GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Turn the ignition OFF.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Disconnect the coolant heater cord from the coolant heater.

  4. Object Number: 1837206  Size: SH
  5. Remove the coolant heater.

Installation Procedure


    Object Number: 1837206  Size: SH
  1. Install the coolant heater.
  2. Connect the coolant heater cord to the coolant heater.
  3. Lower the vehicle.