GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Yukon XL - 2WD 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L 🢒 Drive Belt Idler Pulley Replacement

Removal Procedure

    Object Number: 678804 Size: SH
  1. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory.
  2. Loosen the drive belt idler pulley bolt and remove the idler pulley.

Installation Procedure

    Object Number: 678804 Size: SH
  1. Position the drive belt idler pulley to the generator bracket and tighten the idler pulley bolt finger tight.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Tighten the drive belt idler pulley bolt.

    3. Tighten
    Tighten the bolt to 50 N·m (37 lb ft).

  3. Install the accessory drive belt. Refer to Drive Belt Replacement - Accessory.