Check Engine Light: 6 Common Triggers

 

While something as minor as a loose gas cap can cause a check engine light to come on, it's still best to get to the shop for diagnostics so that you don't end up spending a lot of money on repairs that could've been nipped in the bud. Here's a look at six common reasons that a check engine light turns on.

Faulty Ignition Coil

Ignition coils play a central role in getting engines to fire up on all cylinders. Sometimes they will fail due to weather extremes.

Failing Mass Air Flow Sensor

Mass airflow sensors keep tabs on the amount of incoming air and then calculate how much fuel to inject with it. If this is the source of your check engine light illuminating, you'll be fortunate in that this shouldn't cost you much to take care of.

Faulty Catalytic Converter

This issue, however, could put a significant dent in your wallet. Nonetheless, it'll need to be done because of the catalytic converter's important job, which is to turn carbon monoxide into a less harmful emission.

Failing Oxygen Sensor

Your oxygen sensor monitors the quantity of unburned oxygen in your exhaust system. When an oxygen sensor isn't functioning properly, there could be a dip in gas mileage, as well as issues with the catalytic converter.

Bad Battery or Charging System

If your battery is failing, it could cause low voltage at the computer, which could consequently set off the check engine light.

Loose or Missing Gas Cap

When a gas cap doesn't fit properly, fuel could evaporate before you have the chance to use it. It might seem strange, but this issue could potentially trigger the check engine light.

If you're in need of auto repair, be sure to visit a reputable mechanic. For diagnostics and engine repair in Sacramento, CA, the experts to contact are at Freeport Automotive at (916) 389-2405. Feel free to give Freeport Automotive a call today to schedule an appointment for any of your repair or maintenance needs!


Freeport Automotive Blog

Written and Published By MORBiZ




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