A/c works well and after
Your a/c compressor operates on a pressure switch, when there is not enough freon in the system it will kick on and off, you can get a refill kit at a local parts store that has a gauge on the can so you do not overfill it. that will also cause the compressor to kick on and off. ------------The AC refrigerant is low, either is leaking or its low.Get the AC pressure test done at local car garage.If the AC refrigerant is checked low, then it has to be charged.But if the pressure test also checked leak with low refrigerant, then compressor has to be repaired, in some cases it get repaired, in some cases the compressor needs to be replaced, if refrigerant leak is detected.If leak is minor,m then refrigerant sealant are available.--------- But if its major, then compressor replacing is necessary.------------- But if in AC pressure test all checked ok, then in that case the possibility is low side cycling switch, jumper the switch and see if it stays on, if it does, replace the switch.--------- This sounds like a low refrigerant problem, but you will need to have gauges on this to determine this, the low side should be around 30, and the high should be btween 150 and 250, if the low goes below 20, the compreesor will shut off, this is a low pressure situation, if the pressure gets to around 400 or 500, the compressor will shut off, this is usuakly caused by the condensor fan not coming on or a restriction in the system, if the pressures are normal, then it is a problem in the electrical part of the system.Also the AC drive belts needs to be checked.The ECT( engine coolant temperature) sensor.if the sensor gets faulty, it will sense over heated and stop the ac from running.The sensor gets to its normal range and again AC works.again it gets overheated.May be due to faulty sensor the cycle is repeating.But first get the AC pressure and Refrigerant level checked.This will confirm the problem.---------
This should help.Thanks.Helpmech.