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Old 10-12-2015, 10:47 PM   #11
hammered68
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Join Date: Feb 2012
Location: Blair, Ok
Posts: 16
Re: 71 Cheyenne AC Help

Ok, so I've searched high and low on everything that we spoke about thus far. Today I began tracing wires and followed the orange 12 ga wire from the anti diesel relay to the high speed relay back to the fuse panel. I found it had no power, anywhere along the route, but still had low and medium speed on my fan. Further searching, I found the fuse just below this terminal, labeled for the glove box & spot lamp burned out. I replaced this fuse and everything came to life. Now, I have constant hot to this 12 ga wire even when the ignition is off. Is this supposed to be a constant hot? I noticed that when I turn off the ignition with the a/c on, it will stay on for a couple of seconds after the ignition is off.
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