Front

VALVE-A/C EXPANSION

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. Disconnect and isolate the negative battery cable.
3. Remove the air intake tube and the resonator.
4. Remove the nut (1) that secures the A/C suction line (2) and the A/C liquid line (3) to the A/C expansion valve (4).
5. Disconnect the A/C suction and liquid lines from the A/C expansion valve and remove and discard the O-ring seals.
6. Install plugs in, or tape over the opened refrigerant line fittings and position the lines out of the way.




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

INSTALLATION




1. Remove the tape or plugs from the evaporator tube fittings and all of the expansion valve ports.
2. Lubricate new O-ring seals with clean refrigerant oil and install them onto the evaporator tube fittings. Use only the specified seals 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 A/C expansion valve (2) onto the evaporator tube tapping block (3).
4. Install the two bolts (1) that secure the A/C expansion valve to the evaporator tube tapping block. Tighten the bolts to 11 N.m (97 in. lbs.).




5. Remove the tape or plugs from the A/C suction line (2) and the A/C liquid line (3).
6. Lubricate new O-ring seals with clean refrigerant oil and install them onto the A/C suction and liquid lines. Use only the specified seas 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.
7. Connect the A/C suction and liquid lines to the A/C expansion valve (4).
8. Install the nut (1) that secures the A/C suction and liquid lines to the A/C expansion valve. Tighten the nut to 23 N.m (17 ft. lbs.).
9. Install the air intake tube and the resonator.
10. Reconnect the negative battery cable.
11. Evacuate the refrigerant system.
12. Recharge the refrigerant system.