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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:Lights (headlights, turn signals)Gauge or instrument faultSmoke or fireLeakNoiseWarning lightCorrosion or rustAir conditioning or heater

Record by record

3 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

  • result not stated8

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)

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 ・ 2018-02-21

    Engine Misfire and Related Issues Notice

    1. 1Fault

      • With the SES light on, a P0300-P0308 DTC is found with misfires counting on a single cylinder that 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); it may be a chirp, squeak, squeal or tick and may increase off idle.

    2. 2Finding the cause

      Possible causes

      • When 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 valve side, push rod side and side of each rocker arm; if pressure on the valve side changes the noise, it is most likely a lifter and/or cam lobe concern on that cylinder.
      2. Measure cam lobe lift at the push rod side of the rocker arm and compare with other rockers on the same bank; the misfiring or ticking cylinder should have clearly less lift if a lifter roller and/or cam lobe is worn.
      3. A good indicator of a sticking valve is misfires that continue to count on an aggressive deceleration with engine braking.
      4. For a suspected sticking valve, snap the valve onto its seat and confirm it comes off easily; if force is needed to tap it off the seat, excessive carbon build up exists, which may be repaired by decarboning the engine.
      5. The Cylinder Leakage Test outlined in SI should isolate valve leakage by finding excessive leakage past an intake or exhaust valve compared with the others.
      1 more points

    3. 3Correction

      Repair

      • If a worn camshaft lobe or lifter roller is found, replace the camshaft and all lifters per SI, and also replace the plastic lifter guide for the lifter that had the damage.

      Caution

      • A worn cam lobe is easy to overlook through the lifter bores, and unworn lifter rollers do not mean the related cam lobes are okay; both must be carefully inspected.
      • 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：The model list names GMC Yukon models, 2002 - 2014, with a V8 engine.
    • Condition：With the SES light on, a P0300-P0308 DTC is found with misfires counting on a single cylinder that 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); it may be a chirp, squeak, squeal or tick and may increase off idle.
    • Cause：When 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 valve side, push rod side and side of each rocker arm; if pressure on the valve side changes the noise, it is most likely a lifter and/or cam lobe concern on that cylinder.
    • Confirm：Measure cam lobe lift at the push rod side of the rocker arm and compare with other rockers on the same bank; the misfiring or ticking cylinder should have clearly less lift if a lifter roller and/or cam lobe is worn.
    • Confirm：A good indicator of a sticking valve is misfires that continue to count on an aggressive deceleration with engine braking.
    • Confirm：For a suspected sticking valve, snap the valve onto its seat and confirm it comes off easily; if force is needed to tap it off the seat, excessive carbon build up exists, which may be repaired by decarboning the engine.
    • Confirm：The Cylinder Leakage Test outlined in SI should isolate valve leakage by finding excessive leakage past an intake or exhaust valve compared with the others.
    • Confirm：A broken valve spring may stay stacked together and be hard to see, so lightly push on different places on the springs with a small hammer handle.
    • Repair：If a worn camshaft lobe or lifter roller is found, replace the camshaft and all lifters per SI, and also replace the plastic lifter guide for the lifter that had the damage.
    • Caution：A worn cam lobe is easy to overlook through the lifter bores, and unworn lifter rollers do not mean the related cam lobes are okay; both must be carefully inspected.
    • 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.

AIR BAGS1

  1. Owner complaint2005 GMC YUKON DENALI ・ 2015-12-10

    Airbag error lights and multiple electrical failures

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    THE AIRBAG ERROR LIGHTS ARE ON. (5 more)
    Inspection
    MECHANIC SAYS THE FRONT AIRBAG SENSORS WENT BAD.

EXTERIOR LIGHTING1

  1. Owner complaint2001 GMC YUKON ・ 2005-12-07

    Steering, suspension, and transfer case problems

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    THE CONSUMER EXPERIENCED VARIOUS STEERING, SUSPENSION AND TRANSFER CASE PROBLEMS WITH HER 2001 GMC YUKON. (3 more)
    Remedy
    THE DEALER REPLACED THE HOUSING AND ELEMENT. (5 more)
    Inspection
    THE DEALER DETERMINED THAT THE TRANSFER CASE CHAIN HAD STRETCHED.