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  #1  
Old April 27th, 2008, 12:55 PM
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Air Conditioning Problem

I just wanted to double-check with everyone on my AC problem before proceeding. My AC works when the engine is cold, but once it warms up it kicks off. The Compressor works of course, as does the electric fan in front of the radiator. The motor seems to cool just fine. So am I correct to assume it's that temp cutoff switch on the thermostat housing? And is this a readily available part? Is it hard to get out?

My next step is to get the motor warmed up and try to bypass that switch to verify.`
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  #2  
Old April 27th, 2008, 01:48 PM
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I don't know if the 94 AC takes its temp signal from the computer or just from a switch, but you're on the right track with the diagnosis. Its an of/off thing with the switch - IIRC, the natural state is +12v, and a lack of voltage shuts her off.
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Old April 27th, 2008, 03:50 PM
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(stalkervoice)You really didn't need it in Shirlington this morning, did you?(/stalkervoice)
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Old April 27th, 2008, 03:58 PM
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Quote:
Originally Posted by Abrooks
(stalkervoice)You really didn't need it in Shirlington this morning, did you?(/stalkervoice)


Good thing I was packing heat you sicko!

Where were you and why didn't you say hi?
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Old April 27th, 2008, 04:06 PM
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We were having brunch at Carlyle, watched y'all walk by. If I hadn't been knee deep into filet and poached eggs, I would've run out. What brought you up to the barrio?
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Old April 27th, 2008, 04:24 PM
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We LOVE the Carlyle. We decided the try the brunch this time. I had the steak and eggs benedict. Wasn't too impressed, although I am not a heavy breakfast kinda guy. Wife loved the french toast though.

Hey, what am I doing changing the subject of my own post?
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Old April 27th, 2008, 05:08 PM
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No shit, I had the same thing and was also unimpressed. I thought the meat was flavorless, the eggs were only warm and whatever that bread was under it all was burnt. That said, that was one mediocre meal out of the hundreds I've had there. Luna is always a winner, too.

I've no idea what's wrong with your AC.
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Old April 27th, 2008, 05:31 PM
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Funny, you described my breakfast perfectly! We must of had the same chef. I'll stick with lunch and dinner next time.
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Old May 6th, 2008, 10:15 AM
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So I finally had a chance to check under the hood. I found the temp switch on the thermostat housing and with the vehicle running (cold) and the AC on the fan and compressor turn and the AC is cold. When I unplug the two wires from the switch they of course stop. So I ran a jumper across the two wires and after the engine warms up the the AC does not work and the compressor does not turn. Am I checking the wrong temp switch?
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Old May 6th, 2008, 10:58 AM
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On the Tdi, the AC uses its own temp switches, can't say for sure on the V8. On the 97 it takes it's temp signal from the ECU.
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