GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2003 🢒 H2 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Air Conditioning Compressor Belt Replacement

Removal Procedure
  1. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory .
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the engine protection shield. Refer to Engine Protection Shield Replacement .

    4. Object Number: 370869 Size: SH
  4. Install a ratchet into the air conditioning (A/C) belt tensioner adapter opening.
  5. Rotate the A/C belt tensioner clockwise in order to relieve tension on the belt.
  6. Remove the A/C belt from the pulleys.
  7. Slowly release the tension on the A/C belt tensioner.
  8. Remove the ratchet from the A/C belt tensioner.
  9. Clean and inspect the belt surfaces of all the pulleys.

Installation Procedure

    Object Number: 370869 Size: SH
  1. Install the A/C belt around the crankshaft balancer.
  2. Install a ratchet into the A/C drive belt tensioner adapter opening.
  3. Rotate the A/C belt tensioner clockwise in order to relieve tension on the tensioner.
  4. Install the A/C belt over the idler pulley.
  5. Install the A/C belt around the A/C compressor pulley.
  6. Slowly release the tension on the A/C belt tensioner.
  7. Remove the ratchet from the A/C belt tensioner.
  8. Inspect the A/C belt for proper installation and alignment.

    9. Notice: Refer to Fastener Notice in the Preface section.

  9. Install the engine protection shield. Refer to Engine Protection Shield Replacement .

    10. Object Number: 678802 Size: SH
  10. Install the engine shield bolts.

    11. Tighten
    Tighten the engine shield bolts to 20 N·m (15 lb ft).

  11. Lower the vehicle.
  12. Install the accessory drive belt. Refer to Drive Belt Replacement - Accessory .