Should I Take a Check Engine Light Seriously?

Yes, Auto Solutions advises that you should take your check engine light seriously. A study was conducted in 2019 to test the accuracy of the check engine light. The light tested nearly 100 percent positive in reporting problems with the engine seen or unseen. In other words, your check engine light does not come on unless there is an issue. Let’s talk about some of these issues below.

Clogged Catalytic Converter

A clogged catalytic converter will cause the check engine light to come on as will a malfunctioning catalytic converter. Another common sign that your catalytic converter is having problems is the smell of rotten eggs. Your engine might also overheat.

Faulty EVAP Control System

Problems with the EVAP control system will also generate a check engine light warning. This system ensures that diesel fuel or gasoline vapors stay within your automobile. It makes certain that these harmful vapors do not make their way into the environment.

Faulty Engine Control Unit

The engine control unit is your vehicle’s main computer chip. It communicates with system sensors and makes adjustments to keep your engine running efficiently. If the engine control unit goes bad, it will cut your engine and turn on the check engine light.

Malfunctioning MAF Sensor

You may also receive a check engine warning if your mass airflow sensor is malfunctioning. A common problem that causes the MAF sensor to malfunction is dirt buildup. You may also have engine performance problems such as lagging or surging.

Malfunctioning O2 Sensor

The oxygen sensor generally lasts about 100,000 miles in newer automobiles. After this time, it is prone to malfunction and, as a consequence, you’ll end up with the check engine warning. You may also notice a reduction in your fuel economy and black exhaust smoke flowing out of the tailpipe.

Unsealed Fuel Cap

Aside from the EVAP control system your fuel cap also prevents fuel from evaporating out of the tank. If it is no longer able to seal the fuel tank and prevent evaporation, you will end up with the check engine warning. Sometimes, tightening the cap resolves the problem.

Worn Spark Plugs/Wires

Finally, if your spark plugs and/or wires are worn, you will experience more than a misfiring and hiccupping engine. The check engine light will also turn on.

Auto Solutions in Orlando, FL, can run a diagnostic test to find out why your check engine light is on. Once we determine the problem, we will fix it so you no longer have a check engine warning on your dashboard.

Photo by Kelly Colby from Getty Images via Canva Pro

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