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Headlight grinding

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Old Oct 16, 2012 | 09:11 AM
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Default Headlight grinding

Headlights both go up and down fine. The problem is that when I put them down the right one makes a grinding/buzzing sound when it gets all the way down and won't stop buzzing. It appears it is still trying to go down.

Any idea?
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Old Oct 16, 2012 | 09:43 AM
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Mine did the same thing but quit grinding after a few seconds. Replaced the gears and all is good again. I installed the brass gears when I didn't mine.
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Old Oct 16, 2012 | 10:00 AM
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I know it's considered rude to suggest using search, but it you'll look at the top of the C5 Tech section, under the thread "ultimate DIY" you'll find a pictorial and instructions on fixing this. Also found in many other posts as well. If you can't locate it there, go to Google and type in "forum headlight grinding" and follow the links to the forum here.
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Old Oct 16, 2012 | 10:46 AM
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I'd bet the gears are going bad too. A set of the brass gears seems to work very well to eliminate problems in the headlight motors.
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Old Oct 16, 2012 | 10:58 AM
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I did a search but was confused because mine works fine up and down just wont quit going down. I was hoping there was a stop that I needed to fix.

The grinding sound only happens when it closes all the way.

Last edited by ChiefC; Oct 16, 2012 at 12:09 PM. Reason: research
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Old Oct 16, 2012 | 02:50 PM
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Originally Posted by ChiefC
I did a search but was confused because mine works fine up and down just wont quit going down. I was hoping there was a stop that I needed to fix.

The grinding sound only happens when it closes all the way.

That's because the plastic gear is stripped. Mine did the same. Replaced it with the brass gears.
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Old Oct 16, 2012 | 07:09 PM
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Like said above the gears in the headlite motor needs to be replaced - this link will take you to Patches excellent post on how to correct this problem http://forums.corvetteforum.com/c5-g...orialized.html

hth
Bob
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Old Oct 16, 2012 | 10:01 PM
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Gears for sure. I just had the identical problem in Oct. Easy and cheap fix. Wished I had done both. The right side sits more solid now and at the right height. Left side is next.

Allen
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Old Oct 17, 2012 | 08:42 AM
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Thanks. I'll change the gear this weekend and it will be fixed!
My thought when I did a search (yes I searched before I posted) was that when the gear went bad the light either stayed up or wouldn't go up.

I appreciate all the recommendations, even Richards (65ggvert).
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