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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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2 conditions added

Common on this vehicle:NoiseWarning lightVibration or shudderLeakShifting faultGauge or instrument faultCorrosion or rustAir conditioning or heater

Record by record

60 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 back1
  • says it did not fix it2
  • result not stated14

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 (36)

Known issues4L60-E slip or no forward engagement right after input housing replacement (service part 17803687)1

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

    Input Housing Inspection for Forward Range Slip

    1. 1Fault

      • A few transmissions may slip or have no engagement in any forward gear immediately after the Input Housing (621) is replaced.

    2. 2Finding the cause

      Possible causes

      • The Input Housing (621) from GM Service Parts may have an incorrectly drilled input shaft.

      Steps to confirm (in the document’s order)

      1. With the Input Housing (621) completely assembled, apply regulated compressed air to the 3-4 clutch feed hole and the forward clutch feed hole one at a time.
      2. Air should not leak out of the 3-4 clutch feed hole when air is applied to the forward clutch feed hole, and not out of the forward clutch feed hole when air is applied to the 3-4 clutch feed hole.

    3. 3Correction

      Repair

      • If air leaks between the two feed holes, replace the Input Housing (621) with one from GM Service Parts, ordering new housing part number 19125752.

      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.

      Parts

      • Part number 19125752, Input Housing And Turbine Shaft Assembly, quantity 1.

      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

      • This information only applies to Input Housing (621) with service part number 17803687; it does not apply to GM service transmission assemblies or original equipment transmission assemblies.
      • When testing a fully assembled housing, a small amount of air leaking between the input shaft and the housing does not indicate a defective part.
      • Do not replace an Input Housing (621) assembly solely because of a small air leak between the shaft and housing.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model list includes the 1999-2006 GMC Savana, Sierra, Yukon and Yukon XL.
    • Applies to：It applies to vehicles equipped with the 4L60E, 4L65E or 4L70E automatic transmission (RPO M30, M32 or M70) and service input housing part number 17803687.
    • Caution：This information only applies to Input Housing (621) with service part number 17803687; it does not apply to GM service transmission assemblies or original equipment transmission assemblies.
    • Condition：A few transmissions may slip or have no engagement in any forward gear immediately after the Input Housing (621) is replaced.
    • Cause：The Input Housing (621) from GM Service Parts may have an incorrectly drilled input shaft.
    • Confirm：With the Input Housing (621) completely assembled, apply regulated compressed air to the 3-4 clutch feed hole and the forward clutch feed hole one at a time.
    • Confirm：Air should not leak out of the 3-4 clutch feed hole when air is applied to the forward clutch feed hole, and not out of the forward clutch feed hole when air is applied to the 3-4 clutch feed hole.
    • Repair：If air leaks between the two feed holes, replace the Input Housing (621) with one from GM Service Parts, ordering new housing part number 19125752.
    • Caution：When testing a fully assembled housing, a small amount of air leaking between the input shaft and the housing does not indicate a defective part.
    • Caution：Do not replace an Input Housing (621) assembly solely because of a small air leak between the shaft and housing.
    • Parts：Part number 19125752, Input Housing And Turbine Shaft Assembly, quantity 1.

    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 slip in forward ranges immediately after replacing the input housing. Technician will inspect the 3-4 clutches and the forward clutch oil feed passages for leakage between circuits. Technician should apply regulated compressed air to the 3-4 clutch feed hole and the forward clutch feed hole one at a time with the input housing. Technician will need to replace the input housing if there is an air leak 3-4 clutches.

Known issues4L80-E / 4L85-E planetary gear whine in first and second gear1

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

    Planetary Gear Whine Noise in First and Second Gear

    1. 1Fault

      • The 4L80E/4L85E automatic transmission may have a planetary gear whine noise in first and second gear, typically louder in first gear than in second.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. If the noise is judged abnormal and the transmission was built after 9-01-03, perform the Rear Unit End Play Check (SI Document ID # 52027).
      2. The correct end play is between 0.127-0.508 mm (0.005-0.020 in).

