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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 lightNoiseLoss of engine power, no accelerationMisfire or rough idleLeakGauge or instrument faultStalls or shuts offDoes not start

Record by record

36 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 held for a while1
  • says it came back1
  • says it did not fix it4
  • result not stated6

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 (31)

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 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 communication2002–2006 GMC YUKON DENALI ・ 2018-11-13(2 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.

  3. 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 issuesParking brake linings worn out prematurely, parking brake does not hold (PBR single-shoe drum-in-hat)1

  1. Owner complaint2000 GMC YUKON ・ 2002-05-02

    Parking brake ineffective, engine knock, seat and suspension issues

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    MY PARKING/EMERGENCY BRAKE GOES ALL THE WAY TO THE FLOOR AND DOES NOT HOLD MY VEHICLE ON EVEN THE SLIGHTEST GRADE. (5 more)
    Remedy
    MY REAR END WHEEL BEARING WERE REPLACED BECAUSE OF A LOUD HUM. (1 more)

ENGINE AND ENGINE COOLING22

  1. Owner complaint2002 GMC YUKON DENALI ・ 2003-06-11

    Intermittent noise from right rear of vehicle; returned after exhaust system change

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    CONSUMER NOTICED A NOISE COMING FROM RIGHT REAR OF VEHICLE INTERMITTENTLY.
    Remedy
    DEALER WAS CONTACTED, AND CHANGED THE EXHAUST SYSTEM.
    Outcome
    NOISE STOPPED FOR A WHILE, BUT RETURNED. *AK

  2. Manufacturer communication2006 GMC YUKON ・ 2019-09-16

    Low or No Oil Pressure and Engine Noise Service Information

    1. 1Fault

      • Customers may complain of low oil pressure, no oil pressure and/or engine noise, possibly with P0521, which may result from a sticking oil pump pressure relief valve.
      • It may be intermittent if the valve frees up when the engine cools down.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      1. If SI diagnosis isolates low mechanical oil pressure at the oil filter housing and oil pressure sensor, replace the oil pump and flush the oil cooler lines (if equipped).
      2. Clean the inside of the oil pan, change the oil and filter, and re-evaluate the concern.

      Caution

      • If an engine noise is noticed after replacing the oil pump, follow the SI diagnosis and repair the engine as necessary.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to the 2006 - 2014 GMC Yukon (note: the years run later than the years this service covers).
    • Applies to：These aluminum V8 engine RPOs are covered: L76, L77, L92, L94, L99, L9H, LC9, LH6, LH8, LH9, LMG, LS2, LS3, LS4, LS7, LS9, LSA, LZ1.
    • Condition：Customers may complain of low oil pressure, no oil pressure and/or engine noise, possibly with P0521, which may result from a sticking oil pump pressure relief valve.
    • Condition：It may be intermittent if the valve frees up when the engine cools down.
    • Repair：If SI diagnosis isolates low mechanical oil pressure at the oil filter housing and oil pressure sensor, replace the oil pump and flush the oil cooler lines (if equipped).
    • Repair：Clean the inside of the oil pan, change the oil and filter, and re-evaluate the concern.
    • Caution：If an engine noise is noticed after replacing the oil pump, follow the SI diagnosis and repair the engine 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 about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines.

  3. Manufacturer communication2001–2006 GMC YUKON DENALI ・ 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.

  4. 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

  5. Manufacturer communication2006 GMC YUKON ・ 2007-02-22

    Rear Differential Whine/Howl Noise (8.6 Rear Axle)

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      WHINE HOWL NOISE FROM THE REAR DIFFERENTIAL ON VEHICLES EQUIPPED WITH AN 8.6 REAR AXLE. *KB

    Read the sentences of the record
    Remedy
    WHINE HOWL NOISE FROM THE REAR DIFFERENTIAL ON VEHICLES EQUIPPED WITH AN 8.6 REAR AXLE. *KB

  6. Owner complaint2006 GMC YUKON ・ 2006-12-05

    Clunking noise when turning wheel, vibration at 65 MPH and more

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    2006 YUKON MAKES A CLUNKING NOISE WHEN TURNING THE WHEEL, VIBRATION IS ALSO NOTICED WHEN DRIVING 65 MPH (= 104.6 km/h). (5 more)
    Remedy
    THE VEHICLE WAS RETURNED AND THEY REPLACED THE RIGHT FRONT TIRE WHICH THEY CLAIMED WAS DEFECTIVE FROM THE FACTORY. (5 more)
    Inspection
    THE VEHICLE WAS TAKEN TO SERVICE DEALER WHO DETERMINED THAT THE UPPER AND LOWER CONTROL ARMS NEEDED TO BE REPLACED. (1 more)

