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77 electric window problem
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Joined: Jan 2004
Posts: 58
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From: Bayside Brisbane QLD
77 electric window problem
My left side electric window stopped working abruptly as I was winding the window down.
I have used a test lamp and found that the switch seems fine and there is power to the electrical connectors at the window motor.
I am now guessing the motor has developed a problem - looks like the original 30 year old unit.
Would someone please be kind enough to explain how I remove the electric motor from inside the door so that I can replace it?
Thanks
I have used a test lamp and found that the switch seems fine and there is power to the electrical connectors at the window motor.
I am now guessing the motor has developed a problem - looks like the original 30 year old unit.
Would someone please be kind enough to explain how I remove the electric motor from inside the door so that I can replace it?
Thanks
Racer
Joined: Jan 2007
Posts: 385
Likes: 3
From: RTP NC
My left side electric window stopped working abruptly as I was winding the window down.
I have used a test lamp and found that the switch seems fine and there is power to the electrical connectors at the window motor.
I am now guessing the motor has developed a problem - looks like the original 30 year old unit.
Would someone please be kind enough to explain how I remove the electric motor from inside the door so that I can replace it?
Thanks
I have used a test lamp and found that the switch seems fine and there is power to the electrical connectors at the window motor.
I am now guessing the motor has developed a problem - looks like the original 30 year old unit.
Would someone please be kind enough to explain how I remove the electric motor from inside the door so that I can replace it?
Thanks
It could be the wiring in the door conduit causing the problem. I just replaced mine because the window was not working properly. Sometimes it would not go up or down...etc. If it is the motor, there are 3 screws that hold the motor in place and I believe they are 7/16 in size. Just remove those screws and you can weave the motor out!! Either way, you will have to remove the door panel. I have attaced a link that may help you with that.. Good luck, Tab
http://www.corvettemagazine.com/2001...or/doorpg1.asp
Thread Starter
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Joined: Jan 2004
Posts: 58
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From: Bayside Brisbane QLD
Thanks Tab
I've removed the door panel without causing any damage, just not exactly sure where to start on the electric motor. I can see a couple of bolts, some inside the door and some accessible with the panel removed.
Just don't want to start blindly undoing things and find that I've dropped the mechanism inside the door without needing to.
Anyone done an electric window motor replacement recently?
I've removed the door panel without causing any damage, just not exactly sure where to start on the electric motor. I can see a couple of bolts, some inside the door and some accessible with the panel removed.
Just don't want to start blindly undoing things and find that I've dropped the mechanism inside the door without needing to.
Anyone done an electric window motor replacement recently?
Thread Starter
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Joined: Jan 2004
Posts: 58
Likes: 0
From: Bayside Brisbane QLD
Have checked the wires in the door jam and also at the motor, we have power.
Got into the door this afternoon and removed the three bolts holding the motor in place but having trouble getting the motor out of the door.
Is there a trick to doing this? Can't see anything else that can be easily removed to make this job easier.
Would some one who's replaced a window motor in a c3 please lend a hand?
Got into the door this afternoon and removed the three bolts holding the motor in place but having trouble getting the motor out of the door.
Is there a trick to doing this? Can't see anything else that can be easily removed to make this job easier.
Would some one who's replaced a window motor in a c3 please lend a hand?
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Have checked the wires in the door jam and also at the motor, we have power.
Got into the door this afternoon and removed the three bolts holding the motor in place but having trouble getting the motor out of the door.
Is there a trick to doing this? Can't see anything else that can be easily removed to make this job easier.
Would some one who's replaced a window motor in a c3 please lend a hand?
Got into the door this afternoon and removed the three bolts holding the motor in place but having trouble getting the motor out of the door.
Is there a trick to doing this? Can't see anything else that can be easily removed to make this job easier.
Would some one who's replaced a window motor in a c3 please lend a hand?
Last edited by ...Roger...; Nov 8, 2007 at 06:15 PM.
