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AC will not turn off

Tiny
TIGER MECHANICAL
  • MEMBER
  • 2004 FORD RANGER
  • 4 CYL
  • 2WD
  • MANUAL
  • 155,000 MILES
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
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Friday, April 15th, 2011 AT 10:30 PM

5 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the AC relay could be sticking
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Friday, April 15th, 2011 AT 10:52 PM
Tiny
TIGER MECHANICAL
  • MEMBER
  • 3 POSTS
Where is it located?
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Friday, April 15th, 2011 AT 11:24 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
As far as I know the compressor does run all the time on these.
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Thursday, April 28th, 2011 AT 10:26 AM
Tiny
TIGER MECHANICAL
  • MEMBER
  • 3 POSTS
Found the relay and replaced it. Working perfect now.
Thanks
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Thursday, April 28th, 2011 AT 12:57 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Ok Very good, I was thinking about the blower on possibly older by a year or two giving contant flow.
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Sunday, May 1st, 2011 AT 1:53 AM

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