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Old 07-18-2009, 19:05   #1 (permalink)
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A/C Compressor

Murphy's law, replace something just so something new can break. I drove my 04 CVPI to Wyoming only to have the A/C cut out half-way to my destination. When I finally got to my house, I popped the hood and noticed a small piece of the serp belt split off and wound itself around my A/C compressor >:(, the clutch part of it. Naturally I was amazed at how this little belt got itself into that kind of position so I started to unwind it from the pulley.

This did not fix the problem, clutch still will not spin when A/C is engaged. I can hand spin the clutch, but nothing is turning it on anymore. Is my compressor hosed? Do I need to replace the clutch maybe? Any help is much appreciated!
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Old 07-18-2009, 20:15   #2 (permalink)
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Re: A/C Compressor

tinkering around with a LOT of things, the front part of the compressor does spin by hand. Turn on car, turn control to vent and blower starts, turn control to norm A/C and blower power does not change and temp def. does not change. Going to front of car, front part is not spinning but all pulleys spin fine (belt is not being dragged across compressors pulley). I can only assume that something was damaged when that belt wrapped around the front part of the compressor, but is it the compressor that is damaged? Checked all fuses, everything is in the norm there.
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Old 07-18-2009, 20:30   #3 (permalink)
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Re: A/C Compressor

It's possible that the belt piece that wrapped around broke the connection for the clutch. See if there's power, (with a jumper wire to a test light or voltmeter) to the wire with it on and running.
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Old 07-19-2009, 07:36   #4 (permalink)
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Re: A/C Compressor

there is a power clip that attaches to the accumulator, the wire jacket got beat through while that belt flipped around. The pvc coating got beat through a little as well and there is some copper showing. I dont see a break in the copper strand but I dont know how to test for power on that clip. I shoved the two prongs into the clip that seats onto the top of the accumulator and fired up the car and turned on the A/C. But there was no signs of power going through the Ohmmeter. Should there be, or does power only cycle through this AFTER the clutch gets power?

I can see that on the wire harness this "clip" forms a T, right side of the T goes to the accumulator and attaches there while the left side of the T attaches to the Compressor itself. The clip going into the compressor shows no damage from said whipping belt.
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Old 07-19-2009, 07:46   #5 (permalink)
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Re: A/C Compressor

Using a multimeter, would it be effective to unclip the compressor power clip and shove the probes into the ends? Would that tell me if power is getting to the clutch? Im guessing 12v should be the right amount
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Old 07-19-2009, 08:50   #6 (permalink)
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Re: A/C Compressor

Made a jumper to jump the power on the switch attached to the accumulator, jumper failed to carry power to the clutch. Going to open up the wire harness to test for continuity between the lead from harness to wire to switch. Im thinking that there is a break somewhere in the line. Like you said that would be the most logical since that belt would have given the wire a good beating until the wire submitted. "high hopes" that all I have to do is replace a section of wire with some butt splices.
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Old 07-19-2009, 12:17   #7 (permalink)
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Re: A/C Compressor

Sounds like you're on the right track.
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Old 07-19-2009, 13:15   #8 (permalink)
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Re: A/C Compressor

Stumped, no voltage is going to the drier/accumulator switch. Im not sure which one is the supply wire, but neither of them yield voltage when probed. Continuity is fine, probed both wires. Wires are Pink w/blue line and Pink w/black line. Can't find the break yet :(. I hate electrical!

Anyone know WHICH wire is the supply wire going into the drier? Would it be safe to carry a 12v current straight to the switch just to see if the clutch will even work?
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Old 07-19-2009, 14:03   #9 (permalink)
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Re: A/C Compressor

I don't have a diagram for an 04 but there should be 2 switches. The pink blue on 01s comes from the cycling switch. The other is black and yellow and goes to the PCM. You need a proper diagram to follow it through.
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Old 07-19-2009, 14:58   #10 (permalink)
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Re: A/C Compressor

Bwahahaha, I have found the problem! When the belt snapped it must have wrapped around the wires like Indiana Jones and the force exerted on the line pulled the copper INSIDE the jacket at a sharp fast 90 degree angle breaking BOTH the lines going to the drier switch and FROM the drier switch. repairing the switch, pulling it apart and putting it back together :D. Please let this be the ONLY problem!
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