A/C operation
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Senior User
Joined: Apr 2003
Posts: 123
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From: Caledonia, Ontario
A/C operation
Hi All, since I have no idea how my a/c system works I thought I would ask this question. On my 99 Explorer, how do I know if my a/c is stuck on. With the switch in the blend (feet and vent) position and the temp **** turned to the cool side I am getting a/c out of the vents. With the switch in off my gas milage improves. On the switch blend is to the right of off and the a/c and a/c max are on the left of off. The truck is not hard to start so I don't think the compressor is on all the time (otherwise I would burn out my starter, right?). How is the a/c system supposed to work? Thanks for any help.
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
A/C operation
The Haynes manual will explain how it works and how to check it. HowStuffWorks probably has some good animated diagrams, too.
Post Fiend
Joined: Jun 2003
Posts: 5,643
Likes: 8
From: NE Texas
A/C operation
That's the way Ford made them - and the A/C is still on in the VENT/FLOOR position even if you turn the heat up. Yep, that's to cool off all us older folks feet!
That's how it is on my '99 SD anyway - factory installed
That's how it is on my '99 SD anyway - factory installed
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