Fallingapart
Member
My 05 Expedition has long had an annoying problem with the a/c. Upon start up, the a/c works fine and the fan blows on high. The unit is always VERY cold but on long trips, the a/c fan gradually stops blowing. If I put my fingers into the vent, the vent and ductwork feel very cold but there will be little to no air moving. If I turn the a/c off for 3-5 minutes or switch it to heater for a minute or so, then the fan will begin blowing at full speed again. On long trips, I have learned to run the a/c for about 5-10 minutes and then turn it off for a minute or so and then repeat. The air coming out is always very cold and the turning it on/off method will work to keep the car very comfortable - but it can be annoying to have to keep switching it on and off. And if I forget or if anyone else drives my car and they don't know about the a/c trick, then the car ends up hot. This has been going on for about 8-9 years. I have always assumed it is a vacuum hose collapsing and closing a door somewhere in the unit. I would appreciate your wisdom. Thank you!