GM Service Manual Online
For 1990-2009 cars only

Engine Coolant Heater Replacement - Right Side RPO LD8

Removal Procedure


    Object Number: 1667236  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the coolant heater cord electrical connector (2) from the coolant heater electrical connector (1).

  3. Object Number: 1667234  Size: SH
  4. Remove the coolant heater bolt.
  5. Remove the coolant heater.

Installation Procedure


    Object Number: 1667234  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: 1667236  Size: SH
  5. Connect the coolant heater cord electrical connector (2) to the coolant heater electrical connector (1).
  6. Lower the vehicle.