I bought some eBay window motors last week. Before I took the regulator out and all that jazz, I just disconnected the old motor and hooked up the new motor to see the speed difference. Guess what, THERES NONE!!! This is with the new motor in my hand, no resistance at all. I did, however, re-wire the car a few years ago so that I only had lights, windows, and thats about it. I havent traced all the wires yet, but as far I know I kept the same gauge wire as the stock harness. Main reason Im thinking its a wire issue is because the psasenger window motor is doing the exact same thing. I did see 2 30A circuit breakers (?) in the fuse box, could this be a possible cause? Or maybe even a relay problem?

I put in a new drivers side motor in about a year ago. It moves just the same as the passenger side, but people always say these motors are slow. What is your definition of slow? Mine doesn't go down as fast as a new car...but it's not real slow either. It's probably normal as most every thinks they are too slow...

I think that is how they were when new. I know a lot of people try to rewire and do all kinds of stuff to make them faster, and usually it doesn't make a difference. I think it's just how they are supposed to be... Anyone else have any input???

with the original motor, it takes about 15 seconds to roll the window completely down. My 95 Monte Carlo goes all the way down and back up in under 10!

I thought maybe when I rewired the car I used smaller gauge wire, hindering the power to the motors. But from the looks of it, I used the original size wires. What would be the best way to test this with a multimeter, voltage test? Or would I need to find the resistance?

All the third gens do it the only way around would be retofitting a different motor i think. My old tbird took like 3-5 seconds maybe to go up!

Jay

I just bought an 86, garage kept Trans Am with only 40,000 miles on it. The windows work great compared to my 87 with over 100k on it. If you hit both switches at once, the windows move in together perfectly. Up or down... They reach the end of travel at the exact same time.

They are also faster than my 87. Not by a ton...but noticeably. Thats a big piece of glass they are trying to push/pull...

J.

too bad no one makes motors as fast as the new cars that fits the f body. Only time i wish i had it was when a random summer shower comes. (i hat getting my interior wet like that)

my window motor has been toast since I bought my car back in 03 and I have yet to fix it.

ha ha that sucks! must have AC, i got rid of mine. (well it's in my garage, the clutch was shot)

have any of yall actually taken your motors out to see how fast the motor actually spins over? I thought the window tracks were just old and needed to be cleaned/lubed. But even the new motor only turns about 1 revolution per second. I dont see how some people's motors work better than others. I dont even know where to start on this damn issue. Wires are all good, good battery, but even new motor is slow! ahh, its pissin me off!!!

Yea AC works like a charm however it will make funny noise from time to time when I first turn it on.

these cars are known for their bad grounds ...just thought i would throw that out again

I`ve managed to get my windows opening and closing a little faster by cleaning and lubricating the window hardware in the door and by spraying silicone lube on the weather strip channel on the sides and bottom of the window. I always get a noticeable improvement for a few months then I re-spray the channel again.

Here's a possibility that could be confusing you. Maybe your old windows motors (that are attached) run slow due to the old, dirty, and/or misaligned window tracks, and your new Ebay motor(s) (w/ just the wires connected, in your hand) run slow cause they're poor quality. I bought a new window motor (foreign product) for a different car from Ebay, and new from the box, it ran slow and barely had any power to lift the window sometimes. Sent for a replacement, which ran fast and had no problems. This could explain their slowness, due to 2 different reasons.

-I replaced both of my window motors in my 91 Firebird recently, w/ new ones from Advance Auto Parts, and the motors turn over fast, both when attached to the window and out. Since it's a hard job, and your old motors may be fine, I'd run to the auto parts store, buy a new motor, (if it's returnable), and plug it in to see the speed.

Easy test is with a multi meter. Just test across the power and ground at the connector while energizing the motor. If you have 12.5 in the battery you should see about 12 volts or so at the motor. If you don't you have high resistance from a poor ground, a switch with high resistance, or a positive wire with high resistance. You can use the meter to see where the voltage gets better, such as the breaker in the fuse panel, switch input, etc?

If the voltage looks right, you have a weak motor, or a motor that runs slow as designed.

Keep in mind the motor is geared like 25:1 or something like that(aka, guess), since it would never have the torque needed to lift the glass, even with the regulator springs help.


...Jim