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Re: no power to A/C Compressor
You should have a low resistance reading fromthe clutch wire to ground. The clutch has a coil that energizes with 12v and engages a clutch just like a relay engages. However, it should not be Zero ohms. So ditch the test light and get a ohm meter and check again.
If you put 12v directly to the clutch and it's didn't engage, then your clutch likely is bad.
How did you fully charge the system without the compressor running?
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Dad's taxi:
'88 XJ - 190K and going strong.
K&N, Ford Injectors, No other mods
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