Common Triggers of the Check Engine Light


Common Triggers of the Check Engine LightWhile the illumination of the check engine light doesn't necessarily mean that an automotive disaster is around the corner, it's still best to be proactive and get to the shop to have diagnostics performed. Otherwise, you could end up spending a lot of money on repairs that could've been nipped in the bud. Here's a look at six common causes of a check engine light turning on.

Failing Mass Air Flow Sensor

This is what keeps tabs on incoming air and then determines how much fuel to inject with it. If this is what is triggering your check engine light, it should be relatively friendly to your pocketbook to have it addressed.

Faulty Catalytic Converter

This, however, is a more expensive fix. Nonetheless, it's an issue that will need to be quickly resolved because of the important task of the catalytic converter, which is to turn carbon monoxide into an emission that does less harm to the environment.

Failing Oxygen Sensor

Your oxygen sensor monitors how much unburned oxygen is in your exhaust system. When it goes awry, your gas mileage could consequently worsen, and issues with the catalytic converter may also result.

Bad Battery or Charging System

A failing battery could result in low voltage at the computer, which could then cause the check engine light to come on.

Faulty Ignition Coil

The ignition coil plays a critical role in creating the spark need to get your engine fired up on all cylinders. Extreme weather temperatures sometimes cause ignition coils to fail.

Poorly-Fitting Gas Cap

It might seem strange that something so seemingly trivial could trigger the check engine light, but it's true. A properly-fitting gas cap will work to prevent gas from evaporating before you get the opportunity to use it.

If you're in need of check engine light diagnostics and repair be sure to get in touch with a reputable mechanic. For engine repair in Stevens Point South, WI, the experts to contact are at Auto Select at (715) 341-1576. Feel free to give Auto Select a call today to schedule an appointment for any of your repair or maintenance needs!


Auto Select Stevens Point South Blog

Written and Published By MORBiZ