No AC/Heat

[lt1fire]

Ok I know this isn't exactly diesel specific but I can't find a suburban forum on the web for our years burbs.

I have no ac and heat in my truck.... flip switches nothing happens.... at all.

Is there a fuse for it? Tried looking but they put it in such a bad place and the previous owner put in a manual glower so there are wires running all over the place down there.

the rear heat/ac switch by the rear window switch doesn't have the harness plugged into the back of if.... i'm guessing it is up in the dash somewhere.

Any Ideas?Fuses, blower motor just fried??

[BigMike8504]

First thing to do is make sure your blower motor is plugged in, its under the hood. If it is, turn the speed on high inside the truck and gently tap the blower motor with a small hammer ( note tap, not slam). Usually when the blower motor goes out, it will start sticking and the tap will un-stick it.

[lt1fire]

Originally Posted by BigMike8504

First thing to do is make sure your blower motor is plugged in, its under the hood. If it is, turn the speed on high inside the truck and gently tap the blower motor with a small hammer ( note tap, not slam). Usually when the blower motor goes out, it will start sticking and the tap will un-stick it.

cool will try that... didn't think about tapping it did think about taking it off and put it back on.

[happypunch]

also, make sure the ground is connected on the outside of the blower. you can also check with a test light or multimeter to see if the blower is getting power. my blower motor was dead and it was about $15-20 for a new one and problem solved. kind of a pain to get the bottom screws out with the fender in, but a 1/4" swivel socket and some patience got it done in the parking lot!

[lt1fire]

After I posted this my blower motor started working by itself. But now has stopped.... I have to drive 3 hours Saturday at 5AM so i've got to get it going again...... where is the blower motor located on this rig, i've seen two different diagrams. I have rear air, is it behind the glove box or in the AC box on the motor side of the firewall?

[countryboy90]

its in the ac box on the motor side of the firewall.

the blower motor is the round piece sticking up in the pic.

[legendman]

Chances are it might be behind this cover if it's never been replaced, only way to get this cover of is to remove the inner fender well otherwise it will have to be cut in order to get at the blower motor. Second pic is with the cover off and blower motor out.

[lt1fire]

The purpose of the shroud is noise prevention right??


I'm guessing that if you turbo the motor then the shroud will not fit back into place over the modified box as well as interfere with the actual turbo setting.

[legendman]

Originally Posted by lt1fire

The purpose of the shroud is noise prevention right??


I'm guessing that if you turbo the motor then the shroud will not fit back into place over the modified box as well as interfere with the actual turbo setting.

I think it also acts as a heat shield too.

Yea if you put a 6.5 turbo setup on it then you will have to modify like the pic countryboy put up

[lt1fire]

well its certainly the motor..... I accidently broke little hole in the shroud right by the motor..... hit it with a 1/2 extension a few times and it slowly sputtered to life.... started it up again after driving for 30 minutes and it was dead.... smacked it some more and it, after a while, came to life again.

So time for a new one..... is there a more powerful model out of a newer chevy that is a pure bolt in??


Also is it possible to easily remove the inner fender without removing the outer or would it just be better to remove the inner and outer in one shot.