Car Repair near Fontana, CA

Reasons Why Your Check Engine Light Might Be On

Every automobile owner dreads the day that their check engine light comes on. It could be something small, or it could mean that you need an expensive vehicle repair. Modern vehicles are made run with little problems if they are properly maintained, but periodic mechanical issues still do occur. If your check engine light does come on one day, you might be persuaded to ignore it. After all, as long as your vehicle is still running you should be okay to drive it, correct? Not exactly. Your check engine light appears when part of your vehicle needs some attention. Sometimes it's minor, but other times it could be a serious problem waiting to happen.

To avoid a pricey car or truck repair, it's in your best interest to get to the root of your check engine warning as soon as possible. Bring your vehicle into AI and Sons auto shop and we will diagnose the problem for you. We are the most trusted auto repair shop in the city. No vehicle repair service is too big or too small for our dedicated team of mechanics. Here are some common reasons your check engine light might come on:

Catalytic Converters near Fontana

The function of a catalytic converter is to reduce the amount of carbon monoxide released into the environment by your vehicle. Carbon monoxide is incredibly harmful to the environment, so your catalytic converter transforms it into carbon dioxide instead. If you are great about getting routine maintenance performed on your automobile, you will likely never have a problem with your catalytic converter. However, if you've neglected to have your vehicle checked by a professional mechanic on a regular basis, it may fair and cause your check engine light to come on.

Vacuum System Issues

Your vehicles vacuum system serves many different purposes. Your brake booster is operated by a vacuum, for example. But your vacuum system is also used to keep harmful emission levels down by filtering the fumes that are generated when fuel evaporates within your engine. Sometimes, your vacuum system can experience a leak which renders it unable to perform these vital tasks within your engine. Vacuum leak repairs are a relatively simple automobile service, however, if left unchecked a leaking vacuum could lead to bigger problems.

Oxygen Sensor Malfunction

The oxygen sensor in your automobile is responsible for detecting the presence of oxygen together with carbon dioxide being released through your vehicles exhaust. When the sensor detects oxygen, it will regulate your fuel in such a way that combustion is increased to help avoid engine jerking. If your oxygen sensor fails, your car may still seem to be running normally. However, you may soon find that you're experiencing fuel efficiency issues as your car or truck runs through gas at a faster pace. What's worse, certain components within your engine, such as your catalytic converter, might begin to deteriorate.

Mass Airflow Sensor

You mass airflow sensor is different from your oxygen sensor but still performs a vital function in your vehicle. This sensor is responsible for measuring the total about of air that enters into the combustion chamber of your engine. From there, it will determine the proper air to fuel ration necessary for your engine to run smoothly. When this part of your engine fails, it could lead to issues with your spark plugs, oxygen sensor, and catalytic converter. Other than your check engine light, you may not know that your mass airflow sensor is experiencing a problem until further occurs.

The best way to avoid an unexpected trip to the auto shop is to have scheduled maintenance checks, oil changes, and other routine automotive services performed on your vehicle by a reputable auto shop. If your check engine light does come on, be sure to bring it in to the trusted mechanics at AI and Sons right away. We will quickly diagnose the problem and give you a fair and honest quote for your automotive repair. From breaks, to transmissions, we pride ourselves on giving all of our customers top quality auto service at affordable prices. Come find out for yourself why we stand out above the rest of the auto shops in town.

Spark Plug Failure or Malfunction

Your automobile relies on your spark plugs to ignite properly. Spark plugs emit electricity that initiates an ignition that is needed for combustion and the burning of fuel. Spark plugs can go bad over time, causing them to lose their ability to generate the high volt electricity needed for them to work properly. When this happens, you will typically notice that your car or truck vibrates when you come to a stop light or if you're in slower traffic. In some cases, your car or truck may spontaneously shut down together. Looking into your check engine light right away could help you avoid these problems. Your trusted mechanic at AI and Sons can quickly replace your worn spark plugs to make sure you're not left stranded at a stop light.

Another problem that might cause your check engine light to come on is damage to the wires attached to your spark plugs. Like the spark plugs themselves, these wires can become worn and need changing to keep up engine performance.

A Loosened Fuel Cap

That's correct, sometimes your check engine light might come on for something as simple as a Loosened fuel cap. When you pump gas into your vehicle, you may accidently leave your fuel cap on too Loosened, or neglect to close it at all. When that happens, your check engine light might come on as a way to warn you that you need to tighten your fuel cap properly. Other times, your fuel cap may be worn to the point that it does not tighten appropriately. In this instance, simply changing your fuel cap should take care of the problem. If a Loosened fuel cap is the cause of your check engine light coming on, you can easily remedy the problem yourself without the need of an auto repair service professional.

We are a full-service auto repair shop and we are trusted by our many customers.

• Serving Rancho Cucamonga for over 50 years
• Computer Diagnostic check
• No Appointment Necessary
• Tow Service Available
• Tire, Brake, and Transmission service
• Battery Replacement
• Diesel vehicle service
Very honest family run business. I drive a long way to have them work on my family’s vehicles.
Maddy Hunt Avatar
Maddy Hunt
I left my car for no longer than 3 hours. He Identified the issue, did the quick and easy fix and sent me on my way. I will probably be bringing my car here for all my future repairs. Thanks so much!
Darralyn Thompson Avatar
Darralyn Thompson
Very helpful and will in to help.
Wilhelmenia Fortson Avatar
Wilhelmenia Fortson
Al & Sons Automotive - 7126 Amethyst Ave, Rancho Cucamonga, CA 91701