Important: The engine front cover gasket is reusable.

1. Remove the crankshaft balancer from the crankshaft. Refer to Crankshaft Balancer Replacement .
2. Remove the water pump from the engine block. Refer to Water Pump Replacement
3. Remove the oil pan. Refer to Oil Pan Replacement
4. Remove the crankshaft position sensor from the engine front cover. Refer to Crankshaft Position Sensor Replacement in Engine Controls.



5. Remove the engine front cover bolts.
6. Remove the engine front cover and the gasket.
7. Remove the engine front cover seal from the engine front cover.

•	Pry the engine front cover seal out with a screwdriver.

•	Take care not to distort the engine front cover.

8. Inspect the engine front cover and engine front cover gasket for distortion and damage. Replace if necessary.

Tools Required

J 22102 Crankshaft oil seal and sprocket instraller.

1. Coat the crankshaft front seal lips with clean engine oil.



2. Use the J 22102 to install the new seal.




Important: Apply RTV sealer GM P/N 12345739 to both front corners of the oil pan.

3. Install the engine front cover and gasket to the engine block.

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.

4. Install the engine front cover bolts to the engine.

Tighten
Tighten the bolts to 10 N·m (89 lb in).

5. Install the oil pan to the engine block. Refer to Oil Pan Replacement .
6. Install the crankshaft position sensor to the engine front cover. Refer to Crankshaft Position Sensor Replacement in Engine Controls.
7. Install the water pump. Refer to Water Pump Replacement .
8. Install the crankshaft balancer to the crankshaft. Refer to Crankshaft Balancer Replacement .