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GMC Yukon XL 2000–2006

GMC Yukon XLModel 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 lightLoss of engine power, no accelerationStalls or shuts offMisfire or rough idleLeakNoiseGauge or instrument faultDoes not start

Record by record

15 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 (11)

Known issuesSingle-cylinder misfire (P0300-P0308) and/or chirp, squeak or tick at camshaft speed: worn cam lobe / lifter, valve or valve spring3

  1. Manufacturer communication2002–2006 GMC YUKON XL DENALI ・ 2023-05-06(3 earlier editions of this document folded here)

    Diagnostic tip: valve, lifter or camshaft issue

    1. 1Fault

      • Misfire, chirp, squeak, squeal or tick noise, or MIL illuminated.
      • DTCs P0300 (engine misfire detected) and P0301 through P0308 (misfire detected on cylinders 1 through 8) are listed.

    2. 2Finding the cause

      Possible causes

      • Possible causes: worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, or a collapsed AFM lifter.

      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 the rocker changes the noise, a lifter and/or cam lobe concern on that cylinder is most likely.
      3. Disconnect the coils and injectors on one bank, run the engine with that valve cover removed, back off the rocker arm a couple of turns and listen for a change in the noise.
      4. Measure cam lobe lift at the pushrod side of the rocker arm and compare with other rockers on the same bank; the misfiring or ticking cylinder should have clearly less lift.
      5. A good indicator of a sticking valve is misfires that keep counting on an aggressive deceleration with engine braking.
      1 more points

    3. 3Correction

      Repair

      • If a worn camshaft lobe or lifter roller is found, replace the camshaft and all lifters, and the plastic lifter guide for the affected lifter.

      Caution

      • A damaged cam lobe is easy to overlook through the lifter bores, and unworn lifter rollers do not mean the cam lobes are okay; inspect both carefully.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to GM passenger cars and trucks, 2002 through 2023, with V6/V8 pushrod engines.
    • Condition：Misfire, chirp, squeak, squeal or tick noise, or MIL illuminated.
    • Condition：DTCs P0300 (engine misfire detected) and P0301 through P0308 (misfire detected on cylinders 1 through 8) are listed.
    • Confirm：A verified noise is not eliminated by canceling fuel injectors and occurs at camshaft speed (half of crankshaft speed).
    • Cause：Possible causes: worn camshaft lobe and/or lifter roller, a sticking valve, valve leakage, a broken valve spring, or a collapsed AFM lifter.
    • Confirm：If applying pressure to the valve side of the rocker changes the noise, a lifter and/or cam lobe concern on that cylinder is most likely.
    • Confirm：Disconnect the coils and injectors on one bank, run the engine with that valve cover removed, back off the rocker arm a couple of turns and listen for a change in the noise.
    • Confirm：Measure cam lobe lift at the pushrod side of the rocker arm and compare with other rockers on the same bank; the misfiring or ticking cylinder should have clearly less lift.
    • Caution：A damaged cam lobe is easy to overlook through the lifter bores, and unworn lifter rollers do not mean the cam lobes are okay; inspect both carefully.
    • Repair：If a worn camshaft lobe or lifter roller is found, replace the camshaft and all lifters, and the plastic lifter guide for the affected lifter.
    • Confirm：A good indicator of a sticking valve is misfires that keep counting on an aggressive deceleration with engine braking.
    • Confirm：A broken valve spring may stay stacked together and be hard to see; lightly push on different places on the springs with a small hammer handle.

    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 XL ・ 2017-08-15(1 earlier editions of this document folded here)

    Engine Misfire and Service Engine Soon Lamp Information

    1. 1Fault

      • With the SES light on, a P0300-P0308 DTC is found with misfires counting on a single cylinder, which may or may not be felt.
      • The noise may be described as a chirp, squeak, squeal or tick and may increase off of idle.

    2. 2Finding the cause

      Possible causes

      • A worn cam lobe on this engine family generally makes 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. Press on the rocker arms with a wooden hammer handle while the noise is present; if pressing the valve side of a rocker changes the noise, a lifter and/or cam lobe concern on that cylinder is most likely.
      2. Measure cam lobe lift at the push rod side of the rocker arm; it will differ from the SI specification but should be similar to the other rockers on the same bank.
      3. A bore scope or pen light may help when inspecting the cam lobes through the lifter bores.
      4. A good sign of a sticking valve is that misfires keep counting during an aggressive deceleration with engine braking.
      5. The Cylinder Leakage Test in SI should typically isolate valve leakage by showing excessive leakage past an intake or exhaust valve compared with the others.
      1 more points

