Quick Answer: What Is The Most Common Reason For Check Engine Light?

Will check engine light reset itself?

A check engine light will shut itself off if the condition that caused it is remedied.

So, if your converter is marginal, and you did a lot of stop-and-go driving, which creates high demand for the converter, that may have turned on the check engine light..

Where do I go to fix my check engine light?

Solving check engine light problemsTake your car to a mechanic and pay a diagnostic fee. Often, the fee is waived if you agree to have the necessary service performed at that garage.Bring your car to an auto parts store and have the code read for free. … Buy an inexpensive scanner and read the code yourself.

What does a solid engine light mean?

If the engine light comes on and flashes, that indicates an immediate concern. You need to find a safe place to pull over and turn your vehicle off. … A solid Check Engine Light can mean something like a loose gas cap, or it can indicate a more in-depth problem like a fuel, timing, or transmission issue.

Will check engine light go off after replacing gas cap?

Faulty Gas Cap – Your vehicle is pretty good at warning you of any potential trouble. Something as simple as forgetting to replace the gas cap could cause your “check engine” light to come on.

Can a new air filter cause check engine light?

This is why air filter replacement is so important. An air filter that isn’t changed on a regular basis will become contaminated with dirt and debris. This prevents the proper amount of air from entering the engine. In extreme cases, a contaminated air filter can turn on the check engine light.

How do you fix a check engine light?

If the check engine light comes on, here are some tips on what you should do:Look for a serious problem that requires immediate attention. … Try tightening your gas cap. … Reduce speed and load. … Use built-in diagnostic services, if available.

Can low oil cause the check engine light to come on?

Low oil pressure Low oil pressure is a common cause of a check engine light turning on, and it can seriously interfere with your car’s performance. Usually, if this is the case, your oil light will also appear. … In any case, low enough oil pressure will disable your vehicle, so get this repaired immediately.

Who will check engine light for free?

FREE Check Engine Light Help is one of several free services offered by O’Reilly Auto Parts. Here are some others: FREE Battery Testing.

How much is it to fix a check engine light?

Here’s some good news for cash-strapped motorists: The average cost to repair a mechanical issue that’s indicated by the “check engine” light on a vehicle’s instrument panel dropped by 10 percent last year, now standing at $357 including parts ($216) and labor ($141).

How long can I drive with the check 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.

What could cause the check engine light to come on?

The light could be a minor issue, such as a faulty gas cap, or it could mean something more serious, such as a misfiring engine. … 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.

Is it safe to drive with 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.