GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 179498  Size: SH
  1. Remove the coolant heater cord retainer from the upper radiator support.
  2. Cut the coolant heater cord straps at the engine wiring harness.
  3. Disconnect the coolant heater cord from the coolant heater.
  4. Remove the coolant heater cord from the vehicle.

Installation Procedure


    Object Number: 179498  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 coolant heater cord to the vehicle.
  2. Connect the coolant heater cord to the coolant heater.
  3. Install a new coolant heater cord straps at the engine wiring harness.
  4. Install the coolant heater cord retainer to the upper radiator support.