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Old 01-03-2012, 12:15 AM   #3
ls1nova71
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Join Date: Dec 2009
Location: Independence Mo
Posts: 4,118
Re: Turn Singnal Problems

The rear side markers never flash. The fronts it sounds like you may have the bulbs in wrong or wired up wrong, meaning the low filiments are flashing and the high filiments are on with the headlights. If that's the case they would appear to not flash with the headlights on because the highs are over powering the lows, if that makes sense.

Also could be a bad ground at the front bumper, you could try taking a wire and holding it on the bumper and the other end at a good ground or the negative battery cable and see if your problem goes away.
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5.3 swap into my RUSTY '71 C10
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