Heater Core Case: Service and Repair

Heater Core and Evaporator Core Housing

Removal

All vehicles
1
WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.
Raise and support the vehicle.
2 Remove the cover and disconnect the battery ground cable. For additional information, refer to Specifications [1][2]Battery
3 Remove the instrument panel. For additional information, refer to Instrument Panel Instrument Panel
4 Recover the A/C refrigerant.

Vehicles without supercharger
5 Drain the coolant. For additional information, refer to Cooling System Draining, Filling and Bleeding - Vehicles Without: Supercharger

Vehicles with supercharger
6 Drain the coolant. For additional information, refer to Cooling System Draining, Filling and Bleeding - Vehicles With: Supercharger

All vehicles




7
CAUTION: Always plug any open connections to prevent contamination.
Disconnect the heater supply and return hoses.
- Position a container to collect the fluid.
- Carefully release the clips.




8
CAUTION: Before disconnecting or removing the components, ensure the area around the joint faces and connections are clean and dry. Plug open connections to prevent contamination.
Disconnect the A/C lines.
- Remove the bolt.
- Remove and discard both O-ring seals.




9 Remove the heater and evaporator core housing.
- Position the carpet aside for access.
- Release both footwell lamp holders.
- Disconnect the 2 electrical connectors.
- Remove the 5 nuts.
- Remove the bolt.

Installation

All vehicles
1 Install the heater and evaporator core housing.
2
NOTE:
Lubricate the O-ring seals with clean refrigerant oil.
Connect the A/C lines.
- Install new O-ring seals.
- Tighten the bolt to 6 Nm (4 lb.ft).
3 Connect the heater supply and return hoses.
- Secure the clips.
4 Install the instrument panel. For additional information, refer to Instrument Panel Instrument Panel
5 Connect the battery ground cable and install the cover. For additional information, refer to Specifications [1][2]Battery

Vehicles with supercharger
6 Refill and bleed the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding - Vehicles With: Supercharger

Vehicles without supercharger
7 Refill and bleed the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding - Vehicles Without: Supercharger

All vehicles
8 Fill the A/C system.