Power Windows
Thread Starter
Instructor
Joined: Aug 2020
Posts: 182
Likes: 2
Power Windows
I have a 1975 coupe. Today I picked up my car from the paint/collision shop. I had the car painted and it came out beautiful. However, when I brought in the car I also gave them two new power window regulators and motor and asked them to replace the old ones because they were not working properly. However, today when I picked it up they said that they replaced the regulators and the motors but the window would not work properly. They go down, but do not go up. When I questioned it, they claimed that it might have been because of aftermarket parts. I bought the parts from Eckler as I had bought other products without any issues. I feel that they are grasping at straws. Does anyone have any idea what may cause the window issue and any possible solutions ? Is there any type of test I can perform?
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
The shop probably wired the motors incorrectly. There is a two pin plug on each; but the pins are NOT 12vdc and ground. They are both for 12vdc input; one for UP and one for DOWN. Ground is connected to a separate single black wire with connector.
That's my 'guess'.
P.S. Never give a 'mechanical' shop and 'electronic' task.......
That's my 'guess'.
P.S. Never give a 'mechanical' shop and 'electronic' task.......
Pro
Joined: Apr 2012
Posts: 696
Likes: 193
From: USA
ifdhe
I have a 1975 coupe. Today I picked up my car from the paint/collision shop. I had the car painted and it came out beautiful. However, when I brought in the car I also gave them two new power window regulators and motor and asked them to replace the old ones because they were not working properly. However, today when I picked it up they said that they replaced the regulators and the motors but the window would not work properly. They go down, but do not go up. When I questioned it, they claimed that it might have been because of aftermarket parts. I bought the parts from Eckler as I had bought other products without any issues. I feel that they are grasping at straws. Does anyone have any idea what may cause the window issue and any possible solutions ? Is there any type of test I can perform?
1-they didn't wind the regulators or wound (sp?) them incorrectly...although they were probably already attached to the motor, i assume you gave them a whole assembly, not a separate motor and regulator.
2- unless the shop rewired your plugs,(meaning ran there own new wiring from a ground and a 12v source into your plugs, which as stated above and in the Wilcox pic, the plugs are not + and Neg)) they only plug in one way. Meaning if the managed to plug them in backwards they would still work ...but backwards.
3-they would have taken out the scissor lift mechanism, if put back incorrectly it definitely could bind on the way down..or up
4- almost forgot....that brown wire that plugs into the front of the fuse box...it may have come out!
Last edited by CAMS69; Dec 15, 2020 at 03:17 PM. Reason: forgot!
Thread Starter
Instructor
Joined: Aug 2020
Posts: 182
Likes: 2
I gave them a seprate regulator and motor. I installed the one on the drivers side. The mechanism worked perfectly, however I was having difficulty putting the glass back on. That is all they did to the one side, and now its not working.
Pro
Joined: Apr 2012
Posts: 696
Likes: 193
From: USA
brown power wire on front of fuse box. Can be kicked off by yer foot. Check it.
Safety Car
Joined: Sep 2005
Posts: 4,229
Likes: 643
From: Orange County Ca
Be sure to lube the tracks, gears, etc.
It is truly amazing what a little lube can do. Wipe out the old, sticky grease as much as possible and put a rag behind the tracks--against the door skin-- and spray it. I think I used some spray lithium grease. I was expecting to have to rebuild the 40yr old doors, but just a good cleaning and lube made it work 90% better.
It's usually better to disassemble everything if you can, but you can get amazing results with everything in place.
Check the plugs on the switches. The have a tendency to get loose and sometimes don't make good contact.
It is truly amazing what a little lube can do. Wipe out the old, sticky grease as much as possible and put a rag behind the tracks--against the door skin-- and spray it. I think I used some spray lithium grease. I was expecting to have to rebuild the 40yr old doors, but just a good cleaning and lube made it work 90% better.
It's usually better to disassemble everything if you can, but you can get amazing results with everything in place.
Check the plugs on the switches. The have a tendency to get loose and sometimes don't make good contact.
