Heater Core: Service and Repair

Removal

WARNING: NEVER REMOVE THE RADIATOR CAP UNDER ANY CONDITIONS WHILE THE ENGINE IS OPERATING. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN DAMAGE TO THE COOLING SYSTEM OR ENGINE AND/OR PERSONAL INJURY. TO AVOID HAVING SCALDING HOT COOLANT OR STEAM BLOW OUT OF THE RADIATOR, USE EXTREME CARE WHEN REMOVING THE RADIATOR CAP FROM A HOT RADIATOR. WAIT UNTIL THE ENGINE HAS COOLED, THEN WRAP A THICK CLOTH AROUND THE RADIATOR CAP AND TURN IT SLOWLY TO THE FIRST STOP. STEP BACK WHILE THE PRESSURE IS RELEASED FROM THE COOLING SYSTEM. WHEN IT IS CERTAIN ALL THE PRESSURE HAS BEEN RELEASED, PRESS DOWN ON THE RADIATOR CAP (STILL WITH A CLOTH), TURN AND REMOVE.










1. Disconnect the heater water hose from the heater core, then plug the heater water hose.
2. Remove the instrument panel. Refer to Body and Frame/Interior Trim/Dash Board/Service and Repair/ Service and Repair
3. Remove heater air plenum chamber. Please refer to Housing Assembly HVAC/Service and Repair/ Service and Repair
4. Remove heater core from heater air plenum chamber.

Installation

To install, reverse the removal procedure.