For 1990-2009 cars

### Removal Procedure

1. Drain the engine coolant from the engine cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
3. Disconnect the knock sensor electrical connector.
4. Remove the oil filter. Refer to Engine Oil and Oil Filter Replacement .
5. Remove the oil cooler outlet hose from the oil cooler. Position the outlet hose aside.
6. Remove the oil cooler connector.
7. Remove the oil cooler inlet hose clamp and the oil cooler.
8. Clean and inspect the engine block mating surface.

### Installation Procedure

1. Install the oil cooler and the oil cooler inlet hose clamp. Ensure that the oil cooler seal is in place. Coat the seal with engine oil.

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.

2. Install the oil cooler connector.

Tighten
Tighten the oil cooler connector to 50 N·m (37 lb ft).

3. Connect the oil cooler outlet hose to the oil cooler.
4. Install the oil filter. Refer to Engine Oil and Oil Filter Replacement .
5. Connect the knock sensor electrical connector.
6. Lower the vehicle.
7. Fill the engine cooling system with engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
8. Add engine oil as necessary. Refer to Engine Oil and Oil Filter Replacement .
9. Inspect the oil cooler for leaks.