GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the hose clamps.

  2. Object Number: 212483  Size: SH
  3. Remove the check valve and hose (8) from the booster (1) and the vacuum pipe.

Installation Procedure


    Object Number: 212483  Size: SH

    Important: Install the check valve and hose in the proper direction as indicated on the hose. Improper hose installation will cause the check valve to stop the vacuum flow to the booster assembly, rendering the booster assembly inoperative.

  1. Install the check valve and hose (8) to the booster (1) and the vacuum pipe.
  2. Secure the check valve and hose (8) with hose clamps.