Why do panel vents do not blow out air when you hit the AC button or panel vent button it blows out the windshield defrost vents 1989 Topaz?
most vehicles use a vacuum diaphragm to move the mode door inside the dash from the floor to the vents to the windshield. Either the vacuum diaphragm is leaking or the vacuum hose has become disconnected. In my 85 topaz the door pannel vents are used to defrost the side windows.
Why does your air only blows out the front vents and not the floor are defrost on your 2003 dodge ram?
1998 Durango Vent controls stuck in defrost mode will not blow through dash any suggestions Ac works but only blows to front windshield and floor.?
Why would the ac on a 2000 Malibu always blow on your feet no matter how you set it except for defrost then it blows on the windshield?
Hi, There are a couple of possibilities here. If you are not getting any air flow at all near the front windshield, then you probably have something blocking the vents or the doors that control the air flow are not working. If you have air flow, but it is taking a "long time" for the defroster to do its job, then the AC compressor is probably not working. The compressor is used in defrost mode…