Mechanics

AC WILL NOT TURN OFF

2004 Ford Ranger • 4 cylinder 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
Avatar
Tiger Mechanical
April 15, 2011.




Check the AC relay could be sticking

Tiny
Rasmataz
Apr 15, 2011.
Where is it located?

Tiny
Tiger Mechanical
Apr 15, 2011.
As far as I know the compressor does run all the time on these.

Merlin2021
Apr 28, 2011.
Found the relay and replaced it. Working perfect now.
Thanks
AD

Tiny
Tiger Mechanical
Apr 28, 2011.
Ok Very good, I was thinking about the blower on possibly older by a year or two giving contant flow.

Merlin2021
May 1, 2011.

AD