7 Possible Reasons that Your Check Engine Light Turned On

 

An illuminated check engine light isn't necessarily a sign that your engine is on the brink of failure. Nonetheless, it's best to be proactive and get to the shop for computerized diagnostics so that any developing problems can be brought to the mechanic's attention before they get worse. Here are seven common reasons the check engine light comes on.

Failing Catalytic Converter

The catalytic converter significantly reduces the amount of harmful pollutants that your vehicle produces as it drives. Signs of catalytic converter trouble include worsening acceleration, a sulphurous odor, and darkened exhaust smoke.

Faulty Oxygen Sensor

Oxygen sensors monitor the amount of unburned