GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC P42 Commercial Chassis 🢒 Engine 🢒 Engine Mechanical - 4.3L 🢒 Drive Belt Idler Pulley Replacement

Removal Procedure

    Object Number: 310229 Size: SH
  1. Remove the drive belt. Refer to Drive Belt Replacement .
  2. Remove the belt idler pulley bolt.
  3. Remove the belt idler pulley from the generator and drive belt tensioner 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: 310229 Size: SH
  1. Install the belt idler pulley and bolt to the generator and drive belt tensioner bracket.

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

  2. Install the drive belt. Refer to Drive Belt Replacement .