GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1422755  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the engine coolant heater cord (2) from the engine coolant heater (1).
  3. Remove the engine coolant heater cord straps.

  4. Object Number: 798931  Size: SH
  5. Disconnect the upper engine coolant heater cord (2) from the diagonal brace strap.
  6. Remove the engine coolant heater cord.

Installation Procedure


    Object Number: 1422755  Size: SH
  1. Install the engine coolant heater cord.
  2. Connect the engine coolant heater cord (2) to the engine coolant heater (1).
  3. Lower the vehicle.

  4. Object Number: 798931  Size: SH
  5. Route the engine coolant heater cord (2) to the air cleaner housing.
  6. Install the new engine coolant heater cord strap (1).