Question about Jeep Grand Cherokee

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A/c clutch turns off and on. how can i keep the a/c clutch from turning off?

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This is usually an indication of refrigerant level in the AC system. It should be checked before the compressor clutch is damaged. Forcing it to stay on will cause extensive damage. Good Luck and thanks for using Fix-ya to get answers.

Posted on Apr 05, 2011

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The a/c clutch is suppose to rotate on and off under normal operation.
1. when the cabin temperature meets the thermostat setting the clutch goes off and comes back on then the air temperature goes up.
2. if your system is low in refrigerant gas your system will cycle on and off rapidly or not come on at all.
3. so what makes it cycle on and off: 1.- Cabin thermostat; 2.- low pressure switch in the engine compartment near or on the acumulator tank of the A/C unit.
your A/C unit has two ports on it a low pressure port on the suction side ( the fatter pipe) and the high pressure side ( the smaller diameter pipe).
you will need a gauge set to properly test for low refrigerant.
good luck

Posted on Apr 05, 2011

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