GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the drive belt. Refer to Drive Belt Replacement.
  2. Remove the drive belt tensioner bolt.

  3. Object Number: 637663  Size: SH
  4. Remove the drive belt tensioner.

Installation Procedure


    Object Number: 637663  Size: SH
  1. Install the drive belt tensioner.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the drive belt tensioner bolt and tighten to 50 N·m (37 lb ft).
  4. Install the drive belt. Refer to Drive Belt Replacement.