    3. 3Correction

      Repair

      1. If end play is out of specification, inspect and replace the output planetary gear set (661 - Output Carrier Assembly and 650 - Sun Gear) as necessary.
      2. Set the rear end play with the correct selective thrust washer (674), targeting between .010 and .015 in.
      3. If end play is within specification, replace the transmission assembly, referring to bulletin 02-07-30-029A before ordering it.

      Caution

      • This planetary gear whine can be characteristic of the 4L80E/4L85E; compare the vehicle with an identically built vehicle (same GVWR) before attempting any repairs.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 1999-2007 GMC Sierra and Yukon XL (among other listed GM trucks and vans) with the 4L80E (RPO MT1) or 4L85E (RPO MN8) transmission (note: the Yukon XL range runs to 2007).
    • Condition：The 4L80E/4L85E automatic transmission may have a planetary gear whine noise in first and second gear, typically louder in first gear than in second.
    • Caution：This planetary gear whine can be characteristic of the 4L80E/4L85E; compare the vehicle with an identically built vehicle (same GVWR) before attempting any repairs.
    • Confirm：If the noise is judged abnormal and the transmission was built after 9-01-03, perform the Rear Unit End Play Check (SI Document ID # 52027).
    • Confirm：The correct end play is between 0.127-0.508 mm (0.005-0.020 in).
    • Repair：If end play is out of specification, inspect and replace the output planetary gear set (661 - Output Carrier Assembly and 650 - Sun Gear) as necessary.
    • Repair：Set the rear end play with the correct selective thrust washer (674), targeting between .010 and .015 in.
    • Repair：If end play is within specification, replace the transmission assembly, referring to bulletin 02-07-30-029A before ordering it.

    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 may have a planetary gear whine noise in first and second gear. Technician should compare the noise to a like vehicle. Technician will need to check the build date of the transmission, if it was built after 09/01/2003 and it is determined that a vehicle has an abnormal amount of noise, perform the rear unit end play check. Technician will replace the output planetary gear set if end play is out of specification. The transmission assembly will need to be replaced if the end play is with in specification.

Known issuesGrind / ratchet noise when shifting into Park in 4LO (characteristic)1

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2018-08-20

    Light Duty Trucks: Grinding Noise in Park with 4WD Low

    1. 1Fault

      • Light duty trucks with automatic transmission and 4 wheel drive may make a grinding/ratcheting noise when the transmission is shifted into park while the transfer case is in 4 wheel drive low (4LO) range.
      • The grind/ratchet noise lasts approximately one second.

    2. 2Finding the cause

      Possible causes

      • When the transmission is shifted from drive or reverse into park with the transfer case in 4LO, the driveline unloads and turns the propeller shaft approximately 1/8 of a turn.
      • The gear reduction in the transfer case makes the transmission output shaft turn faster than the parking pawl will hold, so the parking pawl grinds/ratchets until the output shaft stops.

    3. 3Correction

      Caution

      • This should be considered characteristic of 4 wheel drive vehicles operated in 4LO.
      • Replacing transmission, transfer case and/or driveline components will not resolve the concern; shifting into park with the transfer case in the 4HI or 2HI range is recommended.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model list names GMC Yukon models, 1999 - 2019.
    • Condition：Light duty trucks with automatic transmission and 4 wheel drive may make a grinding/ratcheting noise when the transmission is shifted into park while the transfer case is in 4 wheel drive low (4LO) range.
    • Cause：When the transmission is shifted from drive or reverse into park with the transfer case in 4LO, the driveline unloads and turns the propeller shaft approximately 1/8 of a turn.
    • Cause：The gear reduction in the transfer case makes the transmission output shaft turn faster than the parking pawl will hold, so the parking pawl grinds/ratchets until the output shaft stops.
    • Condition：The grind/ratchet noise lasts approximately one second.
    • Caution：This should be considered characteristic of 4 wheel drive vehicles operated in 4LO.
    • Caution：Replacing transmission, transfer case and/or driveline components will not resolve the concern; shifting into park with the transfer case in the 4HI or 2HI range is recommended.

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

    Remedy
    This Preliminary information communicates to the dealer technician thatLight Duty Trucks equipped with automatic transmissions and 4 wheel drive may exhibit a condition of grinding/ratcheting type noise when shifting the automatic transmission into park while the transfer case is in 4 wheel drive low (4LO) range. Dealers technician's are advised this condition should be deemed a normal characteristic of 4WD low operation.

