Blinker Issues

Check this out... The issue with my left front blinker is with park/head lights off, both blinkers operate normally. But with the park or headlights on, the in-cab indicator tells you that the left bulb is out. This is weird becuase the bulb still functions as a blinker with the lights on...just not as a parking light. In a nutshell, the bulb will only flash. not stay lit.

I have seen the element short across the other and cause some real funny problems. Try replacing the bulb in question and see if that fixes your problem.

The bulb in there is new and it does the same thing when you swap bulbs from the good blinker.