GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Savana (CNG) 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E/4L85-E 🢒 Transmission Fluid Pump Removal

Tools Required

    • J 23129 Universal Seal Remover
    • J 6125-1B Slide Hammer
    • J 45053 Universal Clamp Press

    Object Number: 334756 Size: SH
  1. Remove the turbine shaft front oil seal ring (2).

    2. Object Number: 28400 Size: SH
  2. Using the J 23129 and the J 6125-1B , remove the torque converter oil seal assembly (201).

    3. Object Number: 774704 Size: SH
  3. Remove the 7 oil pump bolt and seal assemblies (3).
  4. Attach the J 45053 to the oil pump shaft. Tighten the bolts.
  5. Turn the handle of the J 45053 down onto the turbine shaft in order to raise the oil pump assembly (4) out of the case.
  6. Remove the oil pump assembly (4).
  7. Remove the J 45053 .

    8. Object Number: 28402 Size: SH
  8. Remove the transmission oil pump gasket (6).

    9. Important: The selective thrust washer (218) may be stuck to the pump cover.

  9. Remove the selective thrust washer (218).