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Old 06-24-2013, 07:37 AM
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LED Tail light bulbs

My 1952 street rod truck tail lights, blinker lights and stop lights are very weak. Lights have two small 1156 one filament bulbs in the tail lights. They work like they should. When I changed them over to 1157 LED bulbs with 2 fllaments. I can't get them to work proper. I removed the old 2 bulb housing and replaced it with the 1157 socket. One wire operates the blinker light( that works) the other 2 wires hook to the other wire that operates the other bulb element( That doesn't work) Any suggestions?? Thanks.

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Old 06-24-2013, 07:46 AM
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LED flasher.

Led lights require a different flasher. If you have one start checking Grounds and connections. Make sure you have the wires connected to the right terminals. sometimes you can have them so one light grounds THRU the other filiment instead of to the dedicated ground
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Old 06-24-2013, 10:36 AM
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I tried putting LED bulbs in my car without changing out the mechanical flasher. The parking lights and the turn signals went crazy. I wound up swapping out the flasher and installing an electronic flasher. There are some electronic flashers that do not require a separate ground. I had no luck with them and ended up installing a grounded flasher from SOCAL. Everything works perfect now.
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Old 07-02-2013, 05:08 AM
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LED bulbs on 52 Chev

I put LED taillights on my car and the only thing that solved my problem with flashing was in line resistors. You can get them from ebay four for like 15.00. Use one at each light and my problem was solved.
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Old 07-02-2013, 09:00 AM
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I tried two different brands of LED lights and was very disappointed in their poor performance. They weren't as bright than my 80 year old (or older I imagine) 1157's and 1156's! After buying the second set that were much more money (about $25 each as I remember) they didn't make any difference! I noticed at work with the broken tail lamps on late model cars they all had a really great reflector system, THAT was the difference on late model cars! So I diced up a reflector and tried it out, oh yeah that made a difference! Click on the link for a thread on how to do this. "Basics of Basics" Taillamp reflector retrofitting


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