germilns in my truck

[silvereagle1770]

well i came over here with the rest of you guys now i need some help with my truck ive tried every thing i can think of. my lights and turn singals are going nuts the riht side works fine but the left side has lost it ok .when i turn on the left blinker it works but if i turn on the lights it stops blinking when i turn off the lights it starts blinking againe ive traced all the wires and cant find nothing wrong with them checked all the grounds but im not finding what would cause this anybody know any suggestion would help thanks