GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 58537  Size: SH
  1. Disconnect the negative battery cable. Refer to

    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.

    in General Information.
  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. Release the tensioner.
  6. If the vehicle has A/C remove the drive belt from the A/C compressor pulley.

  7. Object Number: 58538  Size: SH
  8. Remove the drive belt.

Installation Procedure


    Object Number: 58538  Size: SH
  1. Route the drive belt.

  2. Object Number: 58537  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. Connect the negative battery cable.