  7. Owner complaint2003 GMC YUKON ・ 2006-10-15

    Engine ticking on startup lasting 5 minutes, longer on cold starts

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    ENGINE TICKING ON STARTUP, LASTS FOR 5 MINUTES CURRENTLY - LONGER ON COLD STARTS OR AFTER LETTING THE CAR SIT OVERNIGHT.
    Cause
    THIS PISTON "SLAP" NOISE DESCRIBED APPEARS TO BE MANUFACTURER DEFECT IN 5.3 LITER ENGINE WHERE SHIPMENT OF ENGINES WITH CYLINDER HEADS THAT ARE OVERSIZED OR PISTONS SHIPPING AS UNDERSIZED IS CAUSING WARPING ON PISTON HEAD, HENCE THE REASON WHY THE NOISE PROGRESSIVLY GETS LOUDER AND LONGER LASTING AS TIME PROGRESSES.

  8. Manufacturer communication2004 GMC YUKON ・ 2005-02-14

    Engine vibration/noise at idle, rough idle, steering wheel shake notification

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      ENGINE VIBRATION/NOISE AT IDLE, ROUGH IDLE, STEERING WHEEL SHAKE. *TT

    Read the sentences of the record
    Remedy
    ENGINE VIBRATION/NOISE AT IDLE, ROUGH IDLE, STEERING WHEEL SHAKE. *TT

  9. Manufacturer communication2000–2004 GMC YUKON ・ 2004-10-14

    Engine Tick, Rattle or Knock Noise After Cylinder Head Gasket Replacement

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      ENGINE TICK, RATTLE OR KNOCK NOISE AFTER CYLINDER HEAD GASKET REPLACEMENT ON THE 6.0L ENGINE. *TT

    Read the sentences of the record
    Remedy
    ENGINE TICK, RATTLE OR KNOCK NOISE AFTER CYLINDER HEAD GASKET REPLACEMENT ON THE 6.0L ENGINE. *TT

  10. Manufacturer communication2001–2004 GMC YUKON ・ 2004-10-04

    Whistle Noise from Throttle Body on GEN III Electronic Throttle Engines

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      WHISTLE NOISE FROM THE THROTTLE BODY AREA ON LIGHT THROTTLE ACCELERATION ON VEHICLES WITH GEN III ENGINES AND ELECTRONIC THROTTLE. *TT

    Read the sentences of the record
    Remedy
    WHISTLE NOISE FROM THE THROTTLE BODY AREA ON LIGHT THROTTLE ACCELERATION ON VEHICLES WITH GEN III ENGINES AND ELECTRONIC THROTTLE. *TT

  11. Manufacturer communication2000–2003 GMC YUKON ・ 2004-02-28

    Engine Whistle Noise

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      ENGINE WHISTLE NOISE. *TT

    Read the sentences of the record
    Remedy
    ENGINE WHISTLE NOISE. *TT

  12. Owner complaint2003 GMC YUKON ・ 2004-02-19

    Piston slap noise on cold start in 5.3L engine

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    THE NOISE IS VERY LOUD WHEN THE ENGINE IS COLD BUT AFTER A PERIOD OF 10-15 MINUTES THE NOISE GOES AWAY.
    Cause
    THE CONSUMER INDICATED THAT GMC MANUFACTURED A LARGE NUMBER OF 5.3 LITER ENGINES WITH EITHER UNDER SIZED PISTONS OR OVER SIZED COMBUSTION CYLINDERS WHICH RESULTED IN PISTON SLAP.

  13. Manufacturer communication2000–2004 GMC YUKON ・ 2003-11-20

    GEN III Engine Noise After Hot Soak Restart

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      GEN III ENGINE NOISE AFTER HOT SOAK RESTART. *TT

    Read the sentences of the record
    Remedy
    GEN III ENGINE NOISE AFTER HOT SOAK RESTART. *TT

  14. Manufacturer communication2001–2003 GMC YUKON ・ 2003-04-28

    Accessory Drive Belt Whine

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      ACCESSORY DRIVE BELT WHINE. *TT

