[C2] Auto City Classics Power Window kit
Thread Starter
Safety Car
Joined: Jan 2004
Posts: 4,270
Likes: 561
From: Macedonia Ohio
Auto City Classics Power Window kit
Guys, I installed the PW kit about a year ago. I have had nothing but problems since. The windows will work for a while then jam down. It appears that it goes past the last gear tooth and jams. In my opinion the window motor is too fast and that is causing the problem. ACC replaced the first regulator with a new one and it did the same thing.
Since then I have added a 69 Camaro bottom bumper stops as recommended by many. I still have the same problem. I have had both sides jam down at least 4 times. This is getting very old.
Has anyone had problems like this? Does anyone know of a fix?
Input is appreciated.
Since then I have added a 69 Camaro bottom bumper stops as recommended by many. I still have the same problem. I have had both sides jam down at least 4 times. This is getting very old.
Has anyone had problems like this? Does anyone know of a fix?
Input is appreciated.
Thread Starter
Safety Car
Joined: Jan 2004
Posts: 4,270
Likes: 561
From: Macedonia Ohio
Yes, it is a kit made for a C2. I purchased it on line from ACC. The first time it got stuck they told me to send it back as it shouldn't be reused. The new one had the same problem. The passenger side was working well then started doing the same thing after about a year.
Melting Slicks
Joined: Sep 2012
Posts: 2,407
Likes: 809
From: Justin, Tx
Well, I've had the same problem with them jamming down, but don't have a fix. I thought I installed them wrong. Just another example of an aftermarket part wasting people's time. I was planning on ordering from them for my next car, so thanks for mentioning the problem. I thought I installed them wrong.
Last edited by Ken Sungela; Jun 29, 2020 at 09:39 PM.
Thread Starter
Safety Car
Joined: Jan 2004
Posts: 4,270
Likes: 561
From: Macedonia Ohio
Well, I've had the same problem with them jamming down, but don't have a fix. I thought I installed them wrong. Just another example of an aftermarket part wasting people's time. I was planning on ordering from them for my next car, so thanks for mentioning the problem. I thought I installed them wrong.
Ken, you should also call so they at least know it is a common problem.
Last edited by woodsdesign; Jun 29, 2020 at 09:43 PM.
Race Director
Joined: Mar 2002
Posts: 13,637
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From: NorCal
The I added power windows to my 67 ragtop I went with used OEM parts, since they are a known (reliable) quantity. I got them from David Sokolowski in L.A., had them rebuild and they've worked famously for around ten years. This will be an advantage in future years if I or a mechanic needs to troubleshoot them.
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Verdad Gallardo
Safety Car
Joined: Nov 2002
Posts: 4,459
Likes: 1,293
From: minneola fl
Larry, I have fixed that problem, with success, two ways. Both are a pain. Remove the regulator, and build a "weld bump" at the last tooth. You have to make it big enough so that it doesn't jam or bind on a full force down. The other way that I have fixed it, is to install a PWM (pulse width modulator) in each door, to control the speed. I just leave them in the door, held in place with some velcro. Make sure that they are reversible, and about 20 or 30 amps. Auto City is already are aware of the problem, and changed their motors about 3 years ago. (you could also change the motors.)
https://smile.amazon.com/ICQUANZX-Co...%2C190&sr=8-13
https://smile.amazon.com/ICQUANZX-Co...%2C190&sr=8-13
Last edited by mike coletta; Jun 30, 2020 at 06:16 AM.
Safety Car
Joined: Nov 2002
Posts: 4,459
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From: minneola fl
I don't think so. I'm not sure how you would wire it, as it doesn't use an up/down switch to operate, and stops via an amp or load sensing circuit.
Last edited by mike coletta; Jun 30, 2020 at 01:05 PM.
Le Mans Master
Joined: Jan 2007
Posts: 6,003
Likes: 1,509
From: Prescott Arizona
Mike - There's a similar thread on the Tri-Five Forum with the replacement motors way too fast...or as the OP states...'like break the window fast'. So far the only solution we had come up with was to duplicate a setup similar to the heater blower motor resistor that cuts power so that the one-speed motor runs on three different speeds. Someone suggested we try using a ballast resistor to do just that, reduce the juice to the PW motors. As far as I know, no one has actually tried that configuration. If that somewhat simple solution doesn't do the trick, and that PWM is the way to go, would it be installed in the door, then rotate the potentiometer **** to a suitable motor speed and then left alone? And, I see it has a switch but if it was hooked up in line, you would still be able to use the factory PW switches, correct?
Thanks,
Mike T - Prescott AZ
Thanks,
Mike T - Prescott AZ
Safety Car
Joined: Nov 2002
Posts: 4,459
Likes: 1,293
From: minneola fl
Mike - There's a similar thread on the Tri-Five Forum with the replacement motors way too fast...or as the OP states...'like break the window fast'. So far the only solution we had come up with was to duplicate a setup similar to the heater blower motor resistor that cuts power so that the one-speed motor runs on three different speeds. Someone suggested we try using a ballast resistor to do just that, reduce the juice to the PW motors. As far as I know, no one has actually tried that configuration. If that somewhat simple solution doesn't do the trick, and that PWM is the way to go, would it be installed in the door, then rotate the potentiometer **** to a suitable motor speed and then left alone? And, I see it has a switch but if it was hooked up in line, you would still be able to use the factory PW switches, correct?
