Heater Core: Service and Repair

Removal Procedure




1. Disconnect the negative battery cable.
2. Remove the instrument panel from the vehicle.
3. Remove the heater/air distributor case from the vehicle.
4. Disconnect the vacuum actuators from the vent/floor door and the defroster door.
5. Remove the vacuum actuators from the heater/air distributor case.
6. Remove the screws that secure the heater core cover to the heater/air distributor case assembly.
7. Slowly separate the lower heater core cover from the rest of the assembly.




8. Remove the screw and the bracket clamp that secure the heater core lines to the case.
9. Remove the spring clamp that secures the heater core body to the case.
10. Remove the heater core from the case.

Installation Procedure




1. Install the heater core into the case.
2. Secure the heater core lines to the case with the retaining bracket clamp and the screw.

Tighten
Tighten the heater core retaining bracket screw to Nm (lb.in).

3. Install the heater core body with the retaining spring clamp.




4. Install the heater core cover.
5. Install and tighten the screws that secure the heater core cover to the heater/air distributor case assembly.

Tighten
Tighten the heater core cover screws to Nm (lb.in).

6. Install the actuators for the vent/floor and the defroster doors.
7. Install the heater/air distributor case.
8. Install the instrument panel.
9. Fill the cooling system.
10. Connect the negative battery cable.