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 communication2000–2006 GMC YUKON DENALI ・ 2017-08-15

    Service Engine Soon Lamp, Misfire, and Engine Noise Information

    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.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The model list names 1999-2013 GMC Savana, Sierra and Yukon 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.

    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.

POWER TRAIN27

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2024-08-15

    Transmission Core Damage Prevention Notice

    1. 1Fault

      • GM is receiving many cracked or broken transmission cores at the remanufacturing facilities, and the damage makes them unusable for remanufacturing.

    2. 2Finding the cause

    3. 3Correction

      GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2000 to 2024 GM passenger cars, SUVs and light/medium duty trucks.
    • Condition：GM is receiving many cracked or broken transmission cores at the remanufacturing facilities, and the damage makes them unusable for remanufacturing.

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

    Remedy
    GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.

  2. Manufacturer communication2000–2006 GMC YUKON ・ 2022-10-17

    Torque Converter Bolt Removal Warning

    1. 1Fault

      • Noise from underneath a vehicle equipped with an automatic transmission.

    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 tell whether the noise is from the engine or the transmission.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：All brands and models, model years 2000 - 2021.
    • Condition：Noise from underneath a vehicle equipped with an automatic transmission.
    • Caution：Do not remove the flex plate to torque converter bolts, push the converter back toward the transmission and start the engine to tell whether the noise is 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.

  3. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2022-09-19

    Flexplate and Torque Converter Separation Warning

    1. 1Fault

      • A noise comes from underneath a vehicle equipped with an automatic transmission.
      • The technician may find that the noise comes 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 separate the torque converter from the flex plate.
      • Do not remove the flex plate to torque converter bolts, push the converter back and start the engine to tell whether the noise is from the engine or the transmission.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to GM passenger cars and trucks, model years 2000 to 2023.
    • Condition：A noise comes from underneath a vehicle equipped with an automatic transmission.
    • Condition：The technician may find that the noise comes from the bell housing area.
    • Caution：Do not separate the torque converter from the flex plate.
    • Caution：Do not remove the flex plate to torque converter bolts, push the converter back and start the engine to tell whether the noise is 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 diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the engine is started while diagnosing for noise from the engine or transmission.

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

    American Axle Manufacturing Axle Setup Information

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. If the measured pinion shim comes out near either end of the range, compare it with the shim that was removed or recheck the setup of the measuring tools.
      2. To verify side bearing preload, the total torque to turn at the pinion should rise 5 - 10 in. lbs (= 0.565–1.13 N·m) after the differential case is installed.
      3. Axle shaft end play specification is 0.012 inch (= 0.305 mm) per side; radial (up and down) is 0.002 - 0.003 inch (= 0.0508–0.0762 mm).

    3. 3Correction

      Repair

      1. On an 8.6 axle the pinion shim used or stacked behind the pinion is 0.050 inch (= 1.27 mm) at most and 0.020 inch (= 0.508 mm) at least.
      2. Set backlash to 0.003 to 0.005 inch (= 0.0762–0.127 mm) on a new ring and pinion for any AAM application, and check the gear pattern.
      3. Rule of thumb for an 8.6 inch (= 218.4 mm) axle with a 5 cut gear set: use a 0.035 inch (= 0.889 mm) pinion shim and set backlash to 0.004 inch (= 0.102 mm).
      4. Use backlash to move the pattern heel to toe, and the pinion shim to move the pattern height (crest to root).
      5. Drive pinion bearing preload is 15 - 30 in. lbs (= 1.69–3.39 N·m) with new bearings; with old bearings, check the rolling torque before disassembly and reset to only 3 - 5 in. lbs (= 0.339–0.565 N·m) above the original.
      1 more points

