GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: When raising or supporting the engine for any reason, do not use a jack under the oil pan, any sheet metal, or the crankshaft pulley. Due to the small clearance between the oil pan and the oil pump screen, jacking against the oil pan may cause the pan to be bent against the pump screen. This will result in a damaged oil pickup unit.


    Object Number: 55077  Size: SH
  1. Disconnect both the battery negative cables from the batteries. Refer to Battery Replacement in Engine Electrical.
  2. Raise the vehicle and support with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the flywheel from the crankshaft. Refer to Engine Flywheel Replacement .
  4. Remove the crankshaft rear oil seal from the crankshaft.

Installation Procedure

Tools Required

J 39084 Crankshaft Rear Oil Seal Installer


    Object Number: 60280  Size: SH
  1. Use the J 39084 to install the crankshaft rear oil seal to the crankshaft.
  2. Install the flywheel to the crankshaft. Refer to Engine Flywheel Replacement .
  3. Remove the safety stands and lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Connect both the battery negative cables to the batteries. Refer to Battery Replacement in Engine Electrical.