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Auto Parts and Repairs
Air Conditioning and Coolant
Ford Expedition Eddie Bauer
Air Compressors

Where are the relays for power to the air conditioning compressor located?


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Wiki User
2004-07-16 10:26:59
2004-07-16 10:26:59

Hey Grady==You don't say what kind of car you have but most don't have relays on the compressor. Ihere is a cycling switch on the accumulator that when it is low will keep the compressor from engaging. GoodlukcJoe

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Depends on the make and model of the vehicle. On newer cars check the power distribution box where the relays are located.

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Check under the air filter housing for the PCM (power control module) if you could open it you would see about 5 relays on a circuit board one of the relays is for ac compressor. In general change the PCM.

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Mabe your compressor is not kicking on for some reason. Check to see if the front of your compressor starts spinning when you turn it on. If it don't check to see if there is power to the wires that go to your compressor. If there is power you have a bad compressor. If there is not check the fuses or relays.

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In a nutshell, it's a power source for propelling the vehicle, and powering the alternator, air conditioning compressor, and power steering pump.

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The fuses and relays are in the power distribution box.jd


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