1997 GMC Safari "defrost working" Questions

air out defrost only air only comes out the defrost vents no matter what setting is on . Fan works fine. I changed the controller panel for settings The vacuum line is not connected or broken. You ...

...its working but not if cracked The vacuum line may be leaking.  Vacuum moves the vent baffles and the window defrost is the default location.  Tract the vacuum lines around the

...seat adjustment stopped working. Air only blows out of vents. Not defrost or floor? Door locks only work with fob. Any ideas? Fuses are ok. 1997 GMC Safari. Have your body control module

defrost is the only mode that works crack or leak in vaccum line that runs the heater controls. the line runs from under the hood and ends at the control switch. check all lines for lraks or cracks

...on fan and go thru all selections,vent,floor,defrost,if not blowing thru them right then blend door is not working,here's a replacement. SAVE 20 GET 10 GIFT CARD ON ONLINE SHIP TO HOME ORDERS OVER ...

...signals, high headlight beam work? Also, does the AC function through the dash vents and not the defrost vents? My cruise control quit and I found it was the vacuum lines running to the

vacuum leak the blower moter only works on defrost cant change to floor or vents I don't know how to check the vacuum lines? you are looking to see if vacuum lines on the ends. are easy to pull off if

2003 gmc safari air will only come out of the defrost vents. fan works fine. No matter what air flow selection I choose, the air only comes out of the defrost vents. The climate control unit might ...

Blower does not work. No heat, no defrost, ... Check astrosafari.com forums, then post your fix on http://car-repair.wikia.com/wiki/GMC_Safari or on this site so anyone with the same problem knows how

1999 gmc safari blower motor works perfect but no air comes out of the ac vents only defrost vent works you have a sucked shut or broken vacuum line under the hood somewhere.  mine was burnt and ...