    3. 3Correction

      Repair

      1. If a worn cam lobe or lifter roller is found, replace the camshaft and all lifters per SI, plus the plastic lifter guide for the affected lifter (for the 2010 model year, all the plastic lifter guides).
      2. If force is needed to tap the valve off its seat, there is excessive carbon build up, which may be repaired by decarboning the engine.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 1999-2013 GMC Savana, Sierra and Yukon (with a V8 engine per the model list) (note: the Yukon years run later than the years this service covers).
    • Condition：With the SES light on, a P0300-P0308 DTC is found with misfires counting on a single cylinder, which may or may not be felt.
    • Condition：The noise may be described as a chirp, squeak, squeal or tick and may increase off of idle.
    • Cause：A worn cam lobe on this engine family generally makes a consistent chirp, squeak, squeal or tick at camshaft speed and/or a misfire with a P0300-P0308 DTC.
    • Confirm：Press on the rocker arms with a wooden hammer handle while the noise is present; if pressing 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 will differ from the SI specification but should be similar to the other rockers on the same bank.
    • Confirm：A bore scope or pen light may help when inspecting the cam lobes through the lifter bores.
    • Repair：If a worn cam lobe or lifter roller is found, replace the camshaft and all lifters per SI, plus the plastic lifter guide for the affected lifter (for the 2010 model year, all the plastic lifter guides).
    • Confirm：A good sign of a sticking valve is that misfires keep counting during an aggressive deceleration with engine braking.
    • Repair：If force is needed to tap the valve off its seat, there is excessive carbon build up, which may be repaired by decarboning the engine.
    • Confirm：The Cylinder Leakage Test in SI should typically isolate valve leakage by showing excessive leakage past an intake or exhaust valve compared with the others.
    • Confirm：The two pieces of a broken valve spring can stay stacked together and be hard to see, so lightly push on different places on the springs with a small hammer handle.

    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.

  3. Manufacturer communication2000–2006 GMC YUKON XL ・ 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.

ENGINE AND ENGINE COOLING4

  1. Manufacturer communication2001–2006 GMC YUKON XL ・ 2018-06-04

    Engine Squealing Type Noise on Start-up or Vibration

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • Inspect the crankshaft balancer for an outer ring slipping on the center hub; if found, replace the crankshaft balancer.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to the listed models equipped with the 3.5L or 3.9L engine (RPOs LZ4, LZE, LZ8, LGD, LZ9, LZG, LX9).
    • Repair：Inspect the crankshaft balancer for an outer ring slipping on the center hub; if found, replace the crankshaft balancer.

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

    Remedy
    This informational bulletin provides information for Engine Squealing Type Noise on Start-up or Vibration Condition.

  2. Manufacturer communication2005 GMC YUKON XL ・ 2005-10-25

    Lower end engine knock noise notification

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      LOWER END ENGINE KNOCK NOISE. *SC

    Read the sentences of the record
    Remedy
    LOWER END ENGINE KNOCK NOISE. *SC

  3. Manufacturer communication2005 GMC YUKON XL ・ 2005-09-21

    Engine Knock Noise Heard at All Times

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      ENGINE KNOCK NOISE HEARD AT ALL TIMES. *TT

    Read the sentences of the record
    Remedy
    ENGINE KNOCK NOISE HEARD AT ALL TIMES. *TT

  4. Manufacturer communication2001 GMC YUKON XL ・ 2001-11-19

    Drive Belt Noise Communication

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      SUBJECT REGARDING DRIVE BELT NOISE. *YH

    Read the sentences of the record
    Remedy
    SUBJECT REGARDING DRIVE BELT NOISE. *YH

ENGINE3

  1. Manufacturer communication2000–2006 GMC YUKON XL ・ 2019-06-10

    Torque Converter Bolt Removal Warning

    1. 1Fault

      • Customers may comment on noise coming from underneath a vehicle equipped with an automatic transmission.
      • Technicians may find that the noise is coming from the bell housing area.

    2. 2Finding the cause

      Possible causes

      • Running the engine with those bolts removed may damage the pilot on the front of the torque converter, the pilot hole in the end of the crankshaft, or both.

      Steps to confirm (in the document’s order)

      • Use chassis ears to isolate the component or assembly that is the loudest source of the noise.

    3. 3Correction

      Caution

      • Do not remove the flex plate to torque converter bolts, push the converter back toward the transmission and start the engine to decide whether the noise comes from the engine or the transmission.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model table lists all brands and models, model years 2000 - 2019.
    • Condition：Customers may comment on noise coming from underneath a vehicle equipped with an automatic transmission.
    • Condition：Technicians may find that the noise is coming from the bell housing area.
    • Caution：Do not remove the flex plate to torque converter bolts, push the converter back toward the transmission and start the engine to decide whether the noise comes from the engine or the transmission.
    • Cause：Running the engine with those bolts removed may damage the pilot on the front of the torque converter, the pilot hole in the end of the crankshaft, or both.
    • Confirm：Use chassis ears to isolate the component or assembly that is the loudest source of the noise.

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

    Remedy
    This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.

  2. Owner complaint2000 GMC YUKON XL ・ 2017-12-20

    Vehicle stalls while driving at 55 MPH with sputtering noise

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3CorrectionNot repaired

      THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED.

    Read the sentences of the record
    Fault
    WHILE DRIVING 55 MPH (= 88.5 km/h), THE VEHICLE MADE A SPUTTERING NOISE AND STALLED. (1 more)
    Remedy
    THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED.

  3. Owner complaint2005 GMC YUKON XL ・ 2013-05-15

    Flapping noise from exhaust and exhaust fumes in cabin

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    THE CONTACT STATED THAT THERE WAS A FLAPPING NOISE THAT CAME FROM THE EXHAUST. (1 more)
    Inspection
    THE VEHICLE WAS TAKEN TO THE DEALER, WHERE THEY DETERMINED THAT THE MANIFOLD BOLTS WERE CORRODED FRACTURED.

ELECTRICAL SYSTEM1

  1. Owner complaint2004 GMC YUKON XL ・ 2005-03-30

    Power side seat moves forward while driving

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    WHILE DRIVING, THE DRIVER'S POWER SIDE SEAT BEGINS TO MOVE FORWARD.

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