Air conditioner will not work?

Most likeyl out of freon form a leak. Have the system tested for a leak.

Roy

Is it the fan that stops working or does the AC change direction, or do you loose cool air?

It the blower motor doesn't work on any setting, chances are the blower motor resister is okay and it's a relay problem. When the resister goes bad, it will normally work on high. Check the relay in the power distribution box.

Expansion valve

YOU HAVE AN EXPANSION VALVE

The front "H" valve-type thermal expansion valve (TXV) is located at the dash panel between the liquid and suction lines, and the evaporator coil. The assembly consists of an H-valve body and a thermal sensor. High-pressure, low temperature liquid refrigerant from the liquid line passes through the expansion valve orifice, converting it into a low-pressure, low-temperature mixture of liquid and gas before it enters the evaporator coil. The expansion valve is a factory calibrated unit and cannot be adjusted or repaired. If faulty or damaged, the expansion valve must be replaced.

TO REMOVE
Recover the refrigerant from the refrigerant system. (
Disconnect and isolate the battery negative cable.
Remove the air cleaner housing from the right side of the engine compartment.
Disconnect the drain tube from the wiper module drain on the right side of the engine compartment.
Disconnect the headlamp and dash wire harness connector for the A/C pressure transducer from the transducer on the front liquid line rear section
Remove the screw that secures the front liquid line rear section fitting to the top of the filter-drier.
Disconnect the liquid line fitting from the filter-drier outlet port.
Remove the seal from the liquid line fitting and discard.
Install plugs in, or tape over the opened liquid line fitting and the filter-drier outlet port.
Remove the nut that secures the suction line and liquid line fittings to the stud on the expansion valve.
Disconnect the suction line and liquid line fittings from the expansion valve and move the lines out of the way.
Remove the seals from the suction line and liquid line fittings and discard.
Install plugs in, or tape over the opened suction line and liquid line fittings and both expansion valve ports.
Remove the two screws that secure the expansion valve to the evaporator tube tapping plate.
Disconnect the HVAC wire harness connector for the evaporator temperature sensor from the sensor on the top of the expansion valve.
Remove the expansion valve from the evaporator inlet and outlet tube fittings.
Remove the seals from the evaporator inlet and outlet tube fittings and discard.
Install plugs in, or tape over the opened evaporator inlet and outlet tube fittings and both expansion valve ports.

Check to see if there is power to the compressor. If there is, make sure the freon level is within spec. Also, check to see if the cycle switch is good.

First check relay/fuse. If good, then you'll need to check the level of R134a in the system. If level gets low, the compressor won't engage. If level is low, you can recharge with a can that contains conditioners/dyes. It will not fix the leak though. But it will tell you if the compressor wasn't engaging because level was low or if there's another problem. And the dye will help you locate the leak.

Do both front and rear act the same or is one cold and the other not so much?

Please me know, Ken

Hi:

It sounds like the blower switch is bad. Have you had anyone look at it for you? Based on what you are saying, it sounds like there is a short in the switch itself.

Joe