Heater not working

[skyl3rm]

Hey guys... new guy here ..
Just bought an 01 Tahoe Z71.

I was driving to work this mornin and it was kinda chilly so I was gona turn the heat on... no heat would come out.. Just blows air..

Not much of a car guy and prolly the farthest from a mechanic you can get.. Would it be the heater core or something else that might be causing this?
Just figured id get some opinions and try to look at it myself rather than having to take it to a mechanic right off the bat.

Thanks

 

[bahollis]

I had the Blend Actuator go out on my old pickup.

it looks like this
http://www.rockauto.com/catalog/moreinfo.php?pk=971139

It's up under the glove compartment on the passenger side. It may be dead, or unplugged. It makes a click-click-click noise when it's going out. If you just bought it, the previous owner may have unplugged it rather than replace it.

or... read this article I found.
http://repairpal.com/i-have-no-heat-what-could-be-wrong

Good luck

BH

 

[DenaliAK]

Unfortunately, it could be several things. Thermostat. Heater core. Who knows? It's one of those things you have to narrow down. Check the fuses first. It's amazing how often that can save $100 in labor for shop time....lol.

 

[LiftedTahoe847]

Im having the same issue....what could it be?