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If your check engine light is on, it means the Engine Control Unit (ECU, the computer that controls your car's engine) has found a problem. It could be as serious as a blown head gasket or as simple as a loose gas cap. Some common things that can make your check engine light come on are vacuum leaks, a bad oxygen (O2) sensor, a sticky EGR valve.
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The Check Engine light, also known as the malfunction indicator lamp, activates when the computer in your vehicle detects a fault or issue from an electrical component or sensor on the engine, transmission, or exhaust system on the vehicle. In some cases, the Check Engine light may simply be an image or icon of an engine, or it may use text.
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If your vehicle is a 1996 or newer model year, head to your local O'Reilly Auto Parts store and ask a parts professional about a free Check Engine light diagnostic scan. The team member will follow you to your vehicle with an OBD-II code reader, hook up the scanner to your vehicle's OBD-II port, and read the diagnostic trouble codes (DTCs).
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Americans are holding onto their vehicles longer than ever, with the average age of a car in 2020 rising to a record 12.1 years, according to data from IHS Markit. Formally known as the malfunction indicator lamp, it is a signal from the vehicle's engine computer that something's wrong. The light could be a minor issue, such as a faulty gas cap, or it could mean something more serious.
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Here's how it works: First, locate your car's OBD-II port and plug in the scanner, or the adapter that will link to a wireless device. Make sure your car is then turned on and running so the.
My Check Engine Light Is On!
The Check Engine Light indicates that the vehicle's computer has recognized a fault that needs to be repaired. Issues can range from anything minor, such as a loose gas cap, to problems that are more severe, such as a failing sensor. The Check Engine Light looks different in different car models.
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The check engine light warns a driver of a problem with the car's emissions system or trouble with a critical internal function. Address the issue as soon as possible. If the light comes on and.
Should You Ignore the Check Engine Light? TUNERWORKS
The check engine light is also sometimes called the malfunction indicator lamp. It is connected to your vehicle's diagnostic system and is generally an indicator that the computer has detected a problem. Most cars made after 1996 will have this light and it will be located somewhere on your dashboard display.
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One common check engine light code is P0420, which indicates a problem with the catalytic converter. This could be caused by issues such as a faulty oxygen sensor or an exhaust leak. To troubleshoot this issue, it may be necessary to replace the oxygen sensor or inspect and repair any leaks in the exhaust system.
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When the MIL symbol lights up your dashboard, your immediate reaction will probably be to pull over and have a look. If you hear, smell, or see anything unusual in association with the first.
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The check engine light โ more formally known as the malfunction indicator lamp (MIL) โ is a signal from the car's engine computer that something is wrong. The light could be a minor issue.
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The causes behind a Check Engine Light activation can vary widely, but some common culprits include: 1. Loose or Faulty Gas Cap. Your gas cap is part of a sealed evaporative emissions system that recirculates gasoline vapors from your gas tank and keeps them from escaping into the air.
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A blinking check engine light may indicate a serious problem. A solid check engine light could be caused by something as simple as a loose gas cap, but a flashing check engine light is a bigger deal. The flashing is designed to get your attention, so do not ignore a blinking check engine light.
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1. Fuel Cap. The fuel cap, along with a series of lines inside of the gas tank, makes up a system that recirculates gasoline vapors and keeps them from escaping into the surrounding area. A loose or faulty fuel cap can result in unintended emissions, leading to the check engine light turning on. Additionally, loose fuel caps can mean the gas in.
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These OBD-II codes will appear if the system senses a problem with your vehicle's catalytic converter. Which code you will get will depend on which bank of the engine is producing the code. A 4-cylinder engine will result in a P0420 code, while a 6-cylinder engine will result in a P0430 code.
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Rarely, but every so often, the check engine light means that you actually have a problem with part of the engine. There are times when something dire has happened. A broken timing belt. A cracked block. These are the lightning strike-like events that almost never happen, but if they do, the CEL will be there.