Quick Answer: How Many Miles Can You Drive With Check Engine Light On?

How long can you drive with 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.

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.

Does check engine light come on at certain mileage?

Some vehicles are set up so that the Check Engine light comes on at certain mileage intervals. This doesn’t occur in all vehicles, but there are still a few left that have the “reminder” Check Engine light equipped. Typically this happens at 30,000, 60,000, or 100,000-mile intervals.

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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 a loose gas cap cause the engine light to come on?

Something as simple as forgetting to replace the gas cap could cause your “check enginelight to come on. This is because the gas cap keeps vapors from escaping the fuel tank. A loose or broken gas cap can dramatically reduce fuel efficiency and increase emissions.

Can needing an oil change cause check engine light?

1. Your Car Needs an Oil Change. An illuminated check engine light is the first warning sign that your vehicle needs an oil change. It can activate because the oil is too dirty or when there’s not enough flowing throughout the engine.

How urgent is a check engine light?

Unlike a Temperature or Oil Pressure light, a Check Engine light is usually not an urgent, “Stop right now or you may cause permanent damage!” type of situation, unless it is flashing. If your gas cap is loose or the seal is not tight, the vapor leakage can cause your fuel system to trigger the check engine light.

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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.

Can AutoZone reset check engine light?

Originally Answered: Can AutoZone turn off the check engine light? Yes, Autozone can use a scanner to read and clear DTC’s.

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.

What to do if check engine light is on?

What to Do About the Check Engine Light

  1. Look for a serious problem that requires immediate attention. Check your dashboard gauges and lights for indications of low oil pressure or overheating.
  2. Try tightening your gas cap.
  3. Reduce speed and load.
  4. Use built-in diagnostic services, if available.

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