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For some reason I keep blowing tail light fuses. Everything else seems to work fine, but after a short ride the tail lights go out and I found a blown fuse. Any suggestions. Thanks
 

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not sure if this is possible to be the same for a C 4 or not, but i had the same problem. it was my clutch pedal that had kept rubbing a hot tail light wire untill it was bare and kept grounding it. put a new fuse in and have a look under the dash while pretending to drive (using the clutch, braking and giving gas) if you have any sparks, then you know where the short is
 

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not sure if this is possible to be the same for a C 4 or not, but i had the same problem. it was my clutch pedal that had kept rubbing a hot tail light wire untill it was bare and kept grounding it. put a new fuse in and have a look under the dash while pretending to drive (using the clutch, braking and giving gas) if you have any sparks, then you know where the short is
Thanks, it's definitely worth a look. I check all the the bulbs and connections I could get to on the tail light circuit today and didn't find anything out of place yet. I'll keep looking.
 

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You need to determine what all is on the same circuit, it's likely more than just your tail lights. Pull the fuse or while it's blown check to see what else is not working either. Only then can you begin a methodical search for the problem. Although a bare/rubbed wire is one possibility, it's only one of many. Besides a dead short in the wiring or in a failed component, you're also looking for excessive resistance overloading the circuit. This can also be caused by a bad component, a poor connection somewhere, etc. Have you checked all of your tail light sockets for moisture and/or corrosion?
 

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Discussion Starter #6
You need to determine what all is on the same circuit, it's likely more than just your tail lights. Pull the fuse or while it's blown check to see what else is not working either. Only then can you begin a methodical search for the problem. Although a bare/rubbed wire is one possibility, it's only one of many. Besides a dead short in the wiring or in a failed component, you're also looking for excessive resistance overloading the circuit. This can also be caused by a bad component, a poor connection somewhere, etc. Have you checked all of your tail light sockets for moisture and/or corrosion?
I checked all bulbs and wiring I could get to for anything strange. I have now narrowed it down to when the headlights are on and I use the left turn signal it blows the fuse. This helps, but I still have a lot of wiring to try to find, not to mention the blinker switch itself could be part of it.
 

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Tail Lights Don't work

When I purchased my 1986 corvette everything worked fine except had to fix my AVAST problem, but now the tail lights are not working at all. Can someone please help me, and maybe give me advice on how to install the bulbs being everything is sealed back there?
 

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My 427 had an electrical short and sat for a year before I got around to fixing it. I looked for tips on the site, and never found too much written up, so afterwards made this post. It really helps to have a wiring diagram and voltmeter with a continuety tester.

http://www.digitalcorvettes.com/forums/showthread.php?t=72587&highlight=electrical+short

Hope this helps a bit.

One other thought. You might have to remove the bulbs when checking those lines for grounds. At least that is what I did in the C3, as one side of the bulb goes to ground.
 

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When I purchased my 1986 corvette everything worked fine except had to fix my AVAST problem, but now the tail lights are not working at all. Can someone please help me, and maybe give me advice on how to install the bulbs being everything is sealed back there?
you have to take the rear tires off and the inner fenders off. then you can get to the bolts on the back of the lenes.:thumbsup:
 
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