GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Express 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Drive Belt Idler Pulley Replacement - without Air Conditioning

Removal Procedure

    Object Number: 338506 Size: SH
  1. Remove the upper fan shroud. Refer to Fan Shroud Replacement in Engine Cooling.
  2. Remove the drive belt. Refer to Drive Belt Replacement .
  3. Remove the belt idler pulley bolt.
  4. Remove the belt idler pulley from the power steering pump mounting bracket.

Installation Procedure

    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: 338506 Size: SH
  1. Install the belt idler pulley and bolt to the power steering pump mounting bracket.

    2. Tighten
    Tighten the idler pulley bolt to 50 N·m (37 lb ft).

  2. Install the drive belt. Refer to Drive Belt Replacement .
  3. Install the upper fan shroud. Refer to Fan Shroud Replacement in Engine Cooling.