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 lines from the transmission. Refer to Automatic Transmission Oil Cooler Pipes Replacement .

  3. Object Number: 643333  Size: SH
  4. Remove the oil cooler line seals.

  5. Object Number: 643345  Size: SH
  6. Remove the cooler line bracket stud.

Installation Procedure

Tools Required:

J 41239-1A Cooler Pipe Seal Installer


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

  4. Object Number: 643345  Size: SH
  5. Install the cooler line bracket stud.
  6. Install the transmission oil cooler lines. Refer to Automatic Transmission Oil Cooler Pipes Replacement .
  7. Lower the vehicle.
  8. Inspect the transmission fluid level. Refer to Transmission Fluid Check .