I have a problem with my 67 rs camaro's when I use the flasher both rear and drivers front light blink the pass doesn't light up, but all 4 lights work with turn signals and park lights ?? new wiring, battery, bulbs and I rechecked the bulbs any idears??????:clonk:

They use different filaments in the bulbs. So either you have two bad bulbs, bad connections, bad grounds, or the directional switch is bad.

how do you check the directional switch