Why I write on alternator replacement
Pull over, turn off your car and check your gas cap before doing anything else. (To be on the safe side, also check for low oil pressure or overheating before restarting your car. You should not operate your car under either of those circumstances. ) If that doesn't help, then the wisest thing to do is to get your car into the repair shop as soon as possible, even if your car is still operating smoothly. Don't ignore that check engine light! A check engine light can indicate serious driveability issues with your engine, such as transmission, steering and ride control or emissions failures.