GM Service Manual Online
For 1990-2009 cars only

Rear Spoiler Replacement Chevrolet

Removal Procedure


    Object Number: 283991  Size: SH
  1. Remove the retaining nuts (3) from deck lid spoiler.

  2. Object Number: 283992  Size: SH
  3. Disconnect the deck lid spoiler wire harness connector (1).

  4. Object Number: 283991  Size: SH
  5. Remove the deck lid spoiler (1).

Installation Procedure


    Object Number: 283991  Size: SH
  1. Position the deck lid spoiler (1) on the deck lid.
  2. Pull gently on the deck lid spoiler wire harness in order to seat the grommet.

  3. Object Number: 283992  Size: SH
  4. Connect the wire harness connector (1) to the deck lid spoiler.

  5. Object Number: 283991  Size: SH

    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 deck lid spoiler nuts (3).
  7. Tighten
    Tighten the spoiler nuts to 5 N·m (44 lb in).

Rear Spoiler Replacement Pontiac

Removal Procedure


    Object Number: 283987  Size: SH
  1. Remove the retaining nut access plugs (1) from the deck lid as necessary.

  2. Object Number: 283985  Size: SH
  3. Remove the retaining nuts (2) from the deck lid spoiler.

  4. Object Number: 283989  Size: SH
  5. Disconnect the wire harness connector (1) from the deck lid spoiler.

  6. Object Number: 283985  Size: SH
  7. Remove the deck lid spoiler (1).

Installation Procedure


    Object Number: 283985  Size: SH
  1. Position the deck lid spoiler (1) on the deck lid.

  2. Object Number: 283989  Size: SH
  3. Pull gently on the spoiler wire harness in order to seat the grommet.
  4. Connect the wire harness connector (1) to the deck lid spoiler.

  5. Object Number: 283985  Size: SH

    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 retaining nuts (2) to the deck lid spoiler.
  7. Tighten
    Tighten the spoiler nuts to 5 N·m (44 lb in).


    Object Number: 283987  Size: SH
  8. Install the retaining nut access plugs (1) as necessary.