GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the fuel injector sight shield. Refer to Engine Mechanical.

  2. Object Number: 161003  Size: SH
  3. Slide the conduit back from the vacuum modulator pipe connection at the vacuum modulator

  4. Object Number: 161006  Size: SH
  5. Remove the vacuum line from the upper intake manifold.
  6. Remove the vacuum line from the vacuum modulator.

Installation Procedure


    Object Number: 161006  Size: SH
  1. Install the vacuum line to the vacuum modulator.
  2. Install the vacuum line to the upper intake manifold.

  3. Object Number: 161003  Size: SH
  4. Slide the conduit back over the vacuum modulator pipe connection at the vacuum modulator
  5. Install the fuel injector sight shield. Refer to Engine Mechanical.