      Caution

      • A ring and pinion can be reused or adjusted only below 500 miles (= 804.7 km) and only if not used for towing; if the vehicle has towed anything, the gear set must be replaced.
      • A "roller coaster" or "hourglass" pattern on the bearings may be normal up to 10,000 miles (= 16,093 km) and possibly longer, because the bearings have not fully broken in.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 1999-2013 GM light duty trucks and utilities.
    • Repair：On an 8.6 axle the pinion shim used or stacked behind the pinion is 0.050 inch (= 1.27 mm) at most and 0.020 inch (= 0.508 mm) at least.
    • Confirm：If the measured pinion shim comes out near either end of the range, compare it with the shim that was removed or recheck the setup of the measuring tools.
    • Repair：Set backlash to 0.003 to 0.005 inch (= 0.0762–0.127 mm) on a new ring and pinion for any AAM application, and check the gear pattern.
    • Caution：A ring and pinion can be reused or adjusted only below 500 miles (= 804.7 km) and only if not used for towing; if the vehicle has towed anything, the gear set must be replaced.
    • Caution：A "roller coaster" or "hourglass" pattern on the bearings may be normal up to 10,000 miles (= 16,093 km) and possibly longer, because the bearings have not fully broken in.
    • Repair：Rule of thumb for an 8.6 inch (= 218.4 mm) axle with a 5 cut gear set: use a 0.035 inch (= 0.889 mm) pinion shim and set backlash to 0.004 inch (= 0.102 mm).
    • Repair：Use backlash to move the pattern heel to toe, and the pinion shim to move the pattern height (crest to root).
    • Repair：Drive pinion bearing preload is 15 - 30 in. lbs (= 1.69–3.39 N·m) with new bearings; with old bearings, check the rolling torque before disassembly and reset to only 3 - 5 in. lbs (= 0.339–0.565 N·m) above the original.
    • Confirm：To verify side bearing preload, the total torque to turn at the pinion should rise 5 - 10 in. lbs (= 0.565–1.13 N·m) after the differential case is installed.
    • Repair：Use a new pinion nut whenever the old one is removed; never reuse a used nut.
    • Confirm：Axle shaft end play specification is 0.012 inch (= 0.305 mm) per side; radial (up and down) is 0.002 - 0.003 inch (= 0.0508–0.0762 mm).

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

    Remedy
    This Preliminary Information communication provides information to the technician with the axel setup information from American Axle Manufacturing. Technician should be advised that the maximum pinion shim to be used or stacked behind the pinion is 0.050?, and the minimum pinion shim is 0.020? for an 8.6 axle. The range for available pinion depth shims for the 10.5? axle is 0.006? to 0.024?. When setting the backlash it should be set between 0.003? to 0.005? on a new ring and pinion for any American Axle Manufacturing application. The ring and pinion can be reused or adjusted if the mileage is less than 500 miles (= 804.7 km), if not used for towing. Technician should be advised that a ?roller coaster? or ?hourglass? pattern on the bearings may be normal up to 10,000 miles (= 16,093 km) and possibly longer. With a mis-machined housing you may get a heel pattern on both sides of the gear teeth at build up can generally be corrected with backlash adjustments. When setting up an 8.6? axle with a 5 cut gear set is to use a 0.035? pinion shim and set backlash to 0.004?. When using the newer 2 cut gear set also use a 0.035? pinion shim and still set backlash to 0.004?. To set the gear pattern use backlash to adjust the pattern heel to toe. Use the pinion shim to adjust the height of the pattern. The proper drive pinion bearing pre-load is from 15 - 30 inch pounds (= 1.69–3.39 N·m) with new bearings. The total torque to turn after the differential case is installed should increase 5 - 10 inch pounds (= 0.565–1.13 N·m) at the pinion. A new pinion nut must be used whenever the old one is removed. The axle shaft end play specification is 0.012? per side and the radial specification is 0.002? - 0.003?. Technician should be advised that synthetic lube can be used in all new American Axle Manufacturing axle assemblies. The new pinion seal for the 8.6? axle assembly is a two piece design.

