GM Service Manual Online
For 1990-2009 cars only

Coolant Heater Replacement With LLR

Removal Procedure


    Object Number: 1313631  Size: SH
  1. Raise and support the vehicle only high enough to access the coolant heater (6) through the wheelhouse. Refer to Lifting and Jacking the Vehicle .
  2. Remove the left wheelhouse liner. Refer to Wheelhouse Panel Replacement .
  3. Disconnect the coolant heater cord (4) from the coolant heater (6).
  4. Remove the coolant heater from the engine block.

Installation Procedure


    Object Number: 2037178  Size: SH
  1. Locate the block heater hole on side the block.
  2. While lining up the retaining clip on the block heater to notch on block, insert the block heater and snap into place.

  3. Object Number: 1313631  Size: SH
  4. Connect the coolant heater cord (4) to the coolant heater (6).
  5. Install the left wheelhouse liner. Refer to Wheelhouse Panel Replacement .
  6. Lower the vehicle.