GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Important: Do not exceed 40 N·m (30 lb ft) on the tensioner center bolt.

  3. Rotate the belt tensioner clockwise. Use a 15 mm wrench.
  4. Slide the belt from the generator pulley.

  5. Object Number: 193380  Size: SH
  6. Release the tensioner.

  7. Object Number: 193370  Size: SH
  8. If the vehicle has A/C remove the drive belt from the A/C compressor pulley.
  9. Remove the drive belt.

Installation Procedure


    Object Number: 193380  Size: SH
  1. Route the drive belt.

  2. Object Number: 193370  Size: SH
  3. If the vehicle has A/C route the drive belt around the A/C compressor pulley.
  4. Rotate the belt tensioner clockwise. Use a 15 mm wrench.
  5. Slide the belt onto the generator pulley.
  6. Release the tensioner.
  7. 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.

  8. Connect the negative battery cable.
  9. Tighten
    Tighten the bolt to 16 N·m (12 lb ft).