Operation CHARM: Car repair manuals for everyone.

Rear

CORE-HEATER

REMOVAL




1. Remove the rear HVAC housing and place it on a workbench.
2. Carefully remove the foam seal (1) from the flange (2) located at the bottom of the rear HVAC housing (3). If the seal is deformed or damaged, it must be replaced.
3. Partially bend the inner half of the flange downward and remove the heater core tubes (4) from the flange.




4. Release the two tabs (1) that secure the rear heater core (2) in the rear HVAC housing (3).
5. Carefully pull the rear heater core out of the end of the rear HVAC housing. If the foam seals on the heater core are deformed or damaged, they must be replaced.
6. If required, remove the two retaining clips that secure the heater core tubes to the rear heater core and remove the tubes from the heater core. Remove and discard the two O-ring seals.

INSTALLATION




1. If removed, lubricate new rubber O-ring seals with clean engine coolant and install them onto the heater core tube fittings. Use only the specified O-rings as they are made of a special material for the engine cooling system.
2. If removed, install the heater core tubes onto the rear heater core (2) and install the two retaining clamps. Make sure that the clamps are installed correctly and securely.
3. Install the rear heater core into the end of the rear HVAC housing (3). Make sure that the foam seals are properly installed and that the two retaining tabs (1) are fully engaged.




4. Partially bend the inner half of the flange (2) located at the bottom of the rear HVAC housing (3) downward and install the heater core tubes (4) into the flange.
5. Install the foam seal (1) onto the flange. If the seal is deformed or damaged, it must be replaced.

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

6. Install the rear HVAC housing.