    Read the sentences of the record
    Remedy
    ACCESSORY DRIVE BELT WHINE. *TT

  15. Manufacturer communication2000–2003 GMC YUKON ・ 2003-03-29

    Engine Knock or Lifter Noise Service Communication

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      ENGINE KNOCK OR LIFTER NOISE. *TT

    Read the sentences of the record
    Remedy
    ENGINE KNOCK OR LIFTER NOISE. *TT

  16. Owner complaint2001 GMC YUKON ・ 2002-03-05

    Engine knocking noise and sluggish performance when cold

    1. 1Fault

    2. 2Finding the cause

      *AK CONSUMER STATES THE ENGINE HAS PISTON PROBLEMS.*YH

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    WHEN VEHICLE IS COLD ENGINE MAKES A KNOCKING NOISE AND IS SLUGGISH. (1 more)
    Cause
    *AK CONSUMER STATES THE ENGINE HAS PISTON PROBLEMS.*YH

  17. Manufacturer communication2001 GMC YUKON ・ 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

  18. Manufacturer communication2000 GMC YUKON ・ 2001-03-24

    Customer Complaint of Whistle and Wind Noise

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      SUBJECT REGARDING CUSTOMER COMPLAINT OF WHISTLE AND WIND RUSH OR FLUTTER TYPE NOISE. *TT

    Read the sentences of the record
    Remedy
    SUBJECT REGARDING CUSTOMER COMPLAINT OF WHISTLE AND WIND RUSH OR FLUTTER TYPE NOISE. *TT

  19. Owner complaint2005 GMC YUKON DENALI ・ 2011-08-30

    Exhaust manifold studs rattling out and breaking

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    I HAD 3 STUDS RATTLE OUT, 2 BREAK OFF INSIDE HEAD GASKET AND ONLY 1 REMAIN IN TACT.

  20. Owner complaint2002 GMC YUKON ・ 2004-06-09

    Loud knocking noise from front while driving

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    WHILE DRIVING A LOUD KNOCKING NOISE WAS HEARD FROM THE FRONT.
    Inspection
    CONSUMER WAS ABLE TO DRIVE THE VEHICLE TO DEALER FOR INSPECTION, AND MECHANIC DETERMINED THAT A CARBON BUILD UP ON THE PISTON CAUSED THE KNOCKING. *AK

  21. Owner complaint2002 GMC YUKON ・ 2003-12-31

    Defective engine with piston knock at 19,500 miles

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

  22. Owner complaint2001 GMC YUKON DENALI ・ 2002-11-01

    Serpentine belt coming apart repeatedly while driving

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    WHILE DRIVING, THEIR WAS A NOISE FROM UNDER THE HOOD.
    Inspection
    CONSUMER TOOK VEHCILE TO THE DEALERSHIP AN D THEY INDICATED THAT THE SERPENTINE BELT HAD CAME APART. (1 more)

ENGINE3

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 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 complaint2004 GMC YUKON DENALI ・ 2013-07-29

    Ticking noise from engine compartment on start up

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    UPON START UP OF VEHICLE, A TICKING NOISE WAS HEARD FROM THE ENGINE COMPARTMENT.
    Cause
    UPON INVESTIGATION ON THE INTERNET, THIS IS A VERY COMMON ISSUE WITH THE GM 6.0 LITER AND OTHER ENGINES.
    Inspection
    UPON INSPECTION, FOUND THAT THE LEFT REAR EXHAUST BOLT ON THE EXHAUST MANIFOLD HAD BROKEN OFF CAUSING EXHAUST LEAK.

  3. Owner complaint2006 GMC YUKON DENALI ・ 2013-03-02

    Noise from driver's side, manifold head bolts broken

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

ELECTRICAL SYSTEM1

  1. Owner complaint2001 GMC YUKON ・ 2003-06-12

    Serpentine belt replaced twice, alternator replaced, squealing noise still occurs on startup

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

VEHICLE SPEED CONTROL1

  1. Manufacturer communication2003–2004 GMC YUKON ・ 2004-07-08

    Buzz Noise and Vibration in Accelerator Pedal at Approximately 10 MPH on Start Up

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      BUZZ NOISE AND VIRBATION IN THE ACCELERATOR PEDAL AT APPROX. 10 MPH (= 16.1 km/h) ON START UP. *MJ

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    Remedy
    BUZZ NOISE AND VIRBATION IN THE ACCELERATOR PEDAL AT APPROX. 10 MPH (= 16.1 km/h) ON START UP. *MJ

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5 owner complaints have no classified sentences yet, so their causes and repairs are not picked out. Their text is in the list of records.