GM Service Manual Online
For 1990-2009 cars only

Coolant Heater Cord Replacement 3.1L

Removal Procedure


    Object Number: 296201  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the engine block heater cord from the engine block heater.
  3. Remove the engine block heater cord straps.
  4. Disconnect the upper engine block heater cord from the diagonal brace strap.
  5. Remove the engine block heater cord.

Installation Procedure


    Object Number: 296201  Size: SH

    Notice: The heater cord must not touch the engine, hot pipes, manifold, or any moving parts. Route the cord to the left front of the engine compartment securing with tie straps as necessary to prevent damage.

  1. Install the engine block heater cord.
  2. Connect the engine block heater cord to the diagonal brace strap.
  3. Install the new engine block heater cord straps.
  4. Connect the engine block heater cord to the engine block heater.
  5. Lower the vehicle.

Coolant Heater Cord Replacement 3.8L

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: The heater cord must not touch the engine, hot pipes, manifold, or any moving parts. Route the cord to the left front of the engine compartment securing with tie straps as necessary to prevent damage.

  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.