GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41239-10 Cooler Pipe 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 .
  12. Important: It is recommended that transmission adaptive pressure (TAP) information be reset.

    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

  13. Reset the TAP values. Refer to Adapt Function .