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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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2 conditions added

Common on this vehicle:Gauge or instrument faultLeakStalls or shuts offWarning lightCorrosion or rustMisfire or rough idleDoes not startSmoke or fire

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8 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

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 (3)

FUEL SYSTEM, GASOLINE2

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2021-04-19(1 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.

  2. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2018-05-21(1 earlier editions of this document folded here)

    E85 Fuel Effects on Non-E85 Vehicles Information

    1. 1Fault

      • Using this fuel in a non-compatible vehicle may cause lean driveability concerns such as hesitation, sag and/or possible stalling.
      • Fuel trim DTC P0171 and/or P0174 may set.
      • Misfire DTC P0300 may set.
      • A Traction Control, Stability System or ABS lamp may illuminate, or a message may display in the DIC (if equipped).
      • Harsh and/or firm transmission shifts may occur because the transmission defaults to maximum line pressure.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. Alcohol content is checked using Special Tool J-44175-A Fuel Composition Tester or CH-44175-A Fuel Composition Tester.
      2. General Motors started putting yellow gas caps on E85 Flex Fuel Vehicles (FFVs) as of Model Year 2006.

    3. 3Correction

      Repair

      • If the ethanol content exceeds the Owner Manual maximum of 10% or 15%, drain the fuel and refill the vehicle with gasoline, preferably a Top Tier brand.

      Caution

      • All Model Year 2011 and older non-FFV gasoline vehicles are designed to run on fuel containing no more than 10% ethanol.
      • Diesel engines are not E85 compatible.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The list of compatible flexible-fuel vehicles includes 2002–2005 fullsize pickups and utilities with 5.3L, RPO L59.
    • Applies to：The list of compatible flexible-fuel vehicles includes 2006 Sierra, Yukon and Yukon XL with 5.3L, RPO L59.
    • Caution：All Model Year 2011 and older non-FFV gasoline vehicles are designed to run on fuel containing no more than 10% ethanol.
    • Caution：Diesel engines are not E85 compatible.
    • Condition：Using this fuel in a non-compatible vehicle may cause lean driveability concerns such as hesitation, sag and/or possible stalling.
    • Condition：Fuel trim DTC P0171 and/or P0174 may set.
    • Condition：Misfire DTC P0300 may set.
    • Condition：A Traction Control, Stability System or ABS lamp may illuminate, or a message may display in the DIC (if equipped).
    • Condition：Harsh and/or firm transmission shifts may occur because the transmission defaults to maximum line pressure.
    • Confirm：Alcohol content is checked using Special Tool J-44175-A Fuel Composition Tester or CH-44175-A Fuel Composition Tester.
    • Repair：If the ethanol content exceeds the Owner Manual maximum of 10% or 15%, drain the fuel and refill the vehicle with gasoline, preferably a Top Tier brand.
    • Confirm：General Motors started putting yellow gas caps on E85 Flex Fuel Vehicles (FFVs) as of Model Year 2006.

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

    Remedy
    This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.

ENGINE1

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2024-07-16(3 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.

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