HVAC/AC issue

[Morales1995]

Hey guys, so I have a 2010 that started doing some weird stuff and just wanted an idea as to where I should start or if anyone has came across this issue.

so recently my 2nd row vents stopped blowing air, my cargo vents are still good I think I hear air noises back there. Then up until a few days ago the air was warm and would get cold on acceleration, now today this morning there is no air from the front vents at all. The A/C that passively blows from vents is cold but there is very little of that and I tried adjusting all knobs and still no air.
Important to note the day prior to this I parked my hoe and heard a weird clicking sound from the passenger side under the glove compartment box. Sorry I know it’s a lot but I just wanted to make sure I got all the details in. I appreciate any and all the help. Thank you!

 

[Tonyrodz]

Sounds like it could possibly be the blower motor or blower motor relay/resistor.

 

[Morales1995]

Is there an easy way to find out which of the 2 it is or is it just cheaper and easier to replace both at once? I think the blower motor isn’t too bad to replace.

 

[Tonyrodz]

Here's a video.

You might want to check this one out too.

 

[Morales1995]

Here's a video.

You might want to check this one out too.

You da MVP

 

[swathdiver]

Is there an easy way to find out which of the 2 it is or is it just cheaper and easier to replace both at once? I think the blower motor isn’t too bad to replace.

Do em both, if you do one now, the other will need doing soon after.

 

[Fubar0715]

Truer words could not have been spoken....Seems to be the way with anything that has a "pair" on these Yutes!!! Do them both cuz that law from Murphy is gonna have you back on/in/under and replacing the Siamese twin part.

 

[Morales1995]

Lmao, agreed then today I shall attempt to do this while at work

 

[Morales1995]

New developing event, what is the exact part number? I called Autozone and they were bringing up like 4 types and now they have me second guessing myself…

 

[Tonyrodz]

New developing event, what is the exact part number? I called Autozone and they were bringing up like 4 types and now they have me second guessing myself…

What's the differences? Did you give them the oem part # of your old one?

 

[4183jose]

My 2007 yukon denali started acting up with the rear shutting off and the front max ac going off too, I was ready to tear into everything and found out about a calibration procedure. I did the calibration and that was all I had to do. I recommend doing this first before replacing anything, as it costs nothing.

 

[4183jose]

Here's the link

The tahoes or yukons have three small fuses you must pull. just look for hvac front and rear aux.