Important: Thoroughly inspect the CDR and crankshaft ventilation system before a new crankshaft rear oil seal is installed. The crankshaft pressure should also be tested.

Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.
2. Raise the vehicle. Support the vehicle with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.
3. Remove the transmission from the vehicle. Refer to the appropriate procedure:

•	Transmission Replacement in Automatic Transmission

•	Transmission Replacement in Manual Transmission




4. Remove the clutch assembly, if equipped. Refer to Clutch Assembly Replacement in Clutch.



5. Remove the flywheel from the crankshaft. Refer to Engine Flywheel Replacement .

Important: Use caution to avoid damaging the sealing area of the crankshaft when removing the crankshaft rear oil seal.




6. Remove the crankshaft rear oil seal from the engine block.

Tools Required

J 39084 Rear Crankshaft Oil Seal Installer

Important: The crankshaft sealing surface must be clean and smooth in order to prevent damaging the crankshaft rear oil seal lip when a new seal is installed.

Important: 

•	Coat the surface of the crankshaft with engine oil.

•	Lightly coat the lip of the new oil seal with engine oil or grease before installing the new oil seal.

•	Do not scratch or nick the edge of the oil seal.




1. Install the oil seal onto the crankshaft with the spring cavity facing the engine.
2. Use the J 39084 in order to drive the seal into the crankshaft until the tool bottoms against the block and the rear crankshaft bearing cap.



3. Install the flywheel to the crankshaft. Refer to Engine Flywheel Replacement .



4. Install the clutch assembly, if equipped. Refer to Clutch Assembly Replacement in Clutch.
5. Install the transmission to the vehicle. Refer to the appropriate procedure:

•	Transmission Replacement in Automatic Transmission

•	Transmission Replacement in Manual Transmission

6. Remove the safety stands and lower the vehicle.
7. Connect the negative battery cable.