For 1990-2009 cars

Use only double-wrapped and use only brazed steel pipe meeting the GM specification 123M or equivalent if replacement of the transaxle oil cooler pipes are required. Ensure the pipe is double-flared.

### 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. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Position the drain pan.
3. Remove the transaxle oil cooler hoses from the transaxle oil cooler fittings. Refer to Automatic Transmission Oil Cooler Hose Replacement .
4. Remove the transaxle oil cooler fittings (28 and 29) from the transaxle.

### Installation Procedure

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.

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

1. Install the transaxle oil cooler fittings (28 and 29) to the transaxle.

Tighten
Tighten the transaxle oil cooler fittings (28 and 29) to 38 N·m (28 lb ft).

2. Install the transaxle oil cooler hoses to the transaxle oil cooler fittings. Refer to Automatic Transmission Oil Cooler Hose Replacement .
3. Lower the vehicle.
4. Adjust the fluid level. Refer to the following information.

• | Transmission Fluid Check

• | Fluid and Lubricant Recommendations in Maintenance and Lubrication

• | Approximate Fluid Capacities in Maintenance and Lubrication

5. Inspect for proper completion of the repairs.
6. Inspect for fluid leaks.