GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Blazer - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 236-NP8 🢒 Front Drive Axle Actuator Replacement

Removal Procedure

    Object Number: 392802 Size: SH
  1. Remove the battery and battery tray. Refer to Battery Tray Replacement in Engine Electrical.
  2. Disconnect the vacuum hose from the vacuum actuator.

    3. Object Number: 392797 Size: SH
  3. Disconnect front drive axle clutch cable.

    4. Object Number: 392809 Size: SH
  4. Remove the vacuum actuator bolts.
  5. Remove the vacuum actuator.

Installation Procedure

    Object Number: 392809 Size: SH
  1. Install the vacuum actuator.

    2. 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.

  2. Install the vacuum actuator bolts.

    3. Tighten
    Tighten the bolts to 1.4 N·m (12 lb in).


    Object Number: 392797 Size: SH
  3. Connect the front drive axle clutch cable.

    4. The front drive axle clutch cable must engage the vacuum actuator retainer spring.


    Object Number: 392802 Size: SH
  4. Connect the vacuum hose.
  5. Install the battery tray and the battery. Refer to Battery Tray Replacement in Engine Electrical.