GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the wheelhouse panel. Refer to Front Wheelhouse Liner Replacement.

  3. Object Number: 1715293  Size: SH
  4. Disconnect the auxiliary lower transmission line to the auxiliary transmission oil cooler (TOC). Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection.
  5. Remove the lower TOC line from the auxiliary TOC.

  6. Object Number: 1715297  Size: SH
  7. Disconnect the radiator to auxiliary TOC line from the auxiliary TOC. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection.
  8. Remove the radiator to TOC line from the auxiliary TOC.

  9. Object Number: 1715285  Size: SH
  10. Remove the auxiliary TOC retaining bolts.
  11. Remove the auxiliary TOC from the vehicle.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1715285  Size: SH
  1. Install the auxiliary TOC to the vehicle then tighten the bolts to 25 N·m (18 lb ft).
  2. Install the auxiliary TOC retaining bolts.

  3. Object Number: 1715297  Size: SH
  4. Install the radiator to TOC line to the auxiliary TOC.
  5. Connect the radiator to TOC line to the auxiliary TOC. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection.

  6. Object Number: 1715293  Size: SH
  7. Install the lower TOC line to the auxiliary TOC.
  8. Connect the lower TOC line to the auxiliary TOC. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection.
  9. Install the wheelhouse panel. Refer to Front Wheelhouse Liner Replacement.
  10. Lower the vehicle.
  11. Fill the transmission fluid. Refer to Transmission Fluid Fill Procedure.