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Joined: Dec 2006
Posts: 51
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Dec 2006
Posts: 51 |
Hello to you all, Well we solved the headlight swith problem but now I have a new problem! I have dual taillights on my FA coupe. The left side works fine but the right will not. I checked the socket with a test light and its getting 6 volts. The crossover wire test 6 volts, But when I install the bulb it does not work. I replaced the bulb with a new one but that didnt work. I removed the whole taillight stantion and made sure it was grounded well-NO. Funny thing with the bulb in and the lights on the right side light doesnt work but the right side bulb SOCKET tests 6 volts! In other words, when I touch the test light to the side of the socket it lights!? Whats up with that? Electrical problems are not my strong suit!
oldndragon 1936 FA Master coupe
"Its better to have it and not need it than need it and not have it."
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
Did you check to make sure the bulb itself has a good ground at the socket?  :) :grin:
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
If you have voltage at the bulb base, the unit is receiving voltage, the bulb is good, so the problem is the lack of a good ground. To test this theory, with bulb in socket, and lights on, run a jumper wire form the bulb base to a good ground on the car. If it works, VIOLA! To repair the problem you need to insure that there is bare metal from the socket back to the car frame.  
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Dec 2006
Posts: 51
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Dec 2006
Posts: 51 |
Thanks for the replys. Yes I have tried all those things and it still will not light. The crossover wire from the left taillight has 6 volts and when I hook it up to the right taillight bulb wire and check it with a test lamp-nothing -no power, gone from the left taillight bulb wire. Than I dissconnect the wires and after a second or two power returns to that left taillight crossover wire. I dont understand that. I have run a jumper lead from chassie ground to the bulb sockets and the taillight housing- still no power. I took the taillight off and bench checked the lights - work fine. I guess it must be poor ground but the test you metioned should confirm that-it has not. Oh well I'll keep trying. oldndragon
"Its better to have it and not need it than need it and not have it."
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Joined: Jul 2002
Posts: 83
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Jul 2002
Posts: 83 |
Just a brief thought here Oldndragon, Seems to me your getting power to the socket contact OK and that you have a good ground when you test from the socket contact to the side of the socket. If your using the clip end of your test light on the (socket side) ground side and the sharp end is sticking into the contact your getting power, I would suggest that you have surface corrosion on the socket contact. Your test light piont will pierce this corrosion but the broad area of the bulb will not. Try a light sanding of the socket contact with a bit of fine emery.
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Joined: Sep 2007
Posts: 64
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Sep 2007
Posts: 64 |
I am thinking you have two possible trouble locations.
1. ck the wire from left to right for a possible short to gnd.
2. the spring inside the socket is broke and in mounted position its shorting out.
Take extreme care the fiber washer is very easy to break.
Eldeeb
_________________
Keep them running
trucks are cool
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Joined: Dec 2006
Posts: 51
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Dec 2006
Posts: 51 |
Thanks eldeeb and all of you guys for all your help! It turned out to be the crossover wire right to left short to ground. Again...Thanks to you all for your ideas and suggestions!
Oldndragon
1936 FA master coupe
"Its better to have it and not need it than need it and not have it."
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Joined: Dec 2006
Posts: 51
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Dec 2006
Posts: 51 |
Thanks eldeeb and all of you guys for all your help! It turned out to be the crossover wire right to left short to ground. Again...Thanks to you all for your ideas and suggestions!
Oldndragon
1936 FA master coupe
"Its better to have it and not need it than need it and not have it."
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Joined: Dec 2006
Posts: 51
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Dec 2006
Posts: 51 |
Thanks eldeeb and all of you guys for all your help! It turned out to be the crossover wire right to left short to ground. Again...Thanks to you all for your ideas and suggestions!
Oldndragon
1936 FA master coupe
"Its better to have it and not need it than need it and not have it."
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