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Discussion Starter #1
Hey guys, my AC has stopped working, To check and make sure it was getting power to Engage the clutch, I put an digimeter on the wire going to the compressor, and then grounded the negative to the frame.
After starting the motor and letting it run a few minutes and turning on the AC, I got a -43 volts DC.

Should not this be positive. I know I am having ground problem with my turn signals. And I have cleaned the frame strapped to the battery. Next, is the ground under the dash.

Any thoughts, I expected this to be 13 volts positive at least.

Oh the pressure remained the same on the freon side running as not running the compressor, which means to me the compressor has bit the dust or I have an electrical problem.
THX
Kelly
 

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Kelly, You can see if the clutch is turning with the pulley. If it is hard to tell use a mirror and a light to see it. If it is not turning you may have no current to the clutch. Naturally this would mean no head pressure and the two sides would be equal pressure. If the clutch is slipping, like grabbing and letting go, the compressor will not build up head pressure. If the clutch is turning with the pulley and you have equal pressure on both sides you have either a completely empty system of freon or the compressor is shot. Magoo
 

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Discussion Starter #3
Hey Magoo, I'm back, the kids got a hold of the computer. OK they killed it. After month to month it recovered.
No more AC problem, it was a bad connector by the compreesor. After cleaning, we have had AC all weekend. 50 to 55 on the highway and city traffic.
THX
Kelly
 
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