Tail light question - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

 
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post #1 of 4 (permalink) Old Nov 27th, 13, 12:50 PM Thread Starter
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rick
 
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Tail light question

Didnt want to take away from the other tail ight thread so here's my issue. I have power to tail lights new bulbs but no lights, by the way this is a 65 elcamino. When lights are wired up they don't come on but, the whole tail light assembly is powered meaning if I put a test light to the light assembly it has power along with the body of the car. The wireing is new the light plugs are original just brass against brass. If I insulate these then I wont complete the ground as the assembly is the ground. please help
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post #2 of 4 (permalink) Old Nov 27th, 13, 9:42 PM
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Joe
 
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Re: Tail light question

Quote:
Originally Posted by rj67bu View Post
Didnt want to take away from the other tail ight thread so here's my issue. I have power to tail lights new bulbs but no lights, by the way this is a 65 elcamino. When lights are wired up they don't come on but, the whole tail light assembly is powered meaning if I put a test light to the light assembly it has power along with the body of the car. The wireing is new the light plugs are original just brass against brass. If I insulate these then I wont complete the ground as the assembly is the ground. please help
A bad connection will cause this as one possibility. The test light only draws a tiny amount of current compared to tail light bulb.

But, a few other items. How are you using your test light? You should be sticking it's probe against the proper "button" at the bottom the socket and the wire of the test light should be connected to the ground of the socket (the brass or copper surround).

I don't understand your "insulating the brass against brass". Why would you want to insulate the ground? Try this, install a bulb in the socket, take a piece of scrap wire. Jam one end of the bare wire between the metal base of the bulb and the wall of the socket that holds it in place. Take the other end touch a known good clean, metal ground. If you have to grab a long wire and reach all the way around to the battery's negative terminal, so be it. Does the bulb light up now?

-If you don't stand for something, you'll fall for anything.
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post #3 of 4 (permalink) Old Nov 27th, 13, 11:43 PM Thread Starter
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rick
 
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Re: Tail light question

the bulb inserts into the light socket which is part of the tail light housing this is what i ment by brass on brass. also im assuming that bolting the tail light to the car is creating a ground under bormal curcumstances. Im going to try the wire against the bulb and housing and see what happens. If it does make the bulb light up whats the issue? thanks for the help so far
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post #4 of 4 (permalink) Old Nov 27th, 13, 11:49 PM
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Vince
 
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Re: Tail light question

Quote:
Originally Posted by rj67bu View Post
the bulb inserts into the light socket which is part of the tail light housing this is what i ment by brass on brass. also im assuming that bolting the tail light to the car is creating a ground under bormal curcumstances. Im going to try the wire against the bulb and housing and see what happens. If it does make the bulb light up whats the issue? thanks for the help so far
poor ground to housing

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