2003 GMC Yukon "cars air vent stuck defrost" Questions

driver side hot air , pass and rear cold air The driver side is the only vent blowing hot air , the defrost and passenger and rear all blow cold air . baffle doors in ductwork stuck in position..

...air vents is stuck it should be down by the squerrl cage also it could be electronically controlled why does my 2009 mercury grand marquis blow from the defoster and floor vents but not out the air ...

...air conditioner) will blow through all vents - including upper dash defrost vent. Thank you Had the same problem. believe it or not i changed the gas cap and got heat all around. something about ...

...AIR VENT OR FLOOR VENT STAYS IN DEFROST VENT. I REPLACE A BROKEN VACUUM CANASTER DID NOT SOLVE PROBLEM. AND IT ONLY GETS WARM IF IM IN HIGHWAY 55 MPG OR BETTERTHEN TEMP COOLS BACK DOWN TO OUTDOOR AIR ...

vent only all the air cold and hot only blows through the defrost vent no cabin vents why/ Either the door that controls the flap that either sends the air through the defrost or the regular outlet is

...blows through the defrost vents no matter what the controls are set to the air only comes out the defrost vents. the blend air door is stuck look down the heat vents to see if something fell in ...

...nothing changes. The same applies for any selection--air blows out the dash vents only. When you push the selector buttons they do light up but nothing seems to happen Mode door is stuck or broken

...setting is a/c/winshield vent. You can a/c or heat the defrost air. A lot of cars don't allow you a vent setting for defrost anymore. I have one that does & one that doesn't. The latter is

...stuck on defrost. No matter if I switch it to vents or floor it only blows air out of the defrost vents. What to do? Check for vacuum lines under the hood that are loose, off, or cracked. With the ...

...air to the desired vent(s.) When the actuator goes bad, loses vaccuum, or an electric door motor fails, the air will go to a default position that is usually the defrost. Since you are stuck at the ...