GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Envoy - 4WD 🢒 Steering 🢒 Power Steering System 🢒 Power Steering Fluid Cooler Replacement

Removal Procedure

    Object Number: 687441 Size: SH
  1. Remove the radiator air intake baffle. Refer to Air Intake Baffle Replacement - Radiator in Body Front End.
  2. Install a drain pan under the vehicle.
  3. Disconnect the power steering hose assembly from the power steering cooler.

    4. Object Number: 687448 Size: SH
  4. Remove the power steering cooler mounting bolts.

    5. Object Number: 687449 Size: SH
  5. Remove the power steering cooler from the radiator support.

Installation Procedure

    Object Number: 687449 Size: SH
  1. Install the power steering cooler to the radiator support.

    2. Object Number: 687448 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.

  2. Install the power steering cooler mounting bolts.

    3. Tighten
    Tighten the power steering cooler mounting bolts to 20 N·m (15 lb ft).


    Object Number: 687441 Size: SH
  3. Connect the power steering hoses assembly to the power steering cooler.
  4. Remove drain pan from under the vehicle.
  5. Install the radiator air intake baffle. Refer to Air Intake Baffle Replacement - Radiator in Body Front End.