A/C Issue

[truckman72]

Well its that time of year again. I have returned back to Kansas from Denver as I wrapped up the academic year, which means I pull my truck out from my parents for the summer. For those of you not familiar with Midwest Summers, they tend to be very sticky and hot; very different than the cool mountain climate of Colorado! Air Conditioning in Kansas in the summer is very necessary! Especially if you are overweight and get sweaty easily!

After some cleaning, firing up the engine, and turning on the a/c, I did some digging around and realized that the door inside the system will flip open to the windshield vents and close off the three front dash vents, but won't flip back to the other way on its own.

Any idea want might be causing this to happen? It is a 5.3L engine with the Vintage Air system. To be honest, I'm not to knowledgeable about this system as my Father put it in a couple of years ago while I was at school.

[Wrenchbender Ret]

I have had a couple of Vintage -air A/c but have never had this problem. They have very good technical help system. You might call or e-mail them & they will help you.
George

[Davidf]

Not sure which door you are talking about. But both vacuum operated doors are suppose to have springs to help them return to neutral position (i.e no vacuum). Usually, these springs are long gone. If the pivots are in good shape and not binding, the doors may operate normally without the springs.