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Headlight issues

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Old Jun 26, 2014 | 02:08 PM
  #1  
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Default Headlight issues

I know the plastic gears are known to give out on these lights. My headlights move up and down however, the headlight motor doesn't seem to know when to stop. The lights continue to jitter for a few seconds after completing the operation... both going up and down. Here is a short video clip of what I'm trying to describe.

https://dl.dropboxusercontent.com/u/...625_220432.mp4
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Old Jun 26, 2014 | 02:16 PM
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What year?? If 84-87 it would likely be the plastic gear, newer would be the pellets that are prone to disintegrate..

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Old Jun 26, 2014 | 02:19 PM
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Originally Posted by ercriss
I know the plastic gears are known to give out on these lights. My headlights move up and down however, the headlight motor doesn't seem to know when to stop. The lights continue to jitter for a few seconds after completing the operation... both going up and down. Here is a short video clip of what I'm trying to describe.

https://dl.dropboxusercontent.com/u/...625_220432.mp4
Sounds like the same thing my '94 did before I replaced the nylon bushings/pellets in the light motor. Got it apart and found they had disintegrated. Be smart and do both sides. Lots of good tutorials on this board about how to fix these troublesome light motors. I did mine myself and I'm no mechanic.


Last edited by Sassman; Jun 26, 2014 at 02:28 PM. Reason: info
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Old Jun 26, 2014 | 02:32 PM
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Mine did the same thing until I replaced the plastic gear not a hard job at all.
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Old Jun 26, 2014 | 07:43 PM
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I just did both of mine...I'm no mechanic but the videos and stills detailing the process has me feeling like one...Both work like new now.
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Old Jun 26, 2014 | 09:23 PM
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Assuming your Vette is an 88-96, this should take care of the problem. You will need one for each light.
http://www.fullthrottlecorvette.com/...f3_p_1866.html
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Old Jun 27, 2014 | 03:15 AM
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Default I (think I) have the same problem too

What I don't understand is; Why does my Gauges fuse blow when the h/light motor keeps trying to turn the headlights over?

If I bought n installed new plastic gears, are you all sure that this would fix my problem?

Please help. This is my last major problem I have left.. and it gets dark here at 5-ish pm these days.
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Old Jun 27, 2014 | 06:51 AM
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I do not have the book with me right now but it sounds like you have a short in the lights or something the gauge fsue feeds
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Old Jun 27, 2014 | 09:53 AM
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It may not be a gear problem, I just went through replacing mine and after I was all done with new gear/bushings same problem exist! Just posted about it recently here: http://forums.corvetteforum.com/c4-t...post1587213640

I haven't had a chance to troubleshoot it further, but hope to try the troubleshooting tip one member suggested.

Last edited by bac22; Jun 27, 2014 at 10:00 AM.
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Old Jun 27, 2014 | 09:58 AM
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Originally Posted by hooked073
I do not have the book with me right now but it sounds like you have a short in the lights or something the gauge fsue feeds
Hey thanks again.
Do you think my problem could be a kinked h/light fusible link by the battery? It only started playing up after I done my eng.conversion and mate fooled around with the epicly stupid junction block.
(I should've started my own headlight thread when I first signed up. Now I feel it's too late because there are other recent threads with similar/same problems + I don't want to hijack this guys thread)
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Old Jun 27, 2014 | 10:10 AM
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Originally Posted by bac22
It may not be a gear problem, I just went through replacing mine and after I was all done with new gear/bushings same problem exist! Just posted about it recently here: http://forums.corvetteforum.com/c4-t...post1587213640

I haven't had a chance to troubleshoot it further, but hope to try the troubleshooting tip one member suggested.
- I re-read your thread earlier today and noticed you didn't give an update.
- Why did you think you would/could fix your problem with new gears when your old gears seemed fine?
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