Rear Heat

[mrbigles]

Well, after a search and several other heating threads, I didn't find an answer, so, here goes..

My front heater/defroster is working fine. Blows good heat and haven't had any issue except for some squeak coming from the front passenger dash when on the low setting.

My rear heat, however, does not blow out any warm air. If the vehicle is good and warm, and is working fine, and I turn on the rear air, all I get is cool/cold air blowing out of the vents behind the driver and passenger seats.

Is there a seperate heating mechanism or does this control run off the same system? Anyone had this issue and fixed it? Random guesses also welcome!

Thanks

 

[chevbro]

Overhead Air Co

Greetings

Are you refering to the overhead vents?

These are just hooked to the Air Conditioning as far as I know. The heat ducts come out on the floor on either side of the Consol.

 

[mrbigles]

Ok.. I was wondering, but, wanted to make sure. So, do the controls in the dash allow you to adjust the temp that comes out of those vents or only the speed and the temp remain consistant?

Thanks for the heads up!

 

[BlackRain]

Ok.. I was wondering, but, wanted to make sure. So, do the controls in the dash allow you to adjust the temp that comes out of those vents or only the speed and the temp remain consistant?

Thanks for the heads up!

I have been messin with that, seems as though only cold air comes out. Does not matter what I do with the heat controls, it is veerryy cold here so the heat is all the way over, and the overhead vents still comes out cold.

 

[chevbro]

GM Truck design

We used the overhead air quite a bit on Route 66 a couple of years ago, seem the only thing you can do is...... change the fan speed.
I don't think GM wanted to spend a bunch of money redesigning the truck parts they put in the Tahoe's dash, as you can see with the lack of heat behind the front seats.
It takes a while for me to heat up the back, for the kids and the leather doesn't help.
The truck is designed with the retired trailer haulin folks in mind, though I have not been in a newer one to see if anything has changed.
I am not complainin though it beats the heck out of my 66 Chevy wagon, with no rear heat and .... hot vinyl seats and "open air" conditioning.:lol: