I think you answered your own question, buy a new bulb.

MtnGal wrote:

 Could somebody help me with this problem. When I turn on the left blinker it is blinking so fast that you almost can't see it blink in daylight..... <went to check the lights on the van in the rain>At night only the rear light is like a strobe. The front light doesn't blink...lolIs this the classic way the van tells you, you have a blown bulb??