blower motor

[shane93nc]

I know this is my first post but I am tired of being cold in my car!!!!
I have owned three G body regals over the past 20 years and now i have found a forum that I can give help and find help.
Ok now to my problem. My heater/Ac blower motor stopped working. I replaced the switch and the blower itsself with used ones with a warrenty. But still not working. I did a search on here about it and it was mentioned that a relay maybe in involved. Can anyone point me in the right direction on finding that relay on my car? FYI its an 81 Buick with the 231 motor.
Thanks Shane

 

[midwestls]

help will be here soon for ya. I haven't yet had to do anything with mine, but i know some of the newer GM's also use a resister that commonly goes out. I just had to replace one on a 95 Chev truck. Anyone?

 

[shane93nc]

Thanks i sure hope so. I forgot to mention its an 81 with the 231 buick motor.I have a haynes manual for it but it don't say much about the blower motor.

 

[midwestls]

bump. Come on guy's this guy needs heat! :!:

 

[pontiacman469]

Ill Try to give you some ideas,dont know if will help:Under the hood on the back passagers side by the blow motor mine had a resistor of some sort in the heater box towards the motor about 2"x1" (mounts flush in the housing)with 2 bolts either 9/32 or 1/4,try that.2)Check the ground on the blower itselt i believe it bolts to the housing itself that could be bad.3)Try the fuse it may sound dumb,but always overlooked.There isn't much to the system.last i would go back to the switch personally i've seen 1 of 5 work over time,hope this helps!

 

[midwestls]

so if G's have resisters too I'd put my money on that. I had a guy at the local Chev dealership tell me they go out all the time and the pickup I put it in had all the same symptoms as yours, and I too tried the motor and switch. Right through the dealership it only cost about 20 bucks.

 

[Blake442]

Check your ground. I've battled this with 4 or so of my past g-bodies. Also check all the wiring harness connections for corrosion.

 

[pontiacman469]

x1000 on the ground wire:blower motors are painted/not clean for that connection 😢

 

[83cutlasssedan]

I replaced mine last winter. The motor was on the way out and blew the fuse. I replaced the motor and the fuse and haven't had any problems. Check fuses if you havent already.

 

[SBCregal]

dont keep guessing, grab a wiring diagram (your haynes SHOULD have one) and a multimeter and get to testing components