GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 41239-10 Cooler Pipe Seal Remover

  1. Raise the vehicle. Support the vehicle . Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the transmission oil cooler pipes from the transmission. Refer to Automatic Transmission Oil Cooler Pipes Replacement .
  3. Remove the cooler pipe bracket stud.

  4. Object Number: 643327  Size: SH
  5. Remove the oil cooler pipe seals (49). Use the J 41239-10

Installation Procedure

Tools Required:

J 41239-1A Cooler Pipe Seal Installer


    Object Number: 643345  Size: SH
  1. Install the cooler line bracket and seal.

  2. Object Number: 643327  Size: SH
  3. Install the J 41239-1A on the transmission case using cooler pipe bracket stud hole.
  4. Press the new seals in. Tighten the J 41239-1A until the seal bottoms out in the case bore.

  5. Object Number: 643345  Size: SH
  6. Install the cooler pipe bracket stud.
  7. Install the transmission oil cooler pipes. Refer to Automatic Transmission Oil Cooler Pipes Replacement .
  8. Lower the vehicle.
  9. Inspect the transmission fluid level. Refer to Transmission Fluid Check .
  10. Operate the engine for 2 or 3 minutes.
  11. Inspect the transmission fluid level. Refer to Transmission Fluid Check .