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The clutch does not sense air blowing through it. It only senses the condition of pressure between high and low side of compressor by way of some sort of expansion valve. Older Fords had an expansion valve filled with gas that fed back to the compressor. I'm sure now it is an electronically operated switch. If it is really hot and the temp of high pressure gas coming back to the compressor is super high it will continue to run to put as much low pressure liquid out until the high side comes down or equalizes then it will cycle on and off as needed.
It sounds like things are working properly. I don't understand what you think your problem is. If it cycles on and off rapidly it is either a low charge of refrigerant or in some case an over charge.
Last edited by fordmaster; 06-22-2009 at 06:08 PM.
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