Power window issues

[DnStClr]

That same style motor, 12497971, is $5 cheaper at Rock Auto than Amazon.

[SUX2BU99]

Most aftermarket places ONLY sell the 82-91 style regulators and motors as a set.  If yours is a 77-81 regulator and your trying to put a 82-91 on it, they won't work, and vice versa...

That is why I asked if you could post a picture of what you had.  You need the same style motor that came off your regulator...

I'm choked if that's the case; I don't know why I have yet to see anything about power window differences. I hate being the guinea pig on crap like this.

Here's the pic showing the new motor, old motor and my regulator.

To my untrained eye, it looks like my regulator and the one in this pic look the same. They aren't?

[SUX2BU99]

That same style motor, 12497971, is $5 cheaper at Rock Auto than Amazon.

Shipping is $12.50 on Rockauto and it's free at Amazon.

[Captkaos]

The dark one I assume is your old one, that is the 77-81 style, the new on is the 82-91 style.  Old style is square thick and boxy.
Unless I am getting to old I am pretty sure they don't cross mount.  I think the mounting "Flange" is stamped differently.
Your best bet is get a 77-81 style motor.  They can be rebuilt also....


Change your lookup to 1977:


http://www.amazon.com/Cardone-42-15-Remanufactured-Domestic-Window/dp/B000C46MLU/ref=au_pf_ss_3?ie=UTF8&Make=Chevrolet%7C47&Model=C10%7C422&Year=1977%7C1977&carId=001&n=15684181&s=automotive

[SUX2BU99]

Thanks. I've found that I can get a rebuilt one for about $90-ish, plus a core charge. Pretty darn stiff compared to the $28 of a later one, brand new. Know of any rebuild kits I can do myself?

I would bet it has something to do with the flange where the 3 bolts are. My old motor style has has about 1/2" thick 'stand-offs' at each of those 3 bolts to clear the quadrant I think and I imagine the newer style motor does not and mount flatter against the regulator.

Oddly enough, one of the local boneyards has a 76 Buick Lesabre with power windows in it. That yard pretty much has mostly 90's cars so that was rare to see. It would likely have one of my style motors eh? Good to know before I go tearing the door apart.

Are the regulators the same for each side or are they side-dependent? I believe I can get a passenger side one from a 90 Suburban.

[SUX2BU99]

I just bought a working used one from a 75 Cadillac off Ebay for $42 shipped. Here's to hoping it fits!

[Captkaos]

It should be the same.  Did you get it?

[SUX2BU99]

This thread is way old I know but yes I did get the motor and only TODAY have I actually had time to get around to try and put it in. I first wanted to verify the motor works so I connected it to the switch and it didn't work. I took my window switch out and I think my switch has gone bad, as well as the old motor. Yay for me. Anyway, I took the 'new' motor and connected it directly to a battery and was met with sparks! Sounds like it was dead shorting and that only sounds to me like a dead motor. Grrrrrrr. I tried turning the gear on the regulator using a pair of pliers but it wouldn't budge. Anything I should know to verify this motor works? Guy who sold it has 100% postiive feedback and said it was working so I'm hoping I can find a way to make it work.

[Captkaos]

You should be able to just apply 12 volts to it and it go up and swap to the opposite direction and it go down.

[SUX2BU99]

That's what I figured so the sparking is indicating a stuck or dead motor and that's not cool Have you ever taken one of these apart? Anything I should know about before doing so, like if something is spring-loaded against the case and when I take it apart it all files apart making reassembly impossible (how can you tell that has happened before to me!)?

[Captkaos]

I have seen one taken apart, but haven't done it.  Several cars shared this motor though.. 
If you take it apart, have it over a clean area to be safe.

[SUX2BU99]

I wrote the seller I bought it from and he told me that both wires are positive and the ground is the motor case. Touching each wire to + and - is like putting positive power to both sides of the motor and sparking and fried motors can result. I'm hoping that's not the case and once I wire it to a window switch I know is working good that it will work fine.

[SUX2BU99]

The motor I bought works. The seller gave me some great info. Once I grounded the case to the negative battery post, I tried both wire leads on the motor and it worked great both directions. I also tested my switch once I grounded my neg lead on the multimeter to a clean metal spot on the door and found the switch has power on the right terminals when  I press the button up and down. Now to just get everything reassembled.