P0455 Ford -Is car safe to drive?

Question

engine light on, have tightened gas cap. light cleared and then showed up again one day later.

Answer 1

Hi there,

Because this is an emissions code, the car is safe to drive. You will need to locate the source of the evap leak, but you will not have any issues with damaging the car or getting stranded. If the gas cap is tight then it's likely a problem with the vent control valve causing the problem.