2001 Ford Ranger A/C Compressor won't engage - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 3 (permalink) Old 08-30-09, 06:06 PM Thread Starter
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confused 2001 Ford Ranger A/C Compressor won't engage

When I turn the switch to Max A/C or A/C the compressor will not engage. After a little while it might engage or it still may not. I have checked the R-134a pressure and they are in the normal range according to the manual. Any suggestions on what the problem could be? Thanks!!

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post #2 of 3 (permalink) Old 08-30-09, 06:29 PM
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Re: 2001 Ford Ranger A/C Compressor won't engage

Here is the wiring diagram (in 2 parts). If you need an explanation on them, post back. In the second diagram, it shows the pressure swittches. they connect ground to the PCM to operate the relay for the compressor. They ahve been known to cause problems. as well as other items.
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post #3 of 3 (permalink) Old 08-30-09, 07:21 PM
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Re: 2001 Ford Ranger A/C Compressor won't engage

Quote:
Originally Posted by mikey1974 View Post
When I turn the switch to Max A/C or A/C the compressor will not engage. After a little while it might engage or it still may not. I have checked the R-134a pressure and they are in the normal range according to the manual. Any suggestions on what the problem could be? Thanks!!
If you checked the pressure and it shows normal range w/o the compressor running then you are low. What pressure reading are you seeing?
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