GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 176823  Size: SH
  1. Disconnect the vacuum hose from vacuum brake booster.

  2. Object Number: 176814  Size: SH
  3. Remove the fuel injector sight shield (3800 only).

  4. Object Number: 177473  Size: SH
  5. Disconnect the vacuum hose from the intake manifold.

Installation Procedure


    Object Number: 177473  Size: SH
  1. Connect the vacuum hose from the intake manifold.

  2. Object Number: 176814  Size: SH
  3. Install the fuel injector sight shield (3800 only).

  4. Object Number: 176823  Size: SH
  5. Connect the vacuum hose from vacuum brake booster.