Rear

A/C EXPANSION VALVE

NOTE:
- Illustration shown with rear body cradle removed for clarity.
- Illustration shown with heater hoses and foam seal removed for clarity.

REMOVAL

WARNING: REFER TO THE APPLICABLE WARNINGS AND CAUTIONS FOR THIS SYSTEM BEFORE PERFORMING THE FOLLOWING OPERATION. FAILURE TO FOLLOW THE WARNINGS AND CAUTIONS COULD RESULT IN POSSIBLE PERSONAL INJURY OR DEATH.




1. Recover the refrigerant from the refrigerant system.
2. Drain the engine cooling system.
3. Disconnect and isolate the negative battery cable.
4. Raise and support the vehicle.
5. Remove the nut (1) that secures the underbody refrigerant lines (2) to the rear A/C expansion valve (3) which extends through the rear floor panel (4) behind the right rear wheel housing.
6. Disconnect the rear heater hoses (6) from the rear heater core tubes (5) which extend through the rear floor panel.
7. Disconnect the rear underbody refrigerant lines from the rear A/C expansion valve and remove and discard the O-ring seals and position the underbody line assembly out of the way.




8. Remove the two bolts (1) that secure the rear A/C expansion valve (2) to the rear evaporator tube tapping block (3).
9. Remove the rear A/C expansion valve from the rear evaporator tube tapping block and remove and discard the O-ring seals.
10. Install plugs in, or tape over the opened underbody refrigerant line and rear evaporator tube fittings and all rear expansion valve ports.

INSTALLATION




1. Remove the tape or plugs from the opened underbody refrigerant line and rear evaporator tube fittings and all rear expansion valve ports.
2. Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the rear evaporator tube fittings. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
3. Install the rear A/C expansion valve (2) onto the rear evaporator tube tapping block (3) which extends through the rear floor panel behind the right rear wheel housing and install the two bolts (1). Tighten the bolts to 11 N.m (97 in. lbs.).




4. Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the rear underbody refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the R-134a refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
5. Connect the underbody refrigerant lines (2) to the rear A/C expansion valve (3) and install the nut (1). Tighten the nut to 23 N.m (17 ft. lbs.).
6. Connect the rear heater hoses (6) to the rear heater core tubes (5) which extend through the rear floor panel (4) behind the right rear wheel housing and install the heater hose clamps securely.
7. Lower the vehicle.
8. Reconnect the negative battery cable.
9. Fill the engine cooling system.
10. Evacuate the refrigerant system.
11. Charge the refrigerant system.