GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Drive Belt Replacement

Removal Procedure

    Object Number: 869702 Size: SH
  1. Install a 3/8 inch drive breaker bar to the drive belt tensioner arm.
  2. Rotate the drive belt tensioner (2) counterclockwise in order to relieve tension on the belt.
  3. If equipped without air conditioning (A/C), remove the belt (1) from the pulleys and the drive belt tensioner.

    4. Object Number: 869700 Size: SH
  4. If equipped with A/C, remove the belt (1) from the pulleys and the drive belt tensioner.
  5. Slowly release the tension on the drive belt tensioner (2).
  6. Remove the breaker bar from the drive belt tensioner.
  7. Clean and inspect the belt surfaces of all the pulleys.

Installation Procedure

    Object Number: 869700 Size: SH
  1. Route the belt (1) around all the pulleys except the flat idler pulley.
  2. Install a 3/8 inch drive breaker bar to the drive belt tensioner arm.
  3. Rotate the belt tensioner (2) counterclockwise in order to relieve the tension on the tensioner.
  4. If equipped with A/C, install the belt under the flat idler pulley.

    5. Object Number: 869702 Size: SH
  5. If equipped without A/C, install the belt (1) to the pulleys and the drive belt tensioner.
  6. Slowly release the tension on the belt tensioner (2).
  7. Remove the breaker bar from the drive belt tensioner.
  8. Inspect the drive belt for proper installation and alignment.