There was a study conducted a few years ago to test the check engine light’s accuracy, and it passed with flying colors. If you end up with a check engine warning on your car, truck, or utility vehicle’s dashboard, it’s safe to say that there is something wrong that needs immediate attention. JTR Repair is going to list the common reasons why the check engine light turns on below.
Clogged Catalytic Converter
The catalytic converter lasts about 10 years before it needs to be replaced. If you drive an older automobile and receive a check engine warning, it’s possible that your catalytic converter has gotten clogged and is malfunctioning. Other signs that your catalytic converter is having problems include an overheating engine and black exhaust smoke.
Faulty EVAP Control System
You may also end up with the check engine warning if your vehicle’s EVAP control system is malfunctioning. This is the system that makes certain no gasoline or diesel fuel evaporates from the automobile. The other auto part that prevents fuel evaporation is your gas cap. If it is not creating a seal over the gas tank, your check engine light will come on.
Faulty Engine Control Module
The engine control module or unit is the main computer chip in your vehicle’s computer system. This chip can go bad and turn on the check engine light as a result. When the chip is faulty, you may also be unable to start your car, truck, or utility vehicle.
Malfunctioning MAF Sensor
The MAF sensor is also called the mass airflow sensor. This sensor reports your engine’s air intake to the engine control module. When it malfunctions, you will notice a difference in your engine’s performance. You may also notice a difference in your vehicle’s fuel economy.
Malfunctioning O2 Sensor
Both a faulty MAF sensor and a faulty O2 sensor can turn on the check engine light. In the case of the oxygen sensor, the other name for the O2 sensor, a malfunctioning O2 sensor is a common reason why drivers receive a check engine warning.
Worn Spark Plugs/Wires
Finally, if your spark plugs and/or wires are worn, you will get a check engine warning on the dashboard and end up with a misfiring engine. In fact, depending on the wear and tear suffered by the spark plugs, you may end up with a stalling engine.
Call JTR Repair in Crawfordsville, IN, today if the check engine light is illuminated on your dashboard. We will find out why the light is on and fix the problem.
