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Old 08-07-2008, 08:58 AM   #11 (permalink)
mgraveman
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Join Date: Dec 2003
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Quote:
Originally Posted by lomile94 View Post
I believe that there would be no voltage to clutch coil if it was low on refrigeranr, right? My understanding is that the pressure switch must prove refrigerant pressure or the voltage will not be sent to clutch coil? Somebody please correct me if this is not right.
I will dissassemble clutch next. BTW- there is very noticeable play in the clutch.

Correct. If it's low on refrigerant, it would either have the compressor engaged or not have voltage to the clutch. You have a compressor cycling switch that is a NO switch, and does not close until a certian pressure is reached. It's on the return line located at the back of the compressor.

Please explain the play in the clutch. Does the face of the clutch have up and down movement? That's likely a bad front bearing in the compressor. I have the same problem in mine currently.
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1994 F-350 DRW PS w/ zf5
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