GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 176828  Size: SH

    Important:  Inspect and service the vacuum check valve and the grommet without removing the booster from the vehicle.

  1. Disconnect brake booster vacuum hose from vacuum check valve.
  2. Remove brake booster vacuum check valve from vacuum booster.

Installation Procedure


    Object Number: 176828  Size: SH
  1. Install brake booster vacuum check valve from vacuum booster.
  2. Disconnect brake booster vacuum hose from vacuum check valve.