GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 392600  Size: SH
  1. Disconnect the boost source vacuum hose (5) to the boost control solenoid (4).
  2. Disconnect the signal vacuum hose (3) to the boost control solenoid (4).
  3. Remove the boost control solenoid (4). Refer to Boost Control Solenoid Replacement .

  4. Object Number: 392856  Size: SH
  5. Remove the bypass valve actuator mounting bolts (2) and rotate the bypass valve actuator (1) until the rod disengages the lever.

Installation Procedure


    Object Number: 393103  Size: SH
  1. Install tool J 39363 (2) on to the bypass valve actuator (1).
  2. Important: When installing the bypass valve actuator to the supercharger, be sure to rotate the assembly until the bypass valve shaft lever comes in contact with the stop block.

  3. Rotate the actuator until the rod engages the lever.

  4. Object Number: 392856  Size: SH
  5. Install the bypass valve actuator (1) mounting bolts (2).
  6. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Tighten
    Tighten the bolts to 25 N·m (18 lb ft).


    Object Number: 392600  Size: SH
  7. Remove J 39363 .
  8. Install the boost control solenoid (4). Refer to Boost Control Solenoid Replacement .
  9. Connect the signal vacuum hose (3) to the boost control solenoid (4).
  10. Connect the boost source vacuum hose (5) to the boost control solenoid (4).