4 Essential Things to Know About Your Car’s Check Engine Light

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When a car’s Check Engine Light comes on, it does not necessarily mean that it's cause for panic. However, it does mean that the vehicle needs some attention to make sure that it continues to run properly.

What Does the Check Engine Light Mean?

It’s often difficult to discern exactly why the light came on in the first place without having a diagnostic test performed on your vehicle, which can be frustrating for many owners. A diagnostic test is usually very fast, and it can give you a better idea of what the extent of the problem is so you can take care of it.

The Most Common Reasons the Check Engine Light Comes On

A number of different problems can cause the Check Engine Light to turn on. The following are five of the most common reasons.

The oxygen sensor could be burned out or faulty, which could then give false readings to the car’s computer and reduce your fuel efficiency. A loose gas cap could also cause the Check Engine Light to come on, so checking for a loose or faulty cap should be one of the first things you do. In addition, it could be a problem with the catalytic converter, the mass airflow sensor, or the spark plugs and wires.

What Should You Do When the Light Comes On?

Unless the vehicle isn’t starting, is stalling, or smoking, your first step should be to get a diagnostic test so you can determine what steps to take for repair. Because so many different things in the vehicle could cause the light to come on, getting the advice of a professional mechanic is often your best option.

Never Ignore the Light

One of the things that you do not want to do when the light comes on is panic or worry. Get the diagnosis and then take care of the problem. It’s not usually an emergency, so you should have time to take care of it. However, you should never simply ignore the light.

You want your vehicle to last as long as possible, and that means you need to take good care of it. Whenever the Check Engine Light comes on, have a certified mobile mechanic from YourMechanic mechanic inspect the vehicle.


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Rigoberto

9 years of experience
706 reviews
Rigoberto
9 years of experience
Chevrolet Equinox - Brake Pads Replacement (Rear) - Niles, Illinois
Rigo was great! He got there early, finished the job early, left everything clean. He changed my rear pads and rotors. The original quoted time was 90 minutes, he was done in about 60. He knows what he is doing and I am recommending him to all my friends and coworkers.
Mercedes-Benz C250 - Brake Pads Replacement (Front, Rear) - Chicago, Illinois
Rigo is a maverick hands down. Don’t take your car for work elsewhere. Especially great at Mercedes—this guy knows his profession! I will be using him for everything related to my car going forward.

Arturo

25 years of experience
35 reviews
Arturo
25 years of experience
Kia Forte - Brake Pads Replacement (Front) - San Diego, California
ARTURO is great! very professional , fast, replaced my front brake pads and oil an filter change. everything now works and works well. Brakes have much improved stopping power and engine is smooth and quiet.Arturo is also kind and thoughtful. "Your mechanic" is very fortunate to have Arturo Lopez represent your company. I enthusiastically recommend him and "Your mechanic> as a fine operation Best regards to the Team Peter Marto
Nissan Maxima - Brake Pads Replacement (Front, Rear) - San Diego, California
Arturo was prompt and completed my brake repair, including new rotors in a very efficient manner. I am very pleased with the quality of the work and the parts and will definitely look to have him service our other car in the near future.

Scott

32 years of experience
345 reviews
Scott
32 years of experience
Lexus IS250 - Brake Pads Replacement (Rear) - Denver, Colorado
Always on time, speedy, professional, and pleasant to interact with. The work is always consistent and we'll done. I can't reccomend Scott highly enough!

Michael

10 years of experience
15 reviews
Michael
10 years of experience
Nissan Sentra - Brake Pads Replacement (Front) - Conyers, Georgia
He was promptly on time and got the job done efficiently in a timely manner. I really appreciate the rapid respone on getting the job done! I would most definitely use this service again.

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