2008 6.6L Duramax – DRIVE BELT IDLER PULLEY REPLACEMENT – Installation Procedure

1. Install the right side idler pulley and bolt (1).
Tighten: Tighten the bolt to 50 N.m (37 lb ft).
2. Install the center idler pulley and bolt (2).
Tighten: Tighten the bolt to 50 N.m (37 lb ft).
3. If equipped with dual generators, install the left side idler pulley and bolt.

Tighten: Tighten the bolt to 50 N.m (37 lb ft).
4. Install the drive belt. Refer to Drive Belt Replacement.