GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the steering linkage shield. Refer to Steering Linkage Shield Replacement in Steering Linkage (Non-Rack and Pinion).

  3. Object Number: 416592  Size: SH
  4. Disconnect the vacuum hose (1) from the shut-off valve (2).

  5. Object Number: 416593  Size: SH
  6. Disconnect the shut-off valve hose (1) from the AIR pump by releasing the spring clamp.

  7. Object Number: 416594  Size: SH
  8. Disconnect the reactor pipe assembly from the reactor pipes by releasing the spring clamps.

  9. Object Number: 373100  Size: SH
  10. Remove the reactor pipe assembly.

Installation Procedure


    Object Number: 416594  Size: SH
  1. Connect the reactor pipe assembly to the reactor pipes by installing the spring clamps.

  2. Object Number: 416592  Size: SH
  3. Install the vacuum hose (1) to the shut-off valve (2).

  4. Object Number: 416593  Size: SH
  5. Connect the shut-off valve hose (1) to the AIR pump by installing the spring clamp.
  6. Install the steering linkage shield. Refer to Steering Linkage Shield Replacement in Steering Linkage (Non-Rack and Pinion).