GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 932155  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

  2. Object Number: 1237924  Size: SH
  3. Disconnect the coolant heater power supply cord (1) from the coolant heater.

  4. Object Number: 932155  Size: SH
  5. Pry outward on the heater retaining clip.
  6. Pull the heater (1) from the engine block.

Installation Procedure


    Object Number: 932155  Size: SH
  1. Install the coolant heater (1) into the engine block. The retaining clip should snap into place.

  2. Object Number: 1237924  Size: SH
  3. Connect the electrical connector to the coolant heater.
  4. Lower the vehicle. Refer to Lifting and Jacking the Vehicle .