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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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Common on this vehicle:Noise

issue4L80-E / 4L85-E planetary gear whine in first and second gearRemove

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3 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

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Known issues4L80-E / 4L85-E planetary gear whine in first and second gear3

  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.

  2. Manufacturer communication2002 GMC CHEVROLET AND GMC C/K MODELS AND 2002 CADILLAC ESCALADE WITH 4.3L, 4.8L 5.3L OR 6.0L GAS ENGINE (YUKON) ・ 2002-01-01

    1-2, 2-3, or 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission (bulletin 01-07-30-031)

    1. 1Fault

      • 1-2, 2-3, or 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Bulletins – December 2001 01-07-30-031; 1-2, 2-3, or 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission; 2002-2002 Chevrolet and GMC C/K Models and 2002 Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine (VINs W, V, T, U -- RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E Transmission 1-2, 2-3, or 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission

      What the documents say to do

      4L80-E / 4L85-E planetary gear whine in first and second gear

      Confirm

      • Compare the vehicle with an identically built vehicle (same GVWR) before attempting any repairs.

      Repair

      1. If end play is out of specification, inspect and replace the output planetary gear set as necessary.
      2. If end play is within specification, replace the transmission assembly.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 01-07-30-031 lists "2002-2002 Chevrolet and GMC C/K Models and 2002 Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine" (VINs W, V, T, U; RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E transmission.
    • Condition：1-2, 2-3, or 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – December 2001 01-07-30-031; 1-2, 2-3, or 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission; 2002-2002 Chevrolet and GMC C/K Models and 2002 Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine (VINs W, V, T, U -- RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E Transmission 1-2, 2-3, or 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission

  3. Manufacturer communication2000 GMC CHEVROLET AND GMC C/K MODELS AND CADILLAC ESCALADE WITH 4.3L, 4.8L 5.3L OR 6.0L GAS ENGINE (YUKON) ・ 2002-01-01

    2-3, 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission (bulletin 01-07-30-013A)

    1. 1Fault

      • 2-3, 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Bulletins – December 2001 01-07-30-013A; replaces 01-07-30-013; 2- 3, 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission; 1999-2000 Chevrolet and GMC C/K Models and Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine (VINs W, V, T, U -- RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E Transmission 2- 3, 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission

      What the documents say to do

      4L80-E / 4L85-E planetary gear whine in first and second gear

      Confirm

      • Compare the vehicle with an identically built vehicle (same GVWR) before attempting any repairs.

      Repair

      1. If end play is out of specification, inspect and replace the output planetary gear set as necessary.
      2. If end play is within specification, replace the transmission assembly.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Bulletin 01-07-30-013A replaces 01-07-30-013 and lists "1999-2000 Chevrolet and GMC C/K Models and Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine" (VINs W, V, T, U; RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E transmission.
    • Condition：2-3, 3-4 shift characteristics during cold weather operation on the 4L60-E or 4L80-E transmission.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Bulletins – December 2001 01-07-30-013A; replaces 01-07-30-013; 2- 3, 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission; 1999-2000 Chevrolet and GMC C/K Models and Cadillac Escalade with 4.3L, 4.8L 5.3L or 6.0L Gas Engine (VINs W, V, T, U -- RPOs L35, LR4, LM7, LQ4) and 4L60-E or 4L80-E Transmission 2- 3, 3-4 Shift Characteristics During Cold Weather Operation on 4L60-E or 4L80-E Transmission