Air Conditioning problem
2004 Ford Expedition V8 Two Wheel Drive Automatic 143257 miles
Here is what I know. I have a vacuum leak that is causing my ac to switch from vent ot defrost vent when I accerlerate. But I am also hearing a thumping noise in the rear ac that sounds like a vent or baffle that is not working properly. When I turn on the rear ac the noise is louder. This is probably a vacuum problem also. I caanot change the rear air flow, it is stuck in floor mode. Is there a way to stop that noise without doing the whole vacuum problem like disconect the vacuum, get it to rear vent mode only and leave it there till I get the vacuum fixed.
Friday, May 1st, 2009 AT 12:41 PM