Oil Cooler: Service and Repair

Removal and Installation

LU-12 Component:

REMOVAL

WARNING: Be careful not to get burn yourself, as engine oil and engine coolant may be hot.

NOTE: When removing oil cooler only, step 2 is unnecessary.

1. Remove front engine undercover with power tool.
2. Drain engine coolant from radiator and cylinder block.

NOTE: Perform this step when removing water pipes.

3. Disconnect water hoses from oil cooler.
^ When removing oil cooler only, pinching water hoses near oil cooler to prevent engine coolant from spilling out.
^ Remaining engine coolant in piping will come out. Use a tray to collect it.

CAUTION:
^ Perform this step when the engine is cold.
^ Never spill engine coolant on drive belts.

4. Using oil filter wrench [SST: KV10115801 (J38956)], remove oil filter.

CAUTION: Never spill engine oil on drive belts.

5. Remove connector bolt, and remove oil cooler.

CAUTION: Never spill engine oil to rubber parts such as drive belts and engine mounting insulator.

6. Remove water pipes, as necessary.

INSPECTION AFTER REMOVAL

Oil Cooler
Check oil cooler for cracks. Check oil cooler for clogging by blowing through engine coolant inlet. If necessary, replace oil cooler.

Relief Valve
Check relief valve with the following procedure.
^ Press steel ball of relief valve using a clean plastic stick. Check that valve moves smoothly and proper spring repulsion is felt.
^ Replace relief valve, if necessary, with the following procedure.
- Remove the relief valve by prying using a screwdriver.

CAUTION: Be careful not to damage the mounting hole.

- Press in the relief valve until it reaches a depth of 7 mm (0.28 in) from end surface of oil pan (upper) using approximately 10 mm (0.39 in) diameter drift.

CAUTION: Carefully press in the relief valve by aligning its mounting hole side with the axle center so as not to cause deformation.

INSTALLATION
Note the following, and install in the reverse order of removal.
^ Check that no foreign objects are adhering to the installation planes of oil cooler, oil pan (upper) (2WD models) or oil cooler bracket (AWD models).

2WD Models





Align cutout on oil cooler with protrusion on oil pan (upper) side, and tighten connector bolt.

INSPECTION AFTER INSTALLATION
1. Check the engine oil level and the engine coolant level and add engine oil and engine coolant. Refer to.
Testing and Inspection
System Inspection
2. Start the engine, and check there is no leaks of engine oil or engine coolant.
3. Stop the engine and wait for 10 minutes.
4. Check the engine oil level and the engine coolant level again. Refer to.
Testing and Inspection
System Inspection