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Tool Talk Discussion Forum

Wacky turn signal problem

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dr sportster

02-01-2008 13:33:58




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My left turn signal has two2057 bulbs stop/tail; instead of both flashing together one flashes then the other at fast speed.when you hit the brakes one brakelight lights and the other loses both stopand tail filaments.Tried all new lamps but not a flasher [because the two lamp right signal is fine]




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guido

02-04-2008 15:36:30




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
Hello Sportster.
You have a bad ground to the lights that are going off. Ground them from a good ground and I'm sure they will work.
The bulb should be an 1157 in there.
Guido.



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redtom

02-02-2008 05:54:56




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
I don't know how old a vehicle you're working on but on the newer ones the turn signal switch is now a "multi-function swich". My 06 Dodge truck would occassionaly blink left on right setting, etc. The switch was bad. It has only four wires but controls turn high/low, wash wipe, etc about 8 functions and does it by vaying the voltage in the same 4 wires. If the voltage is not exact then weird things happen.

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dr sportster

02-02-2008 05:38:15




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
Thanks gentlemen:The bad ground and seeking a ground through the other filament makes sense.I will also swap lamps from the working side as a lamp proper value test.Im going to work on it now.Thanks for the help.



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TomR Ont

02-01-2008 20:15:21




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
dr sportster Just a thought,
Had a �87 Honda that had to have the right bulbs (from the dealer at the time and three times the $$$), the bulbs I had didn�t have the right resistance. My older style bulbs were brass base; the new bulbs from the dealer had a silver base. It took a while to figure it out. Try the bulbs from the side that works, just in case they improved the bulbs again.



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oj

02-01-2008 17:24:10




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
Mum"s Chrysler had three bulbs total on each side, 2 for the rear stop/turn and one at the front, when one of the rear bulbs holders went bad it would flash front and then rear alternately, weird until i found the holder was shorting out. Maybe the same thing here? Hope this helps. oj



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Jake 2

02-01-2008 17:22:28




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
There is definitely something causing that ! ! !



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Lumpy

02-01-2008 16:14:17




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
What kind of vehicle?? You forgot to tell us. I think I have a solution but need to know what we have here.



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Jim in Ma.

02-01-2008 15:57:56




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
I learned a long time ago = whenever I have a lite problem - check the ground FIRST !



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IH2444

02-01-2008 19:39:59




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 Re: Wacky turn signal problem in reply to Jim in Ma., 02-01-2008 15:57:56  
Amen to the bad ground causing wierd signal light problems.



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John730D

02-01-2008 15:46:50




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
I'll throw my 2 cents n here also. It is a bad ground. Could be in a connector or a broken wire. OLD hit it right, it can do weird things.



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trucker40

02-01-2008 14:56:33




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
If you change both of the bulbs it will probly fix it.I just did that to my Chevy pickup a couple of days ago.You might even clean the bulbs and not change them,But I broke mine getting them out.



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pair-a-dice farm

02-01-2008 14:44:55




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
I know this is not helpful but this reminded me of a funny story I heard. 2 old brothers were tryin to get the turn signals workin on their old pickup. One was in the cab and he would turn the right signal on and ask the other if it was workin. The other brother replied "it is...it ain't...it is ...it aint



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old

02-01-2008 14:19:56




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
Most likely a ground in either one of them and then it back feeds to the other to pick up the ground. BTDT and found on one of them in my case the ground was bad and it will cause you to go crazy trying to figure it out.



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RobMD

02-01-2008 14:13:17




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 Re: Wacky turn signal problem in reply to dr sportster, 02-01-2008 13:33:58  
I've re-read your post about 20 times and i'm having a series of confused spasms.

The one thing that I can tell you is that a bad ground for any light can cause some VERY strange things to happen. Check all grounds if you can.



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Gerald J.

02-01-2008 15:01:00




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 Re: Wacky turn signal problem in reply to RobMD, 02-01-2008 14:13:17  
Including the grounds for the bed, the cab, and the engine.

Gerald J.



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RobMD

02-01-2008 14:14:25




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 ADDITIONALLY.. in reply to RobMD, 02-01-2008 14:13:17  
..check for corroded quick connectors at the light and along the harness, if applicable.



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