GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Oil Filter Bypass Valve


    Object Number: 70416  Size: SH
  1. Remove the oil filter.
  2. Refer to Engine Oil and Oil Filter Replacement .

  3. Remove the bolts.
  4. Remove the oil filter bypass valve.
  5. Inspect the bypass valve spring and valve disc for proper operation, cracks, and damage.
  6. Replace the oil filter bypass valve if necessary.

  7. Clean the valve chamber in the engine block.

Oil Filter Adapter


    Object Number: 39122  Size: SH
  1. Remove and discard the oil filter. Refer to Engine Oil and Oil Filter Replacement .
  2. Remove the oil cooler pipes.
  3. Remove the oil filter adapter. Refer to Oil Filter Adapter Removal .
  4. Clean all sealing surfaces.

Installation Procedure

Oil Filter Bypass Valve


    Object Number: 70416  Size: SH
  1. Install the oil filter bypass valve and a new gasket.
  2. 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.

  3. Install the oil filter adapter retaining bolts finger tight.
  4. Tighten
    Tighten the bolts to 23N·m (17 lb ft).

  5. Install the engine oil and the oil filter.
  6. Refer to Engine Oil and Oil Filter Replacement .

Oil Filter Adapter


    Object Number: 39122  Size: SH
  1. Install the oil filter adapter. Refer to Oil Filter Adapter Installation .
  2. Install the oil cooler pipes.
  3. Install the engine oil and the new oil filter.
  4. Refer to Engine Oil and Oil Filter Replacement .