Front HVAC not blowing air in any position. 2005 chevy Tahoe.

[sumbum]

So I hop in my Hoe this chilly morning turn on the heat to full blast and get a face full of nothing. Not warm air or cold air, but the rear heat works so I still got that going for me. What I'm wondering is if in these models it's usually the blower or maybe some other electrical issue? Any insight would be greatly appreciated.

 

[Big Mama]

Do you have access to a Tech2 or another bidirectional scanner? It’ll tell you what’s up so you’re not changing parts. Did you check the fuse for the blower and HVAC?

 

[Doubeleive]

most common issue is the blower motor resistor, it's under the kick panel on the passenger side below the glove box, lots of video's on youtube.
usually you can see the problem with a visual inspection of the resistor they get hot and melt, you can verify by applying 12v directly to the blower motor while under there.

 

[OR VietVet]

If you have manual controls the module/resistor will look like this: https://www.rockauto.com/en/moreinfo.php?pk=3485871&cc=1431156&jsn=2259


If you have auto controls it will look like this: https://www.rockauto.com/en/moreinfo.php?pk=3978654&cc=1431156&jsn=2264

And yes, like Wes said, apply 12 volts directly to the blower to make sure that works at least.

 

[sumbum]

Sorry for the late response, appreciate your guys input. A day after I posted this the heat worked again, now out again. Got some time off thanks to the ol rona virus, so I'll dig around and see what I can find.

 

[Danzigman]

What did you find out? I replaced my resistor 4 -5 months ago because the blower wouldn’t turn off. Now my blower won’t blow...