Housing Assembly HVAC: Service and Repair

Heater Core and Evaporator Core Housing (82.25.21)

Removal

All vehicles
1. Raise and support the vehicle.

WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.

2. Remove the cover and disconnect the battery ground cable.
3. Remove the instrument panel.
4. Recover the A/C refrigerant.

Vehicles without supercharger
5. Drain the coolant.

Vehicles with supercharger
6. Drain the coolant.

All vehicles
7. Disconnect the heater supply and return hoses.
- Position a container to collect the fluid.
- Carefully release the clips.

CAUTION: Always plug any open connections to prevent contamination.







8. Disconnect the A/C lines.
- Remove the bolt.
- Remove and discard both O-ring seals.

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.







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. Connect the A/C lines.
- Install new O-ring seals.
- Tighten the bolt to 6 Nm (4 lb.ft).

NOTE: Lubricate the O-ring seals with clean refrigerant oil.

3. Connect the heater supply and return hoses.
- Secure the clips.
4. Install the instrument panel.
5. Connect the battery ground cable and install the cover.

Vehicles with supercharger
6. Refill and bleed the cooling system.

Vehicles without supercharger
7. Refill and bleed the cooling system.

All vehicles
8. Fill the A/C system.