GM Service Manual Online
For 1990-2009 cars only

Shock Absorber Replacement With F55

Special Tools

    • J 33432-A Transverse Spring Compressor
    • J 43822 Shock Support Tool

Removal Procedure


    Object Number: 906230  Size: SH
  1. Disconnect the front shock ESC harness connector.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  3. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.

  4. Object Number: 906229  Size: SH

    Note: The ESC connector seals to the upper shock shaft. If the upper shock shaft is damaged, the shock will need replacement.

  5. Using only hand tools, remove the upper mounting nut, insulator retainer and insulator.
  6. Remove the shock absorber lower mounting bolts and nuts.
  7. Using a pry bar, compress the shock absorber from the bottom upward.
  8. While the shock is in the compressed position, install the J 43822 .
  9. Remove the shock absorber from the vehicle.
  10. Remove the J 43822 from the shock absorber.
  11. Remove the insulator and insulator retainer from the shock absorber.

Installation Procedure

  1. Install the J 43822 to the shock absorber.
  2. Install the insulator and insulator retainer to the shock absorber.

  3. Object Number: 906230  Size: SH
  4. Position the shock absorber between the upper shock support and lower control arm.
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the insulator, insulator retainer and nut to the upper shock shaft and tighten to 26 N·m (19 lb ft).
  7. Remove the J 43822 from the shock absorber.
  8. Using the J 33432-A , compress the coil spring.
  9. Raise the lower control arm to the shock absorber lower mounting and install the bolts and nuts and tighten to 28 N·m (21 lb ft).
  10. Remove the J 33432-A from the coil spring.
  11. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  12. Lower the vehicle.

  13. Object Number: 906229  Size: SH
  14. Connect the ESC harness connector. Check the connection by lightly pulling upwards on the connector.

Shock Absorber Replacement w/o F55

Special Tools

    • J 33432-A Leaf Spring Compressor
    • J 43822 Shock Remover/Installer

Removal Procedure


    Object Number: 581266  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  3. Disconnect the electronic suspension control electrical connector from the shock, if equipped.
  4. Remove the upper mounting nut, insulator retainer, and insulator.

  5. Object Number: 65335  Size: SH
  6. Remove the shock absorber lower mounting bolts and nuts.
  7. Remove the shock absorber from the upper shock tower and the vehicle.
  8. Remove the insulator and retainer from shock absorber.
  9. For vehicles equipped with heavy duty shocks (FE3) perform the following steps.
  10.         Note: During this procedure, use care not to scratch the transverse spring.

    8.1. Perform steps 1-4.
    8.2. Using a pry bar compress the shock absorber from the bottom upward.
    8.3. Install the J 43822 to the shock absorber while the shock is compressed.
    8.4. Remove the shock absorber from the shock tower and the vehicle.
    8.5. Remove J 43822 from the shock absorber.

Installation Procedure


    Object Number: 65335  Size: SH
  1. Install the retainer and insulator to the shock absorber.
  2. Install the shock absorber to the upper shock tower.
  3. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the upper insulator, retainer, and nut.
  5. Tighten
    Tighten the shock absorber upper mounting nut to 26 N·m (19 lb ft).

  6. Install the shock absorber lower mounting bolts and nuts.
  7. Tighten
    Tighten the shock absorber lower mounting nuts to 28 N·m (21 lb ft).


    Object Number: 581266  Size: SH
  8. Connect the electronic suspension control electrical connector to the shock, if equipped.
  9. Remove J 33432-A from the spring.
  10. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  11. Lower the vehicle.
  12. For vehicles equipped with heavy duty shocks (FE3) perform the following steps.
  13. 9.1. Install the J 43822 to the shock absorber.
    9.2. Install the shock absorber into the vehicle.
    9.3. Install the upper insulator, retainer, and nut.

    Tighten
    Tighten the shock absorber upper mounting nut to 26 N·m (19 lb ft).

    9.4. Remove J 43822 from the shock absorber.
    9.5. Install J 33432-A to the spring and compress.
    9.6. Raise the lower control arm and install the shock absorber lower mounting bolts and nuts.

    Tighten
    Tighten the shock absorber lower mounting nuts to 28 N·m (21 lb ft).

    9.7. Remove J 33432-A from the spring.
    9.8. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
    9.9. Lower the vehicle.