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Old Oct 9, 2019 | 10:47 PM
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Default Stop express window down sooner

Is there a way to stop auto/express window before it hits the bottom?

With the door panel off, I noticed the motor/track are binding and pushing out on the inside of the door. I replaced the motor, which uses bolts/nuts to replace the old rivets. The bolts/nuts are listening and widening the holes in the the plastic/fiberglass door frame when the express feature tries forcing the window down further.

I read threads about disabling the auto down feature all together, which I’ll use as a last resort.

thanks
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Old Oct 10, 2019 | 08:43 AM
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Originally Posted by Pbarby
Is there a way to stop auto/express window before it hits the bottom?
Yes. It's in the owners manual. Just tap "up" as the window is going down.


Originally Posted by Pbarby
With the door panel off, I noticed the motor/track are binding and pushing out on the inside of the door.
All doors bulge a bit when the glass hits the rubber stops in the bottom or the door. This is normal and not a problem.


Originally Posted by Pbarby
I replaced the motor, which uses bolts/nuts to replace the old rivets. The bolts/nuts are listening and widening the holes in the the plastic/fiberglass door frame when the express feature tries forcing the window down further.
It sounds like the bolts might be too big. You'll want to make sure you are also using nylock nuts here as many people have had problems with these things backing out. (There are many reasons why the car came with rivets here.)

It is also highly recommended that you use the shbox method for motor replacement. This will prevent many other types of damage to the door. It will also give you more room for the motor-to-regulator hardware.


You aren't talking about using nuts and bolts to attach the door regulator to the composite door skin, are you? This would be a HUGE problem. That attachment must use specialized rivets from GM. Standard hardware will destroy the composite panel. (structure of the door)
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Old Oct 10, 2019 | 08:05 PM
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Originally Posted by wssix99
You aren't talking about using nuts and bolts to attach the door regulator to the composite door skin, are you? This would be a HUGE problem. That attachment must use specialized rivets from GM. Standard hardware will destroy the composite panel. (structure of the door)
probably. I didn’t rivet anything when I replaced the motor w a dorman motor from amazon. I followed the first set of instructions I found. Seems to work fine except the loosening nuts, which I can replace w lockers while the panel is off. Maybe I’ll use a little jb weld to rebuild the ovaled hole from the loose bolt. Thanks
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Old Oct 11, 2019 | 07:46 AM
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Originally Posted by Pbarby
probably. I didn’t rivet anything when I replaced the motor w a dorman motor from amazon. I followed the first set of instructions I found. Seems to work fine except the loosening nuts, which I can replace w lockers while the panel is off. Maybe I’ll use a little jb weld to rebuild the ovaled hole from the loose bolt. Thanks
You are in a bad place. Here are some things you need to do in order to get to a good position for longevity: BTW - JB Weld won't help you. If a hole is badly rounded, you would need to epoxy a washer to the position where the hold needs to be. The following threads and links discuss that.

1) Get the proper GM rivets in the door to secure the regulator. They are special steel mandrel/aluminum jacket rivets, made specifically for the composite door. Any GM dealer can get them for you. You'll also need a special oversize riviter that does 1/4" rivets. Menards has a great price on a tool for this: https://www.menards.com/main/tools/h...241182&ipos=13

The rivets are critical. If not used, bolts will tear through the door like this and throw off your window geometry so the glass will not seal:


2) Follow the shbox instructions to drill holes in the panel to access the motor bolts: http://shbox.com/page/windowmotor.html

Then, replace the nuts you have on the motor with nylock nuts. If those things vibrate loose, the motor gear will grind and remove the regulator. This is the way you want to replace the motor in the future, also because the process for drilling out the regulator rivets enlarges the holes in the door. (No doubt, as you found the hard way.)


^^ All of this should also resolve the concerns you originally posted about.
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Old Oct 11, 2019 | 09:10 AM
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Originally Posted by wssix99
You are in a bad place. Here are some things you need to do in order to get to a good position for longevity: BTW - JB Weld won't help you. If a hole is badly rounded, you would need to epoxy a washer to the position where the hold needs to be. The following threads and links discuss that.

1) Get the proper GM rivets in the door to secure the regulator. They are special steel mandrel/aluminum jacket rivets, made specifically for the composite door. Any GM dealer can get them for you. You'll also need a special oversize riviter that does 1/4" rivets. Menards has a great price on a tool for this: https://www.menards.com/main/tools/h...241182&ipos=13

The rivets are critical. If not used, bolts will tear through the door like this and throw off your window geometry so the glass will not seal:


2) Follow the shbox instructions to drill holes in the panel to access the motor bolts: http://shbox.com/page/windowmotor.html

Then, replace the nuts you have on the motor with nylock nuts. If those things vibrate loose, the motor gear will grind and remove the regulator. This is the way you want to replace the motor in the future, also because the process for drilling out the regulator rivets enlarges the holes in the door. (No doubt, as you found the hard way.)


^^ All of this should also resolve the concerns you originally posted about.
thank you, wssix99. Longevity is my goal with this car.

