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Find the low pressure sensor, it should be near the receiver/dryer if you have one. Pull the connector to the sensor and see if there are connections for two pins. If so, turn on the compressor and briefly jumper the two wires. If the compressor turns on, you either have a bad sensor or low refrigerant. If that isn't the problem, you may have a bad relay, clutch, switch or who knows what without checking it further.

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Q: Why will the compressor not turn on the AC system causing it not to blow when it has freon and no leaks?
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Why would your AC when set on Maximum keep shutting off?

It is probably getting low on freon. When the system has minor leaks and the freon pressure lowers the system begins to shut off the compressor which circulates the freon through the system to protect the compressor and other components from damage. Have the system recharged, or add freon on your own. You can now get freon from many parts stores.


Ac compressor not coming on in a 1992 Buick?

Either low on freon or the low pressure switch is bad. You are gonna have to put a set of gauges on it. Usually this happens when the freon leaks out of the system. If there is not enough freon in the system, the low pressure switch keeps the compressor from coming on and being burned up.


What is the difference between opened and closed system of air conditioning?

A closed system would be full of freon without any leaks and a opened system would have no freon or has leaks...........


Looses freon with in a month 2000 grand cherrokee no visible leaks?

Bearing on the compressor or from a point that you can't see. I would bet on the compressor though.


What does it mean when your ac stops blowing cold air?

It usually means that your system has developed a leak. Your AC system is charged with freon gas. If a certain amount leaks out, a safety device prevents the AC compressor from starting. Without the compressor, no cold air.


How do you find freon leaks Chevy Express?

You have to have a freon leak detector. Are you can put freon dye in the system and find a leak that way.


How do you change the air conditioner compressor on a 1995 Dodge Caravan?

if you havent ever changed one before then you shouldn't mess with it, the freon inside the compressor is poisionest, it needs to be drained, new compressor installed, filled with dye to test for leaks, drained again and then re-fill with freon.


Why does the AC stop working on a 2000 Hyundai sonata at idle?

most likely low on freon. while driving the ac compressor spins faster so it might cool better with low freon at higher engine rpm. have your system charged and checked for leaks.


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If the system does not have any leaks, it will last forever.


Why is my 97 Grand Cherokee Laredo Air conditioning pump not staying on. The electric clutch turns it on but turns off again after 2 seconds Keeps repeating every 10 seconds?

97 Cherokee ACFreon is a little low. Another ViewpointThe freon is more than just a little low. It so low that if you continue to operate the compressor without a proper recharge, it will probably ruin the compressor as its lubricating oil is circulated throughout the system with the freon, and if the freon is that low, it does not circulate, and the compressor will eventually freeze up. Get an AC professional to trouble shoot the system to correct the leaks, verify the correct amount of oil and freon recharge.j3h.


How do you check air conditioning in 1993 Acura Vigor 93?

Check to see if your A/C compressor comes on during cooling. If it does, then it's probably time to recharge your freon. (Make sure you have no leaks in the system!) Most likely your A/C uses the old freon known as R-12 which is harmful to the environment. You can buy conversion kits for converting to the new system that uses R-134a. But it is best to have a trained professional do the job who can dispose of the old gas properly. If the compressor does not come on, it could mean there is not enough freon present to engage it, a fuse is out, or the compressor itself has "seen better days".


Where to look for a leak in a air condition system in a 1993 ford ranger?

Put a dye type refrigerant and watch for leaks at fittings, hoses, and compressor Put a dye type refrigerant and watch for leaks at fittings, hoses, and compressor Put a dye type refrigerant and watch for leaks at fittings, hoses, and compressor Put a dye type refrigerant and watch for leaks at fittings, hoses, and compressor