: 1991 Blower Motor?



mjs182004
04-29-13, 05:28 PM
On Sunday I went for a little drive. Went I got home and shut off the car, the blower motor kept on running. I turned the car back on and hit the off button on the ecc. Still kept running. It seems to be stuck on high. I ended up unplugging the purple wire going to the top of the blower housing under the hood. Anyone have any ideas?

cadillac kevin
04-29-13, 06:56 PM
On Sunday I went for a little drive. Went I got home and shut off the car, the blower motor kept on running. I turned the car back on and hit the off button on the ecc. Still kept running. It seems to be stuck on high. I ended up unplugging the purple wire going to the top of the blower housing under the hood. Anyone have any ideas?

I had to deal with this in a friends roadmaster. The problem is either the blower resistor pack or the ECC head itself.

brougham
04-29-13, 06:56 PM
Mine has the same problem. I think it's the module in the air box beside the blower fan but haven't had a chance to change it yet.

mjs182004
04-29-13, 11:33 PM
Ok, I'm going to try swapping out the ecc head tomorrow since I have a spare. Hopefully that one works. Would the ecc head unit also tell the A/C Clutch to never turn off as well(only when the car is running).

mjs182004
04-30-13, 09:18 PM
Ok, so i changed out the ecc head unit with one that i got from a junk yard last year. The blower still stays on regardless if the car is on or not. But it did resolve the AC compressor always being on. Now it actually turns off when it's suppose to. How do I get to the resister? On a side note, what is the black box just under the ecc head unit?

carnut
05-01-13, 03:43 PM
You need the "power module" under hood by the blower motor. It fails internally on the ground circuit keeping the blower powered.

brougham
05-01-13, 07:34 PM
You need the "power module" under hood by the blower motor. It fails internally on the ground circuit keeping the blower powered.

That's what I was talking about, not the control head in the car.

mjs182004
05-05-13, 09:00 AM
Ok, I don't understand why they are so expensive. I took mine apart to see if it could be repaired, but there is nothing repairable on it. O'reilly's wants $280 for it and rockauto is $145. What other cars have the same part that i can find in the junkyard?

j2rossit
05-05-13, 03:55 PM
This part is so common to fail that they are impossible to find at a reasonable price. No junk yard around here even have them.
Rockauto stopped carrying the one for the 80's broughams and they were twice the price of yours even when they did carry them.

They can be repaired by someone who knows what they're doing. The silicone (or whatever it is) needs to be removed and the components can be replaced.

csbuckn
05-05-13, 07:13 PM
I got one I can sell. $2.5 million plus shipping but $30 shipped for members.

cadillac kevin
05-05-13, 07:18 PM
I didn't know they were common to fail....I rarely see them taken at the junkyard (and I've only sold 1 so far)

j2rossit
05-05-13, 09:34 PM
I went through tons of them on my old Buick.
I think it might be more common for them to fail up here in Canada since the blowers get so much use through the winter for defrost.
When the blower starts to get older, it draws more current and puts more load on the resistor unit.
When the one went in my car. I could only find one in all the wreckers within hundreds of miles. They wanted $80 non-refundable for it. I bought it and it turned out to be shot too. I managed to convince them to give me a store credit and picked up a new windshield. I finally found a NOS one at a wreckers in the states that shipped it up here.
If you have a working one for the 80's, I'm more than happy to pay $30 for you to add that into the box of stuff you're sending, I'd feel a better having a spare.

cadillac kevin
05-05-13, 09:57 PM
I went through tons of them on my old Buick.
I think it might be more common for them to fail up here in Canada since the blowers get so much use through the winter for defrost.
When the blower starts to get older, it draws more current and puts more load on the resistor unit.
When the one went in my car. I could only find one in all the wreckers within hundreds of miles. They wanted $80 non-refundable for it. I bought it and it turned out to be shot too. I managed to convince them to give me a store credit and picked up a new windshield. I finally found a NOS one at a wreckers in the states that shipped it up here.
If you have a working one for the 80's, I'm more than happy to pay $30 for you to add that into the box of stuff you're sending, I'd feel a better having a spare.

I guess I'll go pick one up for you then. Theres a couple caddys in the yard that were really well maintained so they should be good.

mjs182004
05-06-13, 12:50 AM
If the 80's ones would fit my 91, I would buy one from one of you guys. I don't know if I could swing the 2.5 mil though. lol There arn't any broughams in a junkyard near me at the moment.

csbuckn
05-06-13, 01:14 AM
The 2.5 mil is my layitlow price. lol

j2rossit
05-06-13, 07:53 AM
Sorry for the confusion csbuckn, kevin is sending me stuff and I thought he was the one that posted about have a resistor module for $30.

brougham
05-06-13, 08:41 PM
If the 80's ones would fit my 91, I would buy one from one of you guys. I don't know if I could swing the 2.5 mil though. lol There arn't any broughams in a junkyard near me at the moment.

It's supposed to be a 3 year only part that doesn't fit any other vehicles. Id just pay out for a new one. Chances are any used one you find won't last much longer then the one you're replacing.

mjs182004
05-07-13, 12:30 AM
Ok, I found it on Amazon for $129 shipped. Should be here on Wednesday. Hopefully this will fix it!

csbuckn
05-07-13, 12:41 AM
Sorry for the confusion csbuckn, kevin is sending me stuff and I thought he was the one that posted about have a resistor module for $30.

No prob, did you want it?

j2rossit
05-07-13, 07:41 AM
Kevin's going to see if he can get one to toss in with the stuff he's sending. If he can't get one, then I'd be interested in yours.

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Ok, I found it on Amazon for $129 shipped. Should be here on Wednesday. Hopefully this will fix it!

Just to put the bug in your brain:
Since an older blower motor will cause these things to fail early, and because of how pricy these things are, I also replaced the blower motor.

mjs182004
05-09-13, 01:37 AM
Ok, I got the new Blower resistor module. It works like a charm! Now I may get a new blower, but it seems to be working beautifully for now.

mjs182004
01-19-14, 08:09 PM
Well It took 8 months, now my blower is on its way to the trash. This past week it started to have its own mind. I could get it to work by smacking the blower. Now its not working at all. I already placed my order through amazon. They always seem to have what I need for a little bit cheaper than anyone else. I bought the AC Delco one with the scroll fan blade. I figure the original lasted 23 years, that a genuine AC Delco was the way to go.

larryinalabama
01-20-14, 07:18 PM
I had to put a resistor in my 1990 Brougham reciently, I bought it from Rockauto at 129$, autozone wanted 270$. Most of my car issues come from lack of use.

cadillac_al
01-21-14, 08:53 AM
A dragging blower motor is hard on the blower control module. Since the blower motor is much cheaper than the module it is good to replace it when it starts squeaking or making other noises.