How long can you drive with engine light on?
When the check engine light is solid, you can typically drive the car for hundreds of miles without an issue. Of course, that depends on which code is stored in the vehicle’s computer. If an engine sensor is faulty, the car will usually use made up sensor values to keep running.
Is it OK to drive your car with the check engine light on?
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.
What is the most common reason for check engine light?
Replacing a faulty oxygen sensor — a sensor used to optimize a vehicle’s fuel-to-air mixture to increase gas mileage and reduce emissions — is the most common cause for a check engine light.
Is check engine light serious?
The check engine light — more formally known as the malfunction indicator lamp — is a signal from the car’s engine computer that something is wrong. … If the light begins flashing, however, it indicates a more serious problem, such as a misfire that can quickly overheat the catalytic converter.
Can low oil cause a check engine light to go on?
Low oil pressure: If your car is low on oil, it can cause your check engine light to go off. This is often shown in its own glowing light along with the check engine light on the dashboard. Overheating: If your car’s engine temperature is heating up, it can once again trigger the check engine light.
Why did my check engine light turn on and then off?
In a perfect world, you’ll find that a check engine light on and off intermittently is being caused by a loose gas cap. … But many times, a check engine light will be caused by something other than a loose gas cap. It can, for example, be caused by a faulty oxygen sensor.
Why is my car shaking and check engine light on?
The check engine light will come on when any of the following issues are detected by your vehicle’s computer. Shaking or vibration may be caused by things such as faulty spark plugs, poor fuel pressure or misfires. … The other issue that may cause this type of shaking or vibration is a broken engine mount.
Where can I get my engine light checked for free?
But you may not realize you might be able to get that problem checked for free at AutoZone or your other local auto parts stores. Many drivers don’t realize that AutoZone, the nation’s largest auto parts chain, will do the following services free of charge: Read the codes on your check engine light.
Will check engine light reset itself?
Your vehicle’s check engine light will will reset by itself once the issue or problem has been repaired; this is true for most models. … If you are certain that you have resolved the issue that caused your check engine light to come on in the first place, then the light should reset itself after at least 20 cycles.
Will AutoZone do a free diagnostic?
AutoZone does. If your light is on, and you are wondering why, head down to your local AutoZone where one of our store associates can help diagnose the issue through our free Fix Finder service.
Will check engine light go off after tightening gas cap?
As soon as it’s safe, pull over and make sure your gas cap is tight. Once you’re back on the road, your check engine light should go off within 10 or 20 miles.
How much does it cost to fix check engine light?
The national average repair cost linked to a car or truck’s check engine light now stands at $357, including parts ($216) and labor ($141).