Left signal want blink - Regal Buick Cars & Trucks

Get the left signal to flash fast then walk around the car to see which light isn't flashing then change the bulb or socket if they all appear to be flashing (front and rear) turn on the right turn signal then look into the front and rear lens and count the number of bulbs flashing, now do the same thing on the left. Many times there's more than 1 bulb in each lamp. I hope this helps. Take care.

sounds like the turn signal switch in faulty.
i found some great info that explains the switch and its functions.


Self Canceling Signals How Turn Signals Work

(page 4)
Cheers!

both of the bulbs on the right side are busted

The flasher is defective.

remove rear left lens and install new turn signal bulb.

this sounds like a earthing problem , so check the wiring for the head lights, see if any wires are trapped between something, bare wire touching car body , anythingthat doesn't look correct, could also be the indicator lever itself with a problem , but check the headlight wiring first

any increase in bink speed is direcly related to a bulb being burt out.

Replace the bulb that stays on and doesn't blink, if that doesn't solve the problem, let me know.

You need a new turn signal switch