GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 49594  Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.

  2. Object Number: 66405  Size: SH
  3. Disconnect the boost source and signal hoses from the boost control solenoid (2).
  4. Disconnect the boost control solenoid electrical connector.
  5. Remove the boost control solenoid retaining nut.

  6. Object Number: 66407  Size: SH
  7. Remove the boost control solenoid (2).

Installation Procedure


    Object Number: 66407  Size: SH
  1. Install the boost control solenoid (2).

  2. Object Number: 66405  Size: SH
  3. Install the boost control solenoid retaining nut.
  4. Tighten
    Tighten the nut to 8 N·m (72 lb in).

  5. Connect the boost control solenoid electrical connector.
  6. Connect the boost source and signal hoses to the boost control solenoid.

  7. Object Number: 49594  Size: SH
  8. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.