Quick Answer: How Much Does It Cost To Check A Check Engine Light?

Can I check my own check engine light?

You can.

All that you need to check your own light is an OBD-II reader, which can pull codes that help you find out what’s wrong with your car.

If you don’t have a code reader, keep reading to learn the most common causes, and then bring your car to your local AutoZone to find out why your Check Engine Light is on..

Can AutoZone take off check engine light?

AutoZone can help you diagnose the cause of the light and help you correct it. In most cases disconnecting the battery for a few minutes then reconnecting will clear the fault codes and turn off the light. But if the issue has not been resolved it will come back on, in some cases almost immediately.

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. With over 400,000 repairs nationwide, oxygen sensor replacements account for 8% of all check engine light repairs.

Where do I go when my check engine light is on?

Bring your car to an auto parts store and have the code read for free. The free check engine light diagnosis is good because if the code turns out to be for something minor, you might even be able to fix it yourself.

Why is my car shaking and check engine light on?

If your check engine light is accompanied by your car shaking, there is cause for serious concern. The shaking feeling can be caused by misfires, poor fuel pressure, faulty spark plugs, or a broken engine mount.

Does the check engine light come on for a bad alternator?

If you’re driving the vehicle when the alternator goes out, the vehicle will eventually stall. On modern vehicles, an undercharging charging alternator may result in an illuminated check engine light. It may also cause all kinds of problems with the onboard electronics and computer controls.

Can bad spark plugs cause the check engine light to come on?

Another common reason for seeing a check engine light is faulty spark plugs or plug wires. Your spark plugs and wires are what ignites the fuel/air combo to make your engine turn. Old or faulty plugs and wires can cause weakened engine performance and poor fuel economy at best.

Will AutoZone check my check engine light for free?

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. Test your battery’s voltage. Check your alternator and starter.

Who can check engine light for free?

AutoZone is well known for doing free check engine light diagnostics. Just go into the store and ask someone behind the counter.

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

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.

What could be wrong if your check engine light comes on?

Don’t Just Turn It Off; Fix the Problem 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.

What does it mean when your check engine light comes on and then goes off?

It goes on when a sensor reports a voltage to the computer that is not in the prescribed range. It’s called an intermittent fault when the engine check light goes on and off. If a scanner is attached when the light is off, you should get a reading of any stored code in the computer. … It’s an emissions sensor.

Where can I go to get my check engine light checked?

Where To Get It CheckedAt a local auto parts store.Check the codes yourself.Go to your local mechanic.Go to a dealership.My check engine light – no repairs required.