Will a missing gas cap cause the check engine light to come on?
Will a missing gas cap cause the check engine light to come on? Something as simple as forgetting to replace the gas cap could cause your “check engine” light to come on. This is because the gas cap keeps vapors from escaping the fuel tank. A loose or broken gas cap can dramatically reduce fuel efficiency and increase emissions. Can a loose gas cap cause your check engine light to go off? If it does not click in place or is loose after clicking into place the cap needs to be replaced. The check engine light should go off after...