GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: Allow sufficient clearance around the transaxle oil cooler pipes and around the hoses to prevent damage or wear which may cause fluid loss.

  1. Disconnect upper transmission cooler line.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Position the drain pan.

  4. Object Number: 161035  Size: SH
  5. Remove the transaxle oil cooler hoses from the transaxle oil cooler fittings in the transaxle.

  6. Object Number: 161059  Size: SH
  7. Remove the transaxle oil cooler hose clamps.
  8. Remove the transaxle oil cooler hoses from the transaxle oil cooler pipes.
  9. Remove the transaxle oil cooler hose bolt/screw.
  10. Remove the transaxle oil cooler hoses.

Installation Procedure


    Object Number: 161035  Size: SH

    Important: The correct thread engagement is critical. The crossthreaded fittings can achieve proper tightness value and still leak.

  1. Install the transaxle oil cooler hoses.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the transaxle oil cooler hose bolt/screw.
  4. Tighten
    Tighten the transaxle oil cooler hose bolt/screw to 25 N·m (18 lb ft).

  5. Install the transaxle oil cooler hoses to the transaxle oil cooler fittings in the transaxle.
  6. Tighten
    Tighten the transaxle oil cooler hose fittings to 23 N·m (17 lb ft).


    Object Number: 161059  Size: SH
  7. Install the transaxle oil cooler hoses to the transaxle oil cooler pipes.
  8. Install the transaxle oil cooler clamps to the transaxle oil cooler hoses on the transaxle oil cooler pipes at the radiator.
  9. Lower the vehicle.
  10. Adjust the fluid level. Refer to the following information:
  11. •  Transmission Fluid Check
    •  Approximate Fluid Capacities in Maintenance and Lubrication
    •  Fluid and Lubricant Recommendations in Maintenance and Lubrication
  12. Inspect for fluid leaks and repair as necessary.