GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: Make note of the routing in order to aid in reassembly.

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .

  2. Object Number: 788622  Size: SH
  3. Remove the vent hose from the top of the rear axle.

  4. Object Number: 788624  Size: SH
  5. Remove the vent hose from the clip attached to the frame.

Installation Procedure


    Object Number: 788624  Size: SH
  1. Install the vent hose to the clip attached to the frame.
  2. • Route the same way as when removed.
    • Ensure that the hose is free of kinks and is routed clear of sharp objects.
    • Ensure that the vent is not plugged.

    Object Number: 788622  Size: SH
  3. Install the vent hose to the top of the rear axle.
  4. Lower the vehicle.