Heater Core: Service and Repair

REMOVAL

WARNING
- ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN AN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
- REVIEW THE WARNINGS AND CAUTIONS IN THE FRONT OF THIS SECTION BEFORE PERFORMING THE FOLLOWING OPERATION.

1. Remove HVAC housing.
2. Remove the bolts on the cover (1).




3. Unclip the spring clamps.
4. Remove the cover.
5. Remove the guide for the heating water flow pipe (2).




6. Remove the heating water return line (1).
7. Remove the heater core together with the heating water pipes.




8. Remove the retainer clip (1) and remove the pipe from the heater core.

INSTALLATION
1. Install the heating water pipes on the heater core then install the clip (1).




2. Install the heat exchanger together with the heating water pipes.
3. Connect the socket yoke for heating water flow pipe.




4. Install the heating water return line (1).




5. Install the guide (2) for the heating water flow pipe.
6. Install the cover (1).
7. Clip the spring clamps.
8. Install the bolts on the cover.
9. Install HVAC housing.