Will check engine light come on for electrical problems?
Electrical. If you have an issue in your electrical system that isn’t covered by another dashboard warning light, the check engine light will come on. Common electrical system problems that trigger the check engine warning include problems with your vehicle’s onboard computer system.
Can I drive with service engine soon?
The rule of thumb is that if the check engine light is flashing, you can’t keep driving the car. It’s an emergency. Often it indicates an engine misfire. If you keep driving, you will likely cause irreversible damage, mostly to the (expensive) catalytic converter.
How long does a car battery need to be disconnected to reset the computer?
Because some of the electrical current is preserved in the computer for a while afterward, most sources recommend leaving the battery disconnected for at least 15 minutes to make sure the computer forgets the code before you reconnect the battery.
Can a loose battery terminal cause check engine light?
It is entirely possible that the battery was faulty causing low voltage at the computer, which in turn can turn on the check engine light. The other common issue is the battery terminals (GM uses side mount terminals) build up with corrosion and cause all kind of problems.
Can a loose battery cause check engine light?
So many of today’s car problems are caused by faulty/undercharged batteries or poor electrical connections. It is entirely possible that the battery was faulty causing low voltage at the computer, which in turn can turn on the check engine light.
Can alternator cause check engine light?
A faulty alternator not only turns the check engine light on, it also risks your safety. If the alternator fails when you’re driving, the car radio will go off, the interior lights will dim, and you will experience extreme difficulty in driving. The reason being all power is lost.
Can a low battery cause engine problems?
Yes, a bad battery can cause all sorts of lights to come on the dash with engine problems to boot.
Will low battery cause warning lights to come on?
A leading sign of a weak battery is the sudden and spontaneous illumination of multiple warning lights and warning messages in your instrument cluster, possibly accompanied by the non-functionality of various systems including the cruise control, anti-lock brakes, traction control, and more.
How do I know if I need a new alternator or battery?
If your engine won’t turn over or takes far longer than usual, it’s time to grab the jumper cables and attempt a jump-start. If your engine starts and stays running but won’t start again later, it’s likely a battery problem. If your vehicle immediately stalls, it’s probably a bad alternator.