I’ve seen other post similar not not quite exactly my situation. I bought this car used with the passenger-side blinker doing double time and figure it was just a busted bulb and I would take care of it. Took out the bulb cradle and sure enough the bulb coil is split. So I replaced the bulb (2825), put the cradle back into place and gave it a shot; still hyper blinking. Checked the driver side And noticed that it wasn’t flashing at all when I flipped the indicator handle for a left turn. I checked that bulb and it’s fine. The forward facing driver and passenger side turn signal bulbs both work with the left turn flashing normally and the right turn still flashing in hyper speed. That’s two good bulbs working in the front, 1 good bulb not turning on on the driver side and 1 replaced bulb on the passenger side. Hope I’m not making this confusing. Just not sure where to start the process of elimination. Any ideas?