Turn signal issue on 2005 saturn ion

my drivers front signal does not work. its not the bulb. took headlight assembly out and then the passanger side did not work and the drivers side did. check passenger side. now it switched again. now drivers side is out and passenger side works. both parking lights work fine. no clue what’s going on

Try changing the wheel tilt and see if that does anything.

There might be a grounding issue causing the problem. You could try running a direct ground lead to the return side of the light circuit to see if that helps. You could also try using a test light probe on the power side of the circuit to see if that works.