GM Service Manual Online
For 1990-2009 cars only

Drive Belt Idler Pulley Replacement VIN 1 - Upper

Removal Procedure


    Object Number: 48488  Size: SH
  1. Remove the supercharger drive belt. Refer to Accessory Drive Belts Replacement

  2. Object Number: 97872  Size: SH
  3. Remove the drive belt idler pulley bolt.
  4. Remove the drive belt idler pulley.

Installation Procedure


    Object Number: 97872  Size: SH
  1. Install the drive belt idler pulley.
  2. Install the drive belt idler pulley bolt.
  3. Tighten
    Tighten the bolt to 50 N·m (37 lb ft).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


    Object Number: 48488  Size: SH
  4. Install the supercharger drive belt. Refer to Accessory Drive Belts Replacement

Drive Belt Idler Pulley Replacement VIN 1 - Lower

Removal Procedure


    Object Number: 48488  Size: SH
  1. Remove the supercharger drive belt.

  2. Object Number: 97871  Size: SH
  3. Remove the drive belt idler pulley bolt.
  4. Remove the drive belt idler pulley.

Installation Procedure


    Object Number: 97871  Size: SH
  1. Install the drive belt idler pulley.
  2. Install the drive belt idler pulley bolt.
  3. Tighten
    Tighten the bolt to 50 N·m (37 lb ft).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.


    Object Number: 48488  Size: SH
  4. Install the supercharger drive belt.