AC will not turn off

2004 FORD RANGER
155,000 MILES • 4 CYL • 2WD • MANUAL
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TIGER MECHANICAL
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I just bought a used 2004 Ford Ranger where the AC compressor will not turn off. With the the climate controls in the off position the AC compressor will run. I have to un plug the compressor for it not to run. If I leave it plugged in overnight it will kill the battery. The unit pumps out ice cold air.

I am a refrigeration technician so I am pretty good with a meter and a set of guages. I will buy an AUTO AC adaptors to hook up to my guages if i need to.

When the truck is off with no key in the ignition and I unplug the copressor I will hear some kind of solenoid clicking.

Tom
Apr 15, 2011 at 3:30 PM
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RASMATAZ
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Check the AC relay could be sticking
Apr 15, 2011 at 3:52 PM
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TIGER MECHANICAL
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Where is it located?
Apr 15, 2011 at 4:24 PM
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MERLIN2021
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as far as I know the compressor does run all the time on these.
Apr 28, 2011 at 3:26 AM
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TIGER MECHANICAL
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Found the relay and replaced it. Working perfect now.
Thanks
Apr 28, 2011 at 5:57 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
Ok Very good, I was thinking about the blower on possibly older by a year or two giving contant flow.
Apr 30, 2011 at 6:53 PM
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