 MPH with check engine codes P0120 and P2135

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Not stated

    Read the sentences of the record
    Outcome
    THE CONSUMER STATED THE VEHICLE WAS REPAIRED AND REQUESTED WITHDRAW THE COMPLAINT. *JS

  2. Owner complaint2003 GMC YUKON DENALI ・ 2013-11-11

    Service engine light and traction control on with engine power reduced and stability system disabled

    1. 1Fault

    2. 2Finding the cause

      I THINK GMC IS RESPONSIBLE FOR THIS AND MORE SIMILAR PROBLEMS. *TR

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    THE SERVICE ENGINE LIGHT AND TRACTION CONTROL TURN ON AND THE INFORMATION CENTER ON MY CLUSTER READS "ENGINE POWER REDUCED" AND "STABILITY SYSTEM DISABLE", THEN MY SPEED IS REDUCED AND ONLY RUNS BETWEEN TEN AND TWENTY MILES PER HOUR.
    Cause
    I THINK GMC IS RESPONSIBLE FOR THIS AND MORE SIMILAR PROBLEMS. *TR

No component category1

  1. Manufacturer communication2002–2005 GMC FULL-SIZE PICKUPS AND UTILITIES (YUKON) ・ 2005-06-01

    Which vehicles may use E-85 fuel

    1. 1Fault

    2. 2Finding the cause

      Possible causes

      • Fuel containing more than 10% ethanol in vehicles not designated for E-85 can cause driveability issues, Service Engine Soon lights and increased fuel system corrosion.

    3. 3Correction

      Caution

      • All other gasoline engines, including all 5.3L V8 with VIN designators other than the letter Z, are not E-85 compatible.
      • Only vehicles designated for use with E-85 should use E-85 blended fuel.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The only E-85 compatible vehicles GM produced are 2000 - 02 S series pickups with the 2.2L L43 engine and 2002 - 05 full-size pickups and utilities with the 5.3L L59 VIN code Z V8 engine.
    • Caution：All other gasoline engines, including all 5.3L V8 with VIN designators other than the letter Z, are not E-85 compatible.
    • Caution：Only vehicles designated for use with E-85 should use E-85 blended fuel.
    • Cause：Fuel containing more than 10% ethanol in vehicles not designated for E-85 can cause driveability issues, Service Engine Soon lights and increased fuel system corrosion.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    E-85 Fuel The only E-85 compatible vehicles produced by General Motors are 2000 - 02 S series pickups equipped with the 2.2L L43 4-cylinder engine and 2002 - 05 full-size pickups and utilities equipped with the 5.3L L59 VIN code Z V8 engine. All other gasoline engines including all 5.3L V8 with VIN designators other than the letter Z are not E-85 compatible. Only vehicles designated for use with E-85 should use E-85 blended fuel. Use of fuel containing greater than 10% ethanol in non E-85 designated vehicles can cause driveability issues, Service Engine Soon lights, and increased fuel system corrosion.

ELECTRICAL SYSTEM1

  1. Manufacturer communication2003–2006 GMC YUKON ・ 2004-10-04

    Service Engine Soon Light and Reduced Engine Power (P1516)

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      SERVICE ENGINE SOON LIGHT AND REDUCED ENGINE POWER WITH A DIAGNOSTIC TROUBLE CODE P1516. DIAGNOSTIC TROUBLE CODES P0120, P0220, P1514, P1515, P1518 AND P2135 MAY ALSO BE PRESENT. *TT

    Read the sentences of the record
    Remedy
    SERVICE ENGINE SOON LIGHT AND REDUCED ENGINE POWER WITH A DIAGNOSTIC TROUBLE CODE P1516. DIAGNOSTIC TROUBLE CODES P0120, P0220, P1514, P1515, P1518 AND P2135 MAY ALSO BE PRESENT. *TT

FUEL SYSTEM, GASOLINE1

  1. Owner complaint2003 GMC YUKON ・ 2004-10-17

    Engine stalling while driving with check engine and traction control lights on

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    DRIVING 60 MPH (= 96.6 km/h) ON A 20 MILE (= 32.2 km) BRIDGE, THE ENGINE FAILED (ENGINE LIGHT AND TRACTION CONTROL LIGHT WERE ON. (1 more)
    Remedy
    REPLACED HARNESS. (1 more)
    Inspection
    THEY FOUND 2 MORE BROKEN WIRES. (1 more)

VEHICLE SPEED CONTROL1

  1. Owner complaint2003 GMC YUKON ・ 2003-03-13

    Check engine light displayed, engine enters reduced power mode

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    WHILE DRIVING OR IDLING, THE "CHECK ENGINE LIGHT" IS DISPLAYED. (1 more)
    Remedy
    DEALER REPLACED ACCELERATOR CONTROL MODULE.
    Outcome
    THIS DID NOT CORRECT THE PROBLEM.

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