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(3) Lubricate new rubber O-ring seals with clean refrigerant oil and install them on the evaporator (4) Position the A/C expansion valve onto the evap- orator inlet and outlet tube fittings. (5) Install the two screws that secure the A/C expansion valve to the evaporator tube tapping plate (6) On RG models, connect the HVAC wire harness connector to the evaporator temperature sensor. (7) Remove the tape or plugs from the front liquid line rear section and suction line fittings for the (8) Lubricate new rubber O-ring seals with clean refrigerant oil and install them on the front liquid (9) Connect the A/C liquid and suction lines to the expansion valve. (10) Install the nut that secures the A/C liquid and suction lines to the expansion valve. Tighten the nut (11) Remove the tape or plugs from the liquid line rear section fitting and the receiver/drier outlet port. (12) Lubricate a new rubber O-ring seal with clean refrigerant oil and install it on the liquid line fitting. (13) Connect the liquid line fitting to the receiver/ drier outlet port. (14) Install the screw that secures the liquid line fitting to the receiver/drier. Tighten the screw to 11 (15) Connect the wire harness connector to the A/C pressure transducer. (16) Install the drain tube to the wiper module. tube (Refer to 9 - ENGINE/AIR INTAKE SYSTEM/ (18) Reconnect the negative battery cable. HEATING & AIR CONDITIONING/PLUMBING - (20) Charge the refrigerant system (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - HEATER CORE DESCRIPTION The front heater core (Fig. 18) is mounted into the HVAC air distribution housing, located behind the panel. The heater core is a heat exchanger made of rows of tubes and fins. The heater The heater core can be serviced without removing the air distribution housing from the vehicle. OPERATION Engine coolant is circulated through the heater hoses to the heater core at all times. As the coolant The heater core cannot be repaired and, if faulty or damaged, it must be replaced. Fig. 18 Heater Core 1 - FRONT HEATER CORE RS PLUMBING - FRONT 24 - 85 EXPANSION VALVE (Continued) |