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Old 06-24-2003, 09:12 PM
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Question 1990 camaro i need help

i have a 1990 camaro RS and im having alot of trouble with my lights on the cluster gages and my brake lights. whats happening is when i have my lights on you cant see my brake lights but when i turn my lights off they come on fine with no problem. we replaced all the bulbs nothing happened. with my gages now as soon as i turn my lights on the fuse immediatly blows. so if someone can tell me what they think if maybe i have a wire grounding out somewhere or if my light switch is bad it would be really appreciated.

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Old 06-24-2003, 11:28 PM
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Vet, I had the nearly the identical problem when I first got my 82 Z28. What happened was I installed a new stereo and there was a ground wire already back there that i used. As soon as I turned my headlights on I would blow the fuse for my tail lights. I did the same thing as you, pulled all the bulbs and replaced them. And nearly pulled up the entire carpeting tracing the wires back. Well come to find out it was that ground wire that I tied my stereo into. Might check that. If it is the problem then just simply run the ground from the stero to one of the bolts on the shifter assembly (under the console) and ground it directly to the body and tape that other "mystery" ground wire off.
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Old 06-25-2003, 01:35 AM
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Hey silver, that "mystery ground wire" is your parking lights. And I'll bet it was either brown or gray in colour? Take your test light to it(don't hook that wire up to anything but the test light). When your lights are off, your test light should be off, when you turn your parking lights on, your test light should also come on. If the wire is gray in colour, that would be your light dimmer wire, keep the test light on it, and with your parking lights on move the dimmer switch back in forth, the test light should gradually get brighter or dimmer. That's why your fuse kept blowing, you were shorting the vehicles lights to ground through the stereo (yes your stereo is always grouded as long as your antenna is plugged in to the back of it).
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Old 06-25-2003, 01:55 AM
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vet,

you might have a short in the *** end of the car. If the tailight housing has been removed, you could have a pinched parking light wire. It's brown in colour and there will be afew of them(one for every parklight in the back). The same might hold true for the brake light wires (the pinch in the wires). I don't recall if the brake lights on that car double up as the turn signal also, if it doesn't than the wire should be white in colour, if it does than it will be a different colour. But it's easy to tell which wire is for the brake light anyway. The socket for the brake light will have a three wire pigtail, one wire will be black (the ground for the bulb), one wire will be brown (the parklight filament of the bulb) and the other wire will either be white or maybe not (the brake light filament of the bulb). If the short isn't caused by the housing you'll have to trace the wires back until you come up to wherever the short is.

Good luck, cause that wire harness is a pain in the *** to get too once you hit the inside of the car (back seat has to come out, as well as most of the interior trim on the driver side of the vehicle) . Keep us posted.


Marc
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