GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1667235  Size: SH
  1. Remove the front air deflector. Refer to Front Air Deflector Replacement .
  2. Disconnect the coolant heater cord electrical connector (3) from the coolant heater electrical connector (2).

  3. Object Number: 1667231  Size: SH
  4. Remove the coolant heater bolt.
  5. Remove the coolant heater.

Installation Procedure


    Object Number: 1667231  Size: SH
  1. Position the coolant heater to the engine block.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the coolant heater bolt.
  4. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1667235  Size: SH
  5. Connect the coolant heater cord electrical connector (3) to the coolant heater electrical connector (2).
  6. Remove the front air deflector. Refer to Front Air Deflector Replacement .