My blinkers are malfunctioning. When turning on the light, the left blinkers would turn on, but the right would remain off. However when turning on the blinkers, only the right side would blink and the left won't function. The front light bulbs, rear bulbs and blinkers all work fine. I tried replacing both the front blinkers, even checked the fuses, but there's still a problem. What kind of problem would this be? Would there be a recommended place to bring in and check (that won't rip me off)? Any response would be much appreciated. Thanks.