Thanks,
Mike T - Prescott AZ
Thanks,
Mike T - Prescott AZ
Last edited by mike coletta; Jul 1, 2020 at 05:45 AM.
CF Senior Fox Bat
Joined: Aug 2011
Posts: 3,818
Likes: 619
Glad I found this thread, I thought I was the only one with this problem. When I got my car the power window motors were not only shot but they had been taken out of the car and piled neatly in a box "outside" for a few years. So when I got the box, I chucked the motors, which I should never had done, but I was made aware that motors could be had without issue. I installed the motors and I immediately was transported to medieval times where the guillotine was now being relived in my doors 
I was always afraid that one day the window would pop the top of the coupe door off, or I would find the mechanism some where on the road below. This was my first C2 with power windows, so I thought we were all living with this mobile guillotine so said nothing
So, now I know this, I will look for replacement motors but of course like everyone else here, I really have no interest in replacing one guillotine with another. I would like to keep my original arms so do we have a "for sure" non decapitator available?
I was always afraid that one day the window would pop the top of the coupe door off, or I would find the mechanism some where on the road below. This was my first C2 with power windows, so I thought we were all living with this mobile guillotine so said nothing
So, now I know this, I will look for replacement motors but of course like everyone else here, I really have no interest in replacing one guillotine with another. I would like to keep my original arms so do we have a "for sure" non decapitator available?
Last edited by TC233; Jun 30, 2020 at 05:35 PM.
Thread Starter
Safety Car
Joined: Jan 2004
Posts: 4,270
Likes: 561
From: Macedonia Ohio
I called ACC today and they denied they had a problem. He said they were exactly the same as the originals but maybe a little thinner. ( so not exactly ). He said to feather the switch. I told him that was fine as long as I remember or someone else operates the switch. Then he said maybe originals were the way to go.
What about my $500 dollars? Sorry they are out of warranty.
What about my $500 dollars? Sorry they are out of warranty.
Thread Starter
Safety Car
Joined: Jan 2004
Posts: 4,270
Likes: 561
From: Macedonia Ohio
The I added power windows to my 67 ragtop I went with used OEM parts, since they are a known (reliable) quantity. I got them from David Sokolowski in L.A., had them rebuild and they've worked famously for around ten years. This will be an advantage in future years if I or a mechanic needs to troubleshoot them.
Le Mans Master
Joined: Jan 2007
Posts: 6,003
Likes: 1,509
From: Prescott Arizona
Mike, If you reduce the voltage on a DC motor, it loses all of it's power. I resistor won't work. That's why you need to use a PWM. It does just what it implies, it "pulses" full voltage, keeping full torque. Yes, you would need to remove the PWM switch, and wire it to the window switch. Leave the pot to adjust the speed. Make sure that you wire it correctly, because one "bad" connection will fry these pretty quick. You'll have to run a power wire "into" the door, but the ground, and motor wires are already there. Frankly, today I would just buy the new/slower motors. Back when I used the PWM's I couldn't find a slower motor that was cheap enough to make it work, so I used the PWM's.
Mike T - Prescott AZ
Safety Car
Joined: Nov 2002
Posts: 4,459
Likes: 1,293
From: minneola fl
I called ACC today and they denied they had a problem. He said they were exactly the same as the originals but maybe a little thinner. ( so not exactly ). He said to feather the switch. I told him that was fine as long as I remember or someone else operates the switch. Then he said maybe originals were the way to go.
What about my $500 dollars? Sorry they are out of warranty.
What about my $500 dollars? Sorry they are out of warranty.
CF Senior Fox Bat
Joined: Aug 2011
Posts: 3,818
Likes: 619
Glad I found this thread, I thought I was the only one with this problem. When I got my car the power window motors were not only shot but they had been taken out of the car and piled neatly in a box "outside" for a few years. So when I got the box, I chucked the motors, which I should never had done, but I was made aware that motors could be had without issue. I installed the motors and I immediately was transported to medieval times where the guillotine was now being relived in my doors
I was always afraid that one day the window would pop the top of the coupe door off, or I would find the mechanism some where on the road below. This was my first C2 with power windows, so I thought we were all living with this mobile guillotine so said nothing
So, now I know this, I will look for replacement motors but of course like everyone else here, I really have no interest in replacing one guillotine with another. I would like to keep my original arms so do we have a "for sure" non decapitator available?
I was always afraid that one day the window would pop the top of the coupe door off, or I would find the mechanism some where on the road below. This was my first C2 with power windows, so I thought we were all living with this mobile guillotine so said nothing
So, now I know this, I will look for replacement motors but of course like everyone else here, I really have no interest in replacing one guillotine with another. I would like to keep my original arms so do we have a "for sure" non decapitator available?