Hey everyone,
I've looked through the forums and I can't find anything on this. (Although I SWEAR that I've seen it...maybe I am just not searching with the correct terms) Here's my problem.
I have a 2000 Windstar w/ the 3.8l. The A/C works fine, with one very small exception. When the engine is under a moderate strain, such as climbing a small hill on the freeway, the a/c vents automatically switch to the defrost. If I release the gas pedal, they pretty quickly switch back to vents. Thats about the only time I get this problem, but man is it annoying.
My brother has a 2003 that did the exact same thing. His solution involved removing the radio and reaching in and wiring the vacuum solenoid into the vent position. Obviously, it will work, but then you're tied to vent only operation. I'd like to just fix the stinking problem and be done with it. I've checked for obvious vacuum leaks and don't see any.
Does anyone have experience with this problem and can you steer me in the right direction. I'm just curious as to why you'd have the problem under moderate strain, but not heavy acceleration or idle. Look forward to your feedback.
Mark