  5. Owner complaint2001 GMC YUKON ・ 2012-06-18

    Slight grinding noise resembling brake dragging

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Fault
    I HEARD A SLIGHT GRINDING NOISE, THAT SOUNDED LIKE A BRAKE DRAGGING.
    Remedy
    I REPLACED BRAKES ALL THE WAY AROUND, AND THAT DIDN'T STOP THE NOISE. (1 more)

  6. Manufacturer communication2000–2006 GMC YUKON ・ 2008-12-18

    GMC: Transmission oil cooler line fluid leak (2000-2006)

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      GMC: FLUID LEAK FROM TRANSMISSION OIL COOLER LINES DUE TO CORROSION. ALL 2000-2006 LIGHT DUTY TRUCKS EQUIPPED WITH THE LIGHT DUTY AUTOMATIC TRANSMISSION. *PE

    Read the sentences of the record
    Remedy
    GMC: FLUID LEAK FROM TRANSMISSION OIL COOLER LINES DUE TO CORROSION. ALL 2000-2006 LIGHT DUTY TRUCKS EQUIPPED WITH THE LIGHT DUTY AUTOMATIC TRANSMISSION. *PE

  7. Owner complaint2001 GMC YUKON ・ 2008-12-12

    4-wheel drive service indicator illuminates intermittently and 4-wheel drive power lost

    1. 1Fault

      WHILE DRIVING 15 MPH (= 24.1 km/h), THE 4-WHEEL DRIVE SERVICE INDICATOR INTERMITTENTLY ILLUMINATES ON THE INSTRUMENT PANEL. (1 more)

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Fault
    WHILE DRIVING 15 MPH (= 24.1 km/h), THE 4-WHEEL DRIVE SERVICE INDICATOR INTERMITTENTLY ILLUMINATES ON THE INSTRUMENT PANEL. (1 more)
    Remedy
    THE DEALER REPLACED THE CASE SHIFT CONTROL MODULE EACH TIME THE FAILURE OCCURRED; HOWEVER, THE CONTACT BELIEVES IT SHOULD NOT FAIL EVERY 12 MONTHS.
    Inspection
    SHE TOOK THE VEHICLE TO THE DEALER AND THEY STATED THAT THE CASE SHIFT CONTROL MODULE FAILED.

  8. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2008-04-07

    Eaton Locking Differential Chatter Shudder Noise on Turns (RPO G80)

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      EATON LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS, EQUIPPED WITH A LOCKING REAR DIFFERENTIAL RPO G80. *NJ UPDATED 7/17/2008. *PE

    Read the sentences of the record
    Remedy
    EATON LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS, EQUIPPED WITH A LOCKING REAR DIFFERENTIAL RPO G80. *NJ UPDATED 7/17/2008. *PE

  9. Manufacturer communication2000–2006 GMC YUKON ・ 2007-06-15

    New Design Front Axle Side Bearing Adjusters

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      NEW DESIGN FRONT AXLE SIDE BEARING ADJUSTERS. *KB

    Read the sentences of the record
    Remedy
    NEW DESIGN FRONT AXLE SIDE BEARING ADJUSTERS. *KB

  10. Manufacturer communication2000–2006 GMC YUKON ・ 2005-11-02

    Electronic Transfer Case Unable to Complete Shift

    1. 1Fault

      Not stated

    2. 2Finding the cause

    3. 3Correction

      ELECTRONIC TRANSFER CASE UNABLE TO COMPLETE SHIFT. *TT

    Read the sentences of the record
    Remedy
    ELECTRONIC TRANSFER CASE UNABLE TO COMPLETE SHIFT. *TT

  11. Manufacturer communication2000–2002 GMC YUKON ・ 2005-10-27

    4L60E, 4L65E Replacement Valve Body Gaskets Fit Issue

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Remedy
    4L60E, 4L65E REPLACEMENT VALVE BODY GASKETS DOES NOT SEEM TO FIT. *TT

  12. Manufacturer communication2000–2002 GMC YUKON ・ 2005-09-28

    Four Wheel Drive Inoperative and 4WD Service Light Issues

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      FOUR WHEEL DRIVE INOPERATIVE AND THE 4WD SERVICE LIGHT WILL ILLUMINATE. DIAGNOSIS MAY REVEAL THAT THE ATC FUSE COULD BE OPEN, POSSIBLE DTC C0308, OR VARIOUS U CODES MAY BE SET. THE ENCODER MOTOR MAY ALSO BE SHORTED OR THE TCCM MAY BE DAMAGED. *TT