Thread Starter
Advanced
Joined: Jan 2004
Posts: 58
Likes: 0
From: Bayside Brisbane QLD
Thanks guys, I'll give it a go. The clamps might do the trick, was wondering if the weight of the window might have been making it difficult to remove the motor from it's gear.
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Thread Starter
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Joined: Jan 2004
Posts: 58
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From: Bayside Brisbane QLD
What a great photo, many thanks for posting for me. Help put the things that I've only felt into perspective.
I sat on the floor of my garage and peered into the door cavity - finally realising that if I loosened the lower bolt on the window regulator, I could free the motor without damaging anything. This way I didn't put the window mechanism out of alighment or have to worry about the spring shooting out.
Now I have a dead window motor sitting on my work bench and have to decide whether to source a new one from the States or find a local tradesman who will recondition this one.
Many thanks to the guys that were able to reply to my post, much appreciated.
I sat on the floor of my garage and peered into the door cavity - finally realising that if I loosened the lower bolt on the window regulator, I could free the motor without damaging anything. This way I didn't put the window mechanism out of alighment or have to worry about the spring shooting out.
Now I have a dead window motor sitting on my work bench and have to decide whether to source a new one from the States or find a local tradesman who will recondition this one.
Many thanks to the guys that were able to reply to my post, much appreciated.
Melting Slicks
Joined: Jul 2005
Posts: 2,740
Likes: 3
From: Aurora Ontario
GM still sells them. Do you have a GM dealer near you?
You can also try opening it up and cleaning it. Its pretty basic technology. did you try running power to it to make sure its not something else? They don't go often.
You can also try googling the part number on it. I think you will find it was used in more then just the Vette.
If you want some help on the search. Post the part number.
Jim
You can also try opening it up and cleaning it. Its pretty basic technology. did you try running power to it to make sure its not something else? They don't go often.
You can also try googling the part number on it. I think you will find it was used in more then just the Vette.
If you want some help on the search. Post the part number.
Jim
Racer
Joined: Jan 2007
Posts: 385
Likes: 3
From: RTP NC
What a great photo, many thanks for posting for me. Help put the things that I've only felt into perspective.
I sat on the floor of my garage and peered into the door cavity - finally realising that if I loosened the lower bolt on the window regulator, I could free the motor without damaging anything. This way I didn't put the window mechanism out of alighment or have to worry about the spring shooting out.
Now I have a dead window motor sitting on my work bench and have to decide whether to source a new one from the States or find a local tradesman who will recondition this one.
Many thanks to the guys that were able to reply to my post, much appreciated.
I sat on the floor of my garage and peered into the door cavity - finally realising that if I loosened the lower bolt on the window regulator, I could free the motor without damaging anything. This way I didn't put the window mechanism out of alighment or have to worry about the spring shooting out.
Now I have a dead window motor sitting on my work bench and have to decide whether to source a new one from the States or find a local tradesman who will recondition this one.
Many thanks to the guys that were able to reply to my post, much appreciated.
Drifting
Joined: Jan 2004
Posts: 1,991
Likes: 3
From: Piscataway NJ
This motor was used by GM for along time. You may find one in a salvage yard. You just have to check the mounting bosses some differ. If I remember right I took all four out of a 78 Seville. Like the PO said for these motors to go bad is rare. I would clean the connector and the terminals in the harness. I had that problem.
Pro
Joined: Oct 2007
Posts: 654
Likes: 0
From: Crusing the roads of the great USA
The reason to see the other side is that i need to replace the bushing
in my manual crank widow regulator and i'd like to see if i can handle it and what parts i may need in advance... Thank You!
in my manual crank widow regulator and i'd like to see if i can handle it and what parts i may need in advance... Thank You!
Melting Slicks
Joined: Jul 2005
Posts: 2,740
Likes: 3
From: Aurora Ontario
http://www.ecklers.com/product.asp?p...3&dept_id=1661
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[/IMG]Jim
Last edited by jdp6000; Nov 8, 2007 at 09:23 PM.
