GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the oil filter. Refer to Engine Oil and Oil Filter Replacement .

  2. Object Number: 858161  Size: SH
  3. Using a suitable tool, pry the oil filter bypass valve from the engine block.
  4. Discard the oil filter bypass valve.

Installation Procedure


    Object Number: 858161  Size: SH
  1. Press the new oil filter bypass valve into the engine block.
  2. Install the oil filter. Refer to Engine Oil and Oil Filter Replacement .