GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2003 🢒 H2 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, and 6.0L 🢒 Drive Belt Replacement - Accessory

Removal Procedure

    Object Number: 832908 Size: SH
  1. Loosen the air cleaner outlet duct clamps at the following locations:
    2. • Throttle body
    • Mass airflow/intake air temperature (MAF/IAT) sensor
  2. Remove the air cleaner outlet duct.

    3. Object Number: 678802 Size: SH
  3. Install a breaker bar with hex-head socket to the drive belt tensioner bolt.
  4. Rotate the drive belt tensioner clockwise in order to relieve tension on the belt.
  5. Remove the belt from the pulleys and the drive belt tensioner.
  6. Slowly release the tension on the drive belt tensioner.
  7. Remove the breaker bar and socket and from the drive belt tensioner bolt.
  8. Clean and inspect the belt surfaces of all the pulleys.

Installation Procedure

    Object Number: 678802 Size: SH
  1. Route the drive belt around all the pulleys except the idler pulley.
  2. Install the breaker bar with hex-head socket to the belt tensioner bolt.
  3. Rotate the belt tensioner clockwise in order to relieve the tension on the tensioner.
  4. Install the drive belt under the idler pulley.
  5. Slowly release the tension on the belt tensioner.
  6. Remove the breaker bar and socket from the belt tensioner bolt.
  7. Inspect the drive belt for proper installation and alignment.

    8. Object Number: 832908 Size: SH

    Important: Align the arrow at the throttle body end of the duct with the throttle body attaching stud.

  8. Install the air cleaner outlet duct.

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

  9. Tighten the air cleaner outlet duct clamps at the following locations:
    10. • Throttle body
    • MAF/IAT sensor

    Tighten
    Tighten the air cleaner outlet duct clamp screws to 7 N·m (62 lb in).