FAQ: How Long Can You Drive With Check Engine Light On?

How many miles can you drive with check engine light on?

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.

Can I still drive my car with engine light on?

In many vehicles, there are two types of check engine lights—a solid light and a flashing light. A flashing light could mean a more serious problem like an overheating engine or engine misfire, sometimes causing irreversible damage. You shouldn’t drive further if this is the case.

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.

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When should I be worried about check engine light?

If the check engine light illuminates, it will either blink or remain constantly illuminated, depending on the problem. A blinking light, or in some cars a red light instead of a yellow or orange light, indicates a problem that needs immediate attention. Either way, you should have the vehicle checked by a mechanic.

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.

Can low oil cause a check engine light to go 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.

Can check engine light turn itself off?

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.

What does a solid check 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.

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

However, a flashing engine check light indicates that it is a serious problem that requires your immediate attention. If you see a flashing light, it’s best to contact a mechanic as soon as possible to prevent serious damage. To protect your vehicle—and avoid costly repairs—seek a mechanic’s help as soon as possible.

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.

How do I turn my check engine light off?

How to Get Rid of the “Check EngineLight

  1. 4 Ways to Turn off the “Check EngineLight. Method.
  2. Drive Your Car and Let the Light Go off by Itself. The first and easiest method for clearing the check engine light is driving and time.
  3. Turn the Car on and off Three Times.
  4. Disconnect and Reconnect the Battery.
  5. Use an OBD Code Reader.

How much does it cost to get engine light checked?

According to the 2017 Vehicle Health Index compiled by the automotive diagnostic website CarMD in Irvine, CA, the average cost to resolve an indicated check engine light issue is $398 including parts and labor, which is 2.7% higher this year than it was in 2016.

What causes engine light to come on and stay on?

A cracked, faulty or loose gas cap / fuel cap can cause your engine light to come on – mainly because the fuel system has a vapour leak. In other cases, it could be a more serious leak in the upper portion of the fuel system. Tighten or replace the gas cap, then keep driving.

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