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My power windows on both sides seem very slow to go down and even slower up. What is the cause of this? Is there something I can lubricate or is it the actual motor itself?
You need to tell us what year your Vette is. If it's an 84,85 or early 86 it's just the way they are. You can upgrade to the late 86-96 style which are superior in speed and strength. There is a thread in the "other" area at the top of this page. Click on "other" and you will get a drop down menu, go to "tech tips" and you will find a very detailed article on how to make the change over. I'm going to do my 85 this winter.
From the above link it looks as though the '87 has the same setup as the '88. This consists of a motor which drives the window through a simple gear setup attached to a sissor which is bolted to the bottom of the window.
If you remove the inner door panel you will see the sissor. If you cannot access it to apply lube you may need to remove or move the Al panel in the lower rear of the door.
If lube doesn't cure the lazy windows and there is no indication of binding at the sissor pivot, it's likely that the motors have deteriorated over time. The thin insulating coating on the windings can deteriorate over time, causing the motor to lose power.
From: levittown pa. usa Even a bad day with my `Vette, is better than a good day at work
St. Jude Donor '10
Originally Posted by 65Z01
From the above link it looks as though the '87 has the same setup as the '88. This consists of a motor which drives the window through a simple gear setup attached to a sissor which is bolted to the bottom of the window.
If you remove the inner door panel you will see the sissor. If you cannot access it to apply lube you may need to remove or move the Al panel in the lower rear of the door.
If lube doesn't cure the lazy windows and there is no indication of binding at the sissor pivot, it's likely that the motors have deteriorated over time. The thin insulating coating on the windings can deteriorate over time, causing the motor to lose power.