    Read the sentences of the record
    Remedy
    FOUR WHEEL DRIVE INOPERATIVE AND THE 4WD SERVICE LIGHT WILL ILLUMINATE. DIAGNOSIS MAY REVEAL THAT THE ATC FUSE COULD BE OPEN, POSSIBLE DTC C0308, OR VARIOUS U CODES MAY BE SET. THE ENCODER MOTOR MAY ALSO BE SHORTED OR THE TCCM MAY BE DAMAGED. *TT

  13. Manufacturer communication2000–2005 GMC YUKON ・ 2005-09-22

    Intermittent 4WD Light with DTC C0306 or C0308 in TCCM

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      INTERMITTENT SERVICE 4WD LIGHT COMES ON WITH DIAGNOSTIC TROUBLE CODE (DTC) C0306 OR C0308 STORED IN TCCM. *TT

    Read the sentences of the record
    Remedy
    INTERMITTENT SERVICE 4WD LIGHT COMES ON WITH DIAGNOSTIC TROUBLE CODE (DTC) C0306 OR C0308 STORED IN TCCM. *TT

  14. Manufacturer communication2000–2005 GMC YUKON ・ 2005-05-12

    Rear Axle Retainer Button Breakage Notification

    1. 1Fault

      Not stated

    2. 2Finding the cause

    3. 3Correction

      REAR AXLE RETAINER BUTTON BREAKAGE. *EH

    Read the sentences of the record
    Remedy
    REAR AXLE RETAINER BUTTON BREAKAGE. *EH

  15. Manufacturer communication2000–2002 GMC YUKON ・ 2005-05-10

    4WD Inoperative and DTC U1026 ATC Fuse Open

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      4WD INOPERATIVE AND DIAGNOSTIC TROUBLE CODE (DTC) U1026 ATC FUSE OPEN. *TT

    Read the sentences of the record
    Remedy
    4WD INOPERATIVE AND DIAGNOSTIC TROUBLE CODE (DTC) U1026 ATC FUSE OPEN. *TT

  16. Manufacturer communication2000–2005 GMC YUKON ・ 2005-04-21

    4WD Models with Noise, Vibration on Dry Pavement

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH

    Read the sentences of the record
    Remedy
    4WD MODELS WITH NOISE, VIBRATION ON DRY PAVEMENT. *EH

  17. Manufacturer communication2000–2005 GMC YUKON ・ 2005-04-20

    4L80E Output Carrier Thrust Washer Changes

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      4L80E OUTPUT CARRIER THRUST WASHER CHANGES. *TT

    Read the sentences of the record
    Remedy
    4L80E OUTPUT CARRIER THRUST WASHER CHANGES. *TT

  18. Manufacturer communication2000–2005 GMC YUKON DENALI ・ 2004-11-03

    NVG149 NP3 Transfer Case Bind or Shudder on Turns

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      NVG149 NP3 TRANSFER CASE MAY EXHIBIT A BIND OR SHUDDER ON TURNS. *TC

    Read the sentences of the record
    Remedy
    NVG149 NP3 TRANSFER CASE MAY EXHIBIT A BIND OR SHUDDER ON TURNS. *TC

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

    Flexplate bolt hole size compatibility notice

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Remedy
    REPLACEMENT FLEXPLATE MAY HAVE LARGER BOLT HOLES THAN THE ORIGINAL FLEXPLATE. *TT

  20. Manufacturer communication2000–2001 GMC YUKON ・ 2004-09-28

    Harsh TCC Apply and/or DTC P1870 Notification

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      HARSH TCC APPLY AND OR A DIAGNOSTIC TROUBLE CODE P1870. 4L80E AUTOMATIC TRANSMISSION. *TT

    Read the sentences of the record
    Remedy
    HARSH TCC APPLY AND OR A DIAGNOSTIC TROUBLE CODE P1870. 4L80E AUTOMATIC TRANSMISSION. *TT

