GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41239-10 Cooler Line Seal Remover

Removal Procedure

  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. Object Number: 643345  Size: SH
  4. Remove the cooler pipe bracket stud.

  5. Object Number: 643333  Size: SH
  6. Remove the oil cooler pipe seals.

Installation Procedure


    Object Number: 643327  Size: SH
  1. Install the J 41239-10 on the transmission case using cooler pipe bracket stud hole.

  2. Object Number: 104417  Size: SH
  3. Install a new seal in the case bore.
  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 .