Back Window Doesn't Go back up

[94stangfan]

All,

I have a 95 convertible and I put the top down along with all the windows and now the drivers side window won't go back up.

The person I bought it from said the switch was replaced (it looks new as well) in the drivers door, and I just changed out the motor in the back (albiet a used motor).

I tested the motor a couple times before I reassembled the panel and whatnot, and it worked just fine. I tested it once I got it all back together and it worked just fine.

I went for a ride around the block and backed the car in the garage, turned it off. I waited for a bit and realized I should probably put the top back up, went out and the motor doesn't work again.

These are the same symptoms my old motor had. I am doubting that the motor is bad. I am wondering if I have a wire problem somewhere. Is there some way that I can test to make sure that there is power coming back to the motor and then also push power to the motor without the switch?

I really have a feeling that it is the wiring because it will work sometimes and not others. I don't hear anything at the motor end when it is not working.

This is really frustrating.

Thanks,

Keith

 

[BlackVert]

sounds like a wire problem to me too

do you have a multimeter? first thing i'd do is see if there is voltage at the motor when the switch is activated.

as to getting power there without the switch, where there is a will, there is a way. but you would have to rig something up.

how are you at doing the macgyver thing?

 

[BlackVert]

damn ... wouldn't you know it? this morning, mine doesn't go up (driver's side). that is the first time it has happened for mine.

 

[99FiveOh]

Yeah, you have to test that circuit when the window doesn't go up to make sure it is or it isn't the power source. If you get power to it you have another problem.

And just because the motor spins doesn't mean it's good. Over time the worm gear wears out and it will bind inside the motor. Sometimes if you use the switch you can free it, but if it's all the way down I'm not sure it will help.

What I do to prevent this from happening is I never put any of my windows all the way down. Less chance of a bind that way.

 

[94stangfan]

Yeah, you have to test that circuit when the window doesn't go up to make sure it is or it isn't the power source. If you get power to it you have another problem.

And just because the motor spins doesn't mean it's good. Over time the worm gear wears out and it will bind inside the motor. Sometimes if you use the switch you can free it, but if it's all the way down I'm not sure it will help.

What I do to prevent this from happening is I never put any of my windows all the way down. Less chance of a bind that way.

Mark, You may be on to something here...

I pulled the motor back off and the switch made it spin in both directions. I played with it a bit to make sure it wasn't going to stop.

Now that I have put it back together, it seems to work just fine. I don't quite get it, but I will let that be until it fails again.

I now have an extra motor, is this gear you speak of hard to replace? AKA is it hard to rebuild one of these motors?

Thanks,

Keith

 

[99FiveOh]

No, it isn't really worth repairing because the motor itself gets weaker over time as well.

Just try not to put the window all the way down and you should be fine. It will only bind if you do so.

 

[BlackVert]

i took some pics as i was digging into mine

the motor

the plug for the motor

when i touch the battery terminals to the other ends, the window goes up when they are one way ... reverse them, and the window goes down.

so it looks like mine is a problem with the switch.