GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 379369  Size: SH
  1. Disconnect the secondary air injection (AIR) pump hose from the check valve hose.

  2. Object Number: 346024  Size: SH
  3. Remove the AIR valve hose clamps and hose.
  4. Remove the number 4 and 6 spark plugs wires.

  5. Object Number: 65292  Size: SH
  6. Remove the number 4 and 6 ignition coils from the coil bracket.

  7. Object Number: 220593  Size: SH
  8. Remove the oil level indicator from the tube.

  9. Object Number: 178459  Size: SH
  10. Remove the oil level indicator tube bolt.
  11. Remove the indicator tube from the engine block.
  12. Remove the O-ring from the tube.

Installation Procedure


    Object Number: 178459  Size: SH
  1. Clean the indicator tube.
  2. If the O-ring seal is damaged, install a new O-ring to the tube.
  3. Install the oil level indicator tube.
  4. Rotate the tube into the proper position.
  5. 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.

  6. Install the oil level indicator tube bolt.
  7. Tighten
    Tighten the oil level indicator tube bracket bolt to 25 N·m (18 lb ft).


    Object Number: 220593  Size: SH
  8. Install the indicator to the tube.

  9. Object Number: 65292  Size: SH
  10. Install the number 4 and 6 ignition coils to the coil bracket.
  11. Tighten
    Tighten the ignition coil bolts to 12 N·m (106 lb in).

  12. Install the number 4 and 6 spark plug wires.

  13. Object Number: 346024  Size: SH
  14. Install the AIR valve hose and clamps.

  15. Object Number: 379369  Size: SH
  16. Connect the AIR pump hose to the check valve hose.