  21. Manufacturer communication2000–2005 GMC YUKON ・ 2004-08-25

    Service interval information for rear axles

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      THE SERVICE INFORMATION AND OWNERS MANUAL DO NOT SHOW A SERVICE INTERVAL FOR THE 8.6, 9.5, 9.75, 10.5, AND 11.5 INCH (= 292.1 mm) REAR AXLES WITH OR WITHOUT G80 (LOCKING DIFFERENTIAL). *TT 2006 ALL GENERAL MOTORS LIGHT DUTY TRUCKS, VANS AND UTILITIES. *TT

    Read the sentences of the record
    Remedy
    THE SERVICE INFORMATION AND OWNERS MANUAL DO NOT SHOW A SERVICE INTERVAL FOR THE 8.6, 9.5, 9.75, 10.5, AND 11.5 INCH (= 292.1 mm) REAR AXLES WITH OR WITHOUT G80 (LOCKING DIFFERENTIAL). *TT 2006 ALL GENERAL MOTORS LIGHT DUTY TRUCKS, VANS AND UTILITIES. *TT

  22. Manufacturer communication2000–2002 GMC YUKON ・ 2004-08-23

    NVG Transfer Case Vibration/Shudder at Low Speed Turns

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      THE NVG 136 ALL WHEEL DRIVE (AWD) TRANSFER CASE AND THE 236 AND 246 NVG SELECTABLE TRANSFER CASES OPERATING IN THE AUTO MODE MAY EXHIBIT A CONDITION OF A VIBRATION/SHUDDER DURING LOW SPEED TURNS SUCH AS A PARKING LOT MANEUVER, UP TO APPROXIMATELY 5 MPH (= 8.05 km/h). *TT 3012A NOT YET RECEIVED. *TT

    Read the sentences of the record
    Remedy
    THE NVG 136 ALL WHEEL DRIVE (AWD) TRANSFER CASE AND THE 236 AND 246 NVG SELECTABLE TRANSFER CASES OPERATING IN THE AUTO MODE MAY EXHIBIT A CONDITION OF A VIBRATION/SHUDDER DURING LOW SPEED TURNS SUCH AS A PARKING LOT MANEUVER, UP TO APPROXIMATELY 5 MPH (= 8.05 km/h). *TT 3012A NOT YET RECEIVED. *TT

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

    4L60E/4L65E Intermittent Neutral Condition

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      4L60E/4L65E INTERMITTENT NEUTRAL CONDITION WHILE ACCELERATING FROM A STOP OR WHILE DRIVING. *TT 1999-2006 GM CARS, LIGHT DUTY TRUCKS AND UTILITIES. *TT

    Read the sentences of the record
    Remedy
    4L60E/4L65E INTERMITTENT NEUTRAL CONDITION WHILE ACCELERATING FROM A STOP OR WHILE DRIVING. *TT 1999-2006 GM CARS, LIGHT DUTY TRUCKS AND UTILITIES. *TT

  24. Manufacturer communication2000–2004 GMC YUKON ・ 2004-08-12

    Revised Wheel Drive Shaft Nut Torque Specification

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

    Read the sentences of the record
    Remedy
    REVISED WHEEL DRIVE SHAFT NUT TORQUE SPECIFICATION. *TT

  25. Manufacturer communication2000–2003 GMC YUKON ・ 2004-07-13

    Intermittent Transmission Downshift, Slip, Busy/Cycling TCC or Noisy Cooling Fan

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT

    Read the sentences of the record
    Remedy
    DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT

  26. Manufacturer communication2000–2004 GMC YUKON ・ 2004-07-12

    4L60E, 4L65E Intermittent Neutral from a Stop or Steady Speed

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      4L60E, 4L65E INTERMITTENT NEUTRAL FROM A STOP OR STEADY SPEED. *TT

    Read the sentences of the record
    Remedy
    4L60E, 4L65E INTERMITTENT NEUTRAL FROM A STOP OR STEADY SPEED. *TT

  27. Manufacturer communication2000–2004 GMC YUKON ・ 2004-06-04

    Forward Low Reverse Waved Steel Clutch Plate Appearance Change

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Not stated

    3. 3Correction

      4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE. *TT

    Read the sentences of the record
    Remedy
    4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE. *TT

