AC Question

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CAPTNPETEE
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Hi there. I have a '97 Ford Ranger (2.3L, Manual, 167K) which, no matter what setting I use, i.e. heater on high, fan on 2, bi-level vent, will have the AC Compressor engage. (This scenario is true no matter what settings...) AC works fine... when I want AC and set to those parameters I get nice and cold. But even when I want just outside air or inside recirculation, or heat, it's always pre-cooled by the AC compressor engaging. When I turn the system off (fan sw. off) then the compressor is off also. Any suggestions? Easy solution?
Apr 18, 2007 at 10:33 AM
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MERLIN2021
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Little more info needed! Is this an auto climate control system?
Apr 19, 2007 at 9:43 AM
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CAPTNPETEE
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Thanks for the replies.

To merlin2021, no, it's all manual. Three controls, one for temp, one for fan speed, and one for vent control.

To justanold, yes, factory installed. But I am a little unclear... if I read you correctly, then although I am turning on heat at bi-level, my a/c compressor will engage? So I am heating precooled air? Not logical... help me understand.
Apr 20, 2007 at 6:30 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
If it is set up as an always on a/c it's done to remove moisture from the cars interior. Keeps windows from fogging.
Apr 20, 2007 at 10:24 AM
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CAPTNPETEE
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Wow. Well, I see the logic now, just the first time I've encountered this approach. Means that everything is working as it should.

Thanks for taking the time, guys.
Apr 20, 2007 at 5:48 PM
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