1991 Mercury Tracer Headlight Problem

My 91 tracer has a headlight problem. When I have the headlights on and use my left turn signal the headlights turn off until I turn the signal off. It doesn't do it when I turn right and doesn't do it when I have my running lights going.

I can hold the signal light down to the point of clicking into place and it works but as soon as it gets past a certain point it turns the headlights off.

I've replaced the relay but still nothing.