I’m going to add it to my winter project list. I also noticed the pass side window has slowed down, so I’ll grab the rivets and riveter and get to work on both doors.

thanks again.
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Old Oct 13, 2019 | 10:58 AM
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Originally Posted by Pbarby
thank you, wssix99. Longevity is my goal with this car.

I’m going to add it to my winter project list. I also noticed the pass side window has slowed down, so I’ll grab the rivets and riveter and get to work on both doors.
The trick is to not touch the rivets on the passenger side at all. The shbox link will show how to replace the motor without touching the regulator (or the regulator rivets) at all. This makes the job much easier and will keep the attachment points on the door eternally solid.


BTW - The Rivet Part Number is 10157547. I have three if anyone needs a random one. (They come in packs of 5, so for a new project - mine won't be helpful.)
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Old Oct 13, 2019 | 11:04 AM
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Originally Posted by wssix99
All doors bulge a bit when the glass hits the rubber stops in the bottom or the door. This is normal and not a problem.
Except imo it leads to the door panels cracking. I have never let my windows hit the bottom and always leave my windows up above the door about 1 inch and I have zero door cracks.
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Old Oct 13, 2019 | 01:19 PM
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Originally Posted by 98CayenneT/A
Except imo it leads to the door panels cracking. I have never let my windows hit the bottom and always leave my windows up above the door about 1 inch and I have zero door cracks.
This is urban F-Body myth. This was debunked years ago by many of our members. Even when the car sits and isn't used, the door panels crack. The bulging also creates forces in the opposite direction of how the door panel cracks form. The door panels just have a flaw in the design, which is alleviated by the mod in the door panel thread.
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Old Oct 13, 2019 | 08:46 PM
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Originally Posted by Pbarby
Is there a way to stop auto/express window before it hits the bottom?

With the door panel off, I noticed the motor/track are binding and pushing out on the inside of the door. I replaced the motor, which uses bolts/nuts to replace the old rivets. The bolts/nuts are listening and widening the holes in the the plastic/fiberglass door frame when the express feature tries forcing the window down further.

I read threads about disabling the auto down feature all together, which I’ll use as a last resort.

thanks
Easiest way to disable the express down feature is to locate the express down module above the gas pedal. ///////////Remove it and simply bend tab C over so when you plug it back in it doesn't touch the connection. Express no longer works.
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Old Oct 14, 2019 | 12:13 AM
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Originally Posted by RockinWs6
Easiest way to disable the express down feature is to locate the express down module above the gas pedal. ///////////Remove it and simply bend tab C over so when you plug it back in it doesn't touch the connection. Express no longer works.
Thanks RockinWs6. I saw that mod a few times and have it on my winter list. my ws6 is at speedinc getting dyno'd w it's new 416...therefore, going to put as many miles as I can this fall before taking the interior apart (windows, headliner, seat repair, stereo).
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Old Oct 14, 2019 | 12:40 AM
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Originally Posted by wssix99
The trick is to not touch the rivets on the passenger side at all. The shbox link will show how to replace the motor without touching the regulator (or the regulator rivets) at all. This makes the job much easier and will keep the attachment points on the door eternally solid.


BTW - The Rivet Part Number is 10157547. I have three if anyone needs a random one. (They come in packs of 5, so for a new project - mine won't be helpful.)
the shbox pics helped me realize a few things; the bolts nuts I have in the door are for the regulator, which I drilled out the rivets. The motor also had its' rivets drilled out, (replace w special rivets, nylon lockers or loctite in future). the SHBOX instr show how to remove only the motor while keeping the regulator in place. I do remember drilling holes in the door to expose rivets that needed to be drilled out, so, I want to say I used a method similar to the shbox method, however, had additional instructions to drill out the traditional rivets from the door

I think when I do the pass side i'll have a better understanding of the internals and go back to the drivers side to see how I re-secure the regulator without bolts/screws. I did, however, get my ds window to seal perfectly around the weatherstripping and being careful about not rolling the window down all the way...but suspect this may not last long

Thanks again.
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Old Oct 14, 2019 | 07:54 AM
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Originally Posted by Pbarby
I think when I do the pass side i'll have a better understanding of the internals and go back to the drivers side to see how I re-secure the regulator without bolts/screws.
Well, you don't need to touch the regulator, at all, with the shbox method. Your only worry is that you need to keep the glass from moving around while you do the swap. You can use wedges, as is shown on the web site or a helper. (A helper makes it go even faster.)


Originally Posted by Pbarby
I did, however, get my ds window to seal perfectly around the weatherstripping and being careful about not rolling the window down all the way...but suspect this may not last long
There is a very specific order that the door needs to be adjusted to seal properly. Even if it looks/feels good now, you could develop problems if it wasn't done properly. In particular, the stabilizers need to be done properly. (A lot of times, people have them touching the glass for the full travel, which is not correct...)

The GM Service Manual left out a procedure to do this, but shbox (again) pioneered figuring this out when the third gen came out: http://shbox.com/1/adj_window.html

^ You'll want to back track and make sure that you followed this procedure in this order to make sure things don't get bent out of shape in the door.
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