Air Conditioning and Coolant
Ford Escort LX
Late Model 1979-New Ford Mustangs

Why wouldn't the AC compressor turn?

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Wiki User
May 30, 2007 12:47PM

The most likely reason the compressor is not coming on is because you are low on freon. The low pressure switch will keep the compressor from cycling on because damage to your compressor would result. You can jumper across the low presure switch with the engine running and A/C turned on, ( for short time only) this will provide you with question is my compressor clutch good, or am I just low on freon. The AC compressor relay switch may need to be replaced