Heater Core: Service and Repair

REMOVAL




1. Remove the HVAC housing and place it on a workbench.

2. Disassemble the HVAC housing.

NOTE: If the foam seal around the heater core is deformed or damaged, the seal must be replaced.

3. Carefully lift the heater core (1) out of the lower half of the HVAC housing (2).

NOTE: If the rubber flange around the heater core tubes is deformed or damaged, the flange must be replaced.

4. If required, remove the rubber flange (3) from around the heater core tubes (4).

INSTALLATION




1. If removed, install the rubber flange (3) over the heater core tubes (4).

NOTE: Make sure that the foam seal and the rubber flange are properly positioned in the HVAC housing.

2. Carefully install the heater core (1) into the lower half of the HVAC housing (2).

3. Assemble the HVAC housing.

NOTE: If the heater core is being replaced, flush the cooling system.

4. Install the HVAC housing.