I took off my replica (Rotary Extreme if that helps) FEED front bumper yesterday to take the lights out and clean the casing. I put in the new bulbs for both parking lights and the turn signal. Now when I use the right turn signal, everything is working fine, but it just blinks twice as fast as the left turn signal. So fast that it doesn't even reach the maximum brightness. Also would probably help in solving this problem to note that when I turn on the hazards it's the right speed. Anyone have experience with this issue?

 

check your bulbs on the side that is turning extremely fast. You might have a loose connection or something that is causing 1 side of the turn signal to have alot less resistance in the system causing it to flash at a rapid rate.

-AzEKnightz

 

^Bingo. Something causing less resistance in the system. This also happens to those who decide to replace stock bulbs with incorrect LED bulbs.