GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

    • J 42089 Linkage Installer
    • J 42400 Relay Rod Removal Tool

Notice: Do not attempt to disconnect a steering linkage joint by driving a wedge between the joint and the attached part. Seal damage may result which will cause premature failure of the joint.

    Caution: To help avoid personal injury when a vehicle is on a hoist, provide additional support for the vehicle at the opposite end from which components are being removed. This will reduce the possibility of the vehicle falling off the hoist.


    Object Number: 156117  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the idler arm bolts.
  3. Remove the relay rod-to-idler arm ball stud nut.
  4. Use the J 42400 to remove idler arm from the relay rod.

Installation Procedure


    Object Number: 156117  Size: SH

    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.

  1. Install the idler arm and bolts.
  2. Tighten
    Tighten the idler arm bolts to 60 N·m (44 lb ft).

  3. Install the relay rod to the idler arm.
  4. Install the J 42089 to the relay rod ball stud.
  5. Tighten
    Tighten the J 42089 to 30 N·m (22 lb ft).

  6. Remove the J 42089 from the relay rod ball stud.
  7. Important: Use a new self-locking idler arm ball stud nut.

  8. Install the relay rod-to-idler arm ball stud nut.
  9. Tighten
    Tighten the relay rod-to-idler arm ball stud nut to 60 N·m (44 lb ft).

  10. Lower the vehicle.