Why does my engine light come on and off?
Why does my engine light come on and off? Worn-out spark plugs can affect your engine's combustion process and throw it all out of whack. It can also lead to a check engine light on and off intermittently. The thing about bad spark plugs is that, initially at least, you're going to be able to continue to drive around with them. Why is the Check Engine light on on my Ford Focus? The contact stated while at a standstill the vehicle had difficulty starting, when the vehicle was started and loses approximately 1/4 tank of gas and the brake pedal...