GM Service Manual Online
For 1990-2009 cars only

Oil Filter Adapter Removal 2WD


    Object Number: 452375  Size: SH
  1. Loosen the oil filter fitting, using a hex wrench.

  2. Object Number: 70416  Size: SH
  3. Remove the oil filter fitting.
  4. Remove the oil bypass valves (if required). Unstake the tangs on oil bypass valves and remove with long nose pliers.

  5. Object Number: 180862  Size: SH
  6. Inspect the oil filter fitting, replace if necessary.
  7. Discard the oil bypass valves, if removed.

Oil Filter Adapter Removal 4WD


    Object Number: 70415  Size: SH
  1. Remove the oil filter adapter using the following procedure:
  2. 1.1. Remove the plugs from the oil filter adapter.
    1.2. Remove the bolts from the oil filter adapter.
    1.3. Remove the oil filter adapter and the O-ring seal.

    Object Number: 180862  Size: SH
  3. Remove the oil bypass valves (if required). Unstake the tangs on oil bypass valves and remove with long nose pliers.
  4. Inspect the oil filter adapter.
  5. Discard the oil bypass valves, if removed.