Should I worry about my 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 the check engine light is flashing, a more severe problem has occurred.

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 it safe to drive far with check 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.

Why is my engine light on but nothing seems wrong?

Normally, the appearance of a check engine light indicates a problem somewhere in your vehicle, but nothing seems amiss. … The problem can even be as simple as forgetting to tighten your gas cap – in fact, this is the most common reason why check engine lights appear in the first place.

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What does a solid check engine light mean?

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. Get your car diagnosed, although the urgency isn’t the same as if the light was flashing at you.

Can check engine light turn itself off?

A check engine light will shut itself off if the condition that caused it is remedied. … If you then did a bunch of highway driving before changing the oil, the specs may have dropped back into the normal range, causing the light to go off.

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 long can check engine light stay 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 does a yellow check engine light mean?

Look for a serious problem that requires immediate attention. Check your dashboard gauges and lights for indications of low oil pressure or overheating. … On some cars, a yellow check engine light means investigate the problem and a red one means stop right now. Try tightening your gas cap.

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How urgent is the 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 vehicle’s gas cap was loose, it may require some driving and an overnight “parked” period before the light will reset itself.