GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

  2. Object Number: 193394  Size: SH
  3. Remove the resonator and duct assembly.

  4. Object Number: 193395  Size: SH
  5. Remove the resonator bracket/fuel rail cover.
  6. Remove left engine wiring harness retainer bracket nut and bracket.
  7. Remove wiring harness from retainer on valve rocker arm cover.
  8. Remove the valve rocker arm cover bolts.
  9. Remove the valve rocker arm cover.

  10. Object Number: 182912  Size: SH
  11. Clean the sealing surface on the cylinder head and the valve rocker arm cover.

Installation Procedure

    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.

  1. Install the valve rocker arm cover.

  2. Object Number: 182912  Size: SH
  3. Install the valve rocker arm cover bolts.
  4. Tighten
    Tighten the bolts to 10 N·m (89 lb in).


    Object Number: 193395  Size: SH
  5. Install the resonator bracket/fuel rail cover.
  6. Install the resonator bracket/fuel rail cover nuts.
  7. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).

  8. Install wiring harness to retainer on valve rocker arm cover.
  9. Install wiring harness retainer bracket and nut.
  10. Install the resonator and duct assembly.

  11. Object Number: 193394  Size: SH
  12. Connect the negative battery cable.
  13. Tighten
    Tighten the bolt to 16 N·m (12 lb ft).