GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


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

Installation Procedure


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

    Notice: Refer to Fastener Notice in the Preface section.

  3. Install the drive belt. Refer to Drive Belt Replacement - Accessory .
  4. Tighten the drive belt idler pulley bolt.
  5. Tighten
    Tighten the drive belt idler pulley bolt to 50 N·m (37 lb ft).