GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 177473  Size: SH
  1. Disconnect the vacuum hose from vacuum brake booster.
  2. Remove the fuel injector sight shield.
  3. Disconnect the vacuum hose from the intake manifold.

Installation Procedure


    Object Number: 177473  Size: SH
  1. Connect the vacuum hose to the intake manifold.
  2. Install the fuel injector sight shield.
  3. Connect the vacuum hose to vacuum brake booster.