left blinker doesnt work with headlights on

[Stuntdouble83]

both blinkers work fine as long as my headlights are off. Withheadlights on left blinker does not work. Any ideas? Its a 1996 k1500

 

[Eveready]

Any weirdness like that is usually a ground issue. These trucks are famous for that. Check them all and clean each connection. My bet is the problem will go away.

That is just a guess. Others may have better suggestions. Since this is your first post why not go to the intro section and tell about yourself and your truck. Welcome to the forum.