GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2002 🢒 Eldorado 🢒 Body and Accessories 🢒 Bumpers 🢒 Rear Energy Absorber Replacement

Removal Procedure

    Caution: Failure to observe the following procedure when handling energy absorbers could cause personal injury.

       • Do not apply heat to an energy absorber.
       • Do not weld in the area of an energy absorber.
       • Do not attempt to repair a damaged energy absorber. Always replace the damaged energy absorber with a new part.
       • If an energy absorber is bound-up as a result of a collision such that it cannot extend, take precautions to avoid spring-back when bending sheet metal. Provide a positive restraint, such as a chain or cable to hold the bumper in the position it is in. Wear approved safety glasses and using a 3mm (1/8 inch) drill bit, drill a small hole in the piston tube near the bumper bracket to relieve gas pressure. Remove the energy absorber after gas pressure has been relieved.
       • If an energy absorber is to be scrapped, relieve the gas pressure prior to disposal of the part. Make an indentation with a center punch in the small cylinder section of the energy absorber.


    Object Number: 656691 Size: SH
  1. Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement .
  2. Disconnect the rear tail pipe insulator hangers from the exhaust muffler hanger brackets.
  3. Remove the fasteners (2, 3, 5) securing the energy absorber to the body rail (4).
  4. Remove the rear energy absorber (1).

Installation Procedure

    Object Number: 656691 Size: SH
  1. Align the energy absorber (1) to the body rail (4).

    2. Object Number: 656690 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.

  2. Install the fasteners.

    3. Tighten
    Tighten the fasteners in sequence to 30 N·m (22 lb ft).

  3. Connect the rear tail pipe insulator hangers to the exhaust muffler hanger brackets.
  4. Install the rear bumper fascia. Refer to Rear Bumper Fascia Replacement .