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Stumped need help with a bizaar problem

I recently rewired the brake lights turn signal and running lights. Everything works great till i start the truck then the only thing that works is the right turn signal in the left position. New turn signal switch. Need help . could it be because im running a 130amp alt?
 

Fellro

Moderator
Staff member
Alternator has nothing to do with it unfortunately or fortunately, depending on your view point. But it sounds like the key on feed is in the wrong place. When you test it, do you test the turn signals with the key on?
 

Fellro

Moderator
Staff member
That is quite odd for certain. I wouldn't think the ignition switch would be the culprit, but possibly could be. Not much else makes sense.
 

dustybumpers

don't play well w others
Did you use Accy on the switch, or run?
 

Jasperrc

Texas Chapter member
Strange issue for sure [confused]

Where all did you do work on the wiring?

If you didn't touch anything under the dash, and just ran new harness from under the hood to the lights, I'm going to lean toward ground issues. I've seen all kinds of inexplicable lighting behavior that ended up being poor ground or electrical connections.
 

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