ELECTRICAL SYSTEM2

  1. Owner complaint2001 GMC YUKON ・ 2003-04-01

    Cruise control failure and component replacements

    1. 1Fault

      Not stated

    2. 2Finding the cause

    3. 3Correction

    Read the sentences of the record
    Cause
    CRUISE CONTROL FAILURE CAUSED BY AN ABERRANT VOLTAGE ON STOP LAMP CIRCUIT.
    Remedy
    ALSO THE PCM, STARTER AND SERPENTINE BELT WAS REPLACED. *AK *JB

  2. Owner complaint2001 GMC YUKON ・ 2004-11-04

    Dashboard lights, airbag and computer malfunction

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    DASHBOARD LIGHT, AIR BAG AND COMPUTER MALFUNCTIONED. (4 more)
    Cause
    *BF THE VEHICLES COMPUTER MALFUNCTIONED CAUSING DASHBOARD LIGHTS, AIRBAG, L.E.D, AND BRAKE LIGHTS TO TURN ON.

ENGINE AND ENGINE COOLING2

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2024-02-02

    Piston Installation Procedure

    1. 1Fault

      Not stated

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      • Refer to the Engine Mechanical Specification in SI for the correct bore and piston specification.

    3. 3Correction

      Repair

      1. When installing a piston into a cylinder, use a ring compressor sleeve or equivalent for best results.
      2. Choose a sleeve with a smooth radius that tapers down to the specific bore size.
      3. Select a size only slightly bigger than the piston diameter and not larger than the cylinder bore diameter.

      Caution

      • If a sleeve is unavailable in the needed size, a universal ring compressor will work but is more difficult to use.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies to 2024 and earlier GM passenger cars and trucks.
    • Repair：When installing a piston into a cylinder, use a ring compressor sleeve or equivalent for best results.
    • Repair：Choose a sleeve with a smooth radius that tapers down to the specific bore size.
    • Repair：Select a size only slightly bigger than the piston diameter and not larger than the cylinder bore diameter.
    • Confirm：Refer to the Engine Mechanical Specification in SI for the correct bore and piston specification.
    • Caution：If a sleeve is unavailable in the needed size, a universal ring compressor will work but is more difficult to use.

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

    Remedy
    This PI bulletin advises the technician on the proper way to install the pistons in an engine.

  2. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2023-09-26

    Normal Transmission Shift and Throttle Response Delay

    1. 1Fault

      • A sag or hesitation may be noticed when coasting at low speeds of less than 24 km/h (15 mph) with a closed throttle and then aggressively applying the throttle.
      • With an automatic transmission, after a hard complete stop with a closed throttle immediately followed by an aggressive throttle opening, the downshifts may not be completed by the time the throttle is opened.
      • A sag or hesitation may also be noticed while cruising at highway speeds and then aggressively increasing the throttle, forcing a down-shift.

    2. 2Finding the cause

      Possible causes

      • In this maneuver the throttle blade is opened slowly for up to 0.7 seconds, even though the accelerator is applied aggressively, to help minimize driveline lash and clunking.
      • As a result, approximately 0.5 seconds of zero torque may be commanded to allow the shift to first gear to occur.

    3. 3Correction

      Caution

      • All of these conditions are a result of Torque Management and should be considered normal; no repairs should be attempted.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：GM passenger cars and trucks, model years 2000 to 2024.
    • Condition：A sag or hesitation may be noticed when coasting at low speeds of less than 24 km/h (15 mph) with a closed throttle and then aggressively applying the throttle.
    • Cause：In this maneuver the throttle blade is opened slowly for up to 0.7 seconds, even though the accelerator is applied aggressively, to help minimize driveline lash and clunking.
    • Condition：With an automatic transmission, after a hard complete stop with a closed throttle immediately followed by an aggressive throttle opening, the downshifts may not be completed by the time the throttle is opened.
    • Cause：As a result, approximately 0.5 seconds of zero torque may be commanded to allow the shift to first gear to occur.
    • Condition：A sag or hesitation may also be noticed while cruising at highway speeds and then aggressively increasing the throttle, forcing a down-shift.
    • Caution：All of these conditions are a result of Torque Management and should be considered normal; no repairs should be attempted.

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

    Remedy
    The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.

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.

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