2013 Gmc 2500hd Air Only Blows Out On The Floor

Yes the ignition switch 35 00 dollars later we have a c not only in control 1 4 but also in 5 again.

2013 gmc 2500hd air only blows out on the floor. I have a 2004 gmc sierra 1500 with the duel climate control a c. Chevy truck forum silverado sierra gmc truck forums. I discovered today that i only receive air through the defrost vents. I have a 98 and it does this about every other year.

Air only blowing out of defrost and floor. Jump to latest follow. Air won t blow out of the dash. If you leave the fan speed all the way up it will usually work all the time but sometimes you can feel the vents start blowing less and less air until finally it is barely blowing.

Air only blows out the defrost on the dash. Which sounds like an actuator i just don t know which one. Everything worked fine until the autostart run the battery dead and the poor truck. Regardless of what setting i have it on the air only comes out of the dflefroster and a little on the floor.

Current 2004 gmc sierra 2500hd slt lq4. How do i determine what the cause is. I have put it in full auto mode manually changes the modes and nothing changes. On the a c controls nothing happens when i change the mode from defrost to vent and other settings.

My wife has a 2009 acadia and no matter was mode you have the vents in dash vents floor vents both the air blows 75 from the floor vents 25 dash vents. The a c blows cold but sometimes hardly blows any air out the vents and makes a rattling flapping sound on the passenger side by somewhere near where the fan is. And it s stuck on floor and panel vents. Chevy truck forum silverado sierra gmc truck forums.

Jun 28 2016 12 41am. But our sons very smart gmc guru figured out it was the ignition switch. Joined jul 3 2010 105 posts 7 jul 19 2010. My truck has dual climate control digital.

The air will only come out the floor or the defrost and it will only work on low or high nothing in between. Air only blowing out of defrost and floor. Our 04 sierra 2500hd has had on and off problems the last year. Fan only blows defrost won t change to floor or vent.

2013 gmc terrain not blowing any air out of front vents. Jun 28 2016 12 13pm. Unit and heard something kinda burn up and didnt know what it was but when i. The a c and heat work fine but only blows out the defrost vent on the dash.

So i am having trouble with my ac and heater. Feb 28 2019 8 04pm. Tried to change it to the floor or the dash vents no deal. 2009 gmc sierra 2500 hd 43 000 mi visitor.

Heat and ac both work and fan works at all speeds but i. Our most recent two was blowing warm air and then stopped altogether. Jun 15 2013 9 35pm.