HVAC Housing - Installation

HOUSING-HVAC

NOTE: LHD model shown in illustrations. RHD model similar.





1. Position the HVAC housing assembly (2) to the passenger side of the dash panel (3). Be certain that the housing is correctly located over the two dash panel mounting studs.
2. Install the two nuts (1) that secure the HVAC housing assembly to the dash panel. Tighten the nuts to 4.5 Nm (40 in. lbs.).
3. Install the rear floor duct Floor Ducts - Installation.
4. Install the instrument panel Instrument Panel - Installation.




5. Install the nut (6) that secures the HVAC housing assembly to the engine compartment side of the dash panel (5). Tighten the nut to 4.5 Nm (40 in. lbs.).
6. Remove the previously installed plugs or caps and connect the heater hoses (4) to the heater core tubes.
7. Remove the tape or plugs from the refrigerant line fittings and the expansion valve ports.
8. Lubricate new rubber O-rings with clean refrigerant oil and install them onto the liquid and suction line fittings. Use only the specified O-ring seals as they are made of special materials compatible to the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
9. Connect the A/C liquid and suction line assembly (1) to the A/C expansion valve (3).
10. Install the nut (2) that secures the A/C liquid and suction line assembly to the A/C expansion valve. Tighten the nut to 23 Nm (17 ft. lbs.).
11. Reconnect the negative battery cable.
12. If the heater core is being replaced, flush the cooling system Service and Repair.
13. Refill the engine cooling system Service and Repair.
14. Evacuate the refrigerant system Refrigerant System Evacuate.
15. Charge the refrigerant system Refrigerant System Charge.
16. Initiate the Actuator Calibration function using a scan tool HVAC System Test.