The check-engine light has a way of turning an ordinary commute into a slow simmer of worry. Drivers sometimes hope it will switch off on its own, especially if the car still feels normal. But that tiny warning can signal problems that grow quietly until they become expensive. Ford engines are sturdy, yet they can only take so much before small issues snowball into major failures. Paying attention to the check-engine light early can spare you from a ruined engine and a drained wallet.
