GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 105820  Size: SH
  1. Remove the acoustic engine cover. Refer to Acoustic Engine Cover Replacement in Engine Mechanical.
  2. Remove the vacuum line from the upper intake.
  3. Slide the conduit back from the modulator hose.
  4. Remove the vacuum line from the modulator.

Installation Procedure


    Object Number: 105820  Size: SH
  1. Install the vacuum line to the modulator
  2. Slide the conduit back over the hose at modulator.
  3. Install the vacuum line to the upper intake.
  4. Install the acoustic engine cover. Refer to Acoustic Engine Cover Replacement .