GM Service Manual Online
For 1990-2009 cars only

Drive Belt Tensioner Replacement Accessory

Removal Procedure

  1. Remove the drive belt. Refer to Drive Belt Replacement .

  2. Object Number: 307274  Size: SH
  3. Remove the bolts and the tensioner assembly.

Installation Procedure


    Object Number: 307274  Size: SH
  1. Install the tensioner assembly and the bolt.
  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.

  3. Tighten the bolts to 50 N·m (37 lb ft).
  4. Install the drive belt. Refer to Drive Belt Replacement .

Drive Belt Tensioner Replacement A/C

Removal Procedure


    Object Number: 379894  Size: SH
  1. Remove the air conditioning (A/C) drive belt. Refer to Drive Belt Replacement
  2. Remove the A/C drive belt tensioner bolt.
  3. Remove the A/C drive belt tensioner.

Installation Procedure


    Object Number: 379894  Size: SH
  1. Install the A/C drive belt tensioner.
  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.

  3. Install the A/C drive belt tensioner bolt.
  4. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).

  5. Install the A/C drive belt. Refer to Drive Belt Replacement .