2013 Gmc 2500hd Air Only Blows Out On The Floor

I have a 98 and it does this about every other year.

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. Jump to latest follow. Air only blowing out of defrost and floor. Air won t blow out of the dash.

On the a c controls nothing happens when i change the mode from defrost to vent and other settings. Fan only blows defrost won t change to floor or vent. Unit and heard something kinda burn up and didnt know what it was but when i. I have a 2004 gmc sierra 1500 with the duel climate control a c.

Air only blows out the defrost on the dash. Tried to change it to the floor or the dash vents no deal. Gmc sierra 2500 hd heating and ac temperature and air delivery mode door actuators may fail 169 reports. Jun 28 2016 12 13pm.

But our sons very smart gmc guru figured out it was the ignition switch. Our most recent two was blowing warm air and then stopped altogether. I have put it in full auto mode manually changes the modes and nothing changes. Which sounds like an actuator i just don t know which one.

Jun 28 2016 12 41am. Will not go to floor only defrost only or panel vent only. Jun 15 2013 9 35pm. The a c and heat work fine but only blows out the defrost vent on the dash.

And it s stuck on floor and panel vents. Chevy truck forum silverado sierra gmc truck forums. 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. Joined jul 3 2010 105 posts 7 jul 19 2010.

Heat and ac both work and fan works at all speeds but i. Everything worked fine until the autostart run the battery dead and the poor truck. Feb 28 2019 8 04pm. Current 2004 gmc sierra 2500hd slt lq4.

The air will only come out the floor or the defrost and it will only work on low or high nothing in between. So i am having trouble with my ac and heater. Chevy truck forum silverado sierra gmc truck forums. 2009 gmc sierra 2500 hd 43 000 mi visitor.

Our 04 sierra 2500hd has had on and off problems the last year. 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. I discovered today that i only receive air through the defrost vents. 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.

I can adjust the ac heat no problem it s just not coming out of the front vents or the floor it only comes out of thr defrost vents. 2013 gmc terrain not blowing any air out of front vents. Air only blowing out of defrost and floor.