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Unread 12-02-2016, 00:02
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Re: Compressor won't turn off - PCM?

Another thing to check: make sure the pressure switch isn't shorted out; with the compressor running, unplug the switch. If the compressor keeps running, it's a PCM issue (or swarf intrusion as some have mentioned). If not, the switch or its wiring is shorting out.
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