GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 176823  Size: SH
  1. Disconnect the brake booster vacuum hose (2) at the vacuum check valve (1).
  2. Remove the brake booster vacuum check valve (1) from the booster.

Installation Procedure


    Object Number: 176823  Size: SH
  1. Install the new brake booster vacuum check valve (1) till it is fully seated in the grommet of the booster.
  2. Connect the brake booster vacuum hose (2) at the vacuum check valve (1).