My Check Engine Light Is On What Does That Mean?

What could cause the check engine light to come on?

Spark Plugs

Finally, worn spark plugs or plug wires will result in a check engine warning. Just about anything wrong with your vehicle’s ignition system will likely cause your check engine light to come on. Stalls are another indicator of spark plug trouble.

Is it safe to drive your car with the check engine light on?

If the check engine light comes on while you’re driving, it can be unnerving. The check engine light means there’s a problem somewhere in your emissions system. Regardless, you’re safe to drive for now as long as the car isn’t performing strangely. Just have the check engine light checked and the problem repaired.

How do you fix a check engine light?

If the check engine light comes on, here are some tips on what you should do:

  1. Look for a serious problem that requires immediate attention.
  2. Try tightening your gas cap.
  3. Reduce speed and load.
  4. Use built-in diagnostic services, if available.
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Can your engine light came on for no reason?

Fuel System Issues

Something as simple as forgetting to replace the gas cap could cause yourcheck enginelight to come on. Faulty ignition – Spark plugs ignite the fuel as it flows through the engine’s cylinders. Failing to replace a spark plug could lead to catalytic converter failure or other serious problems.

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.

How serious is check engine light?

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.

How many miles do you have to drive to clear a check engine light?

To make sure the check engine light does not reappear, it’s recommended that you drive your car 30 to 100 miles. This enables the vehicle’s “Drive Cycle” to reset, as the various sensors need time to recalibrate.

How long can I 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.

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Who does check engine lights 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.

Can AutoZone check engine light?

Does AutoZone Scan Check Engine Lights? 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.

How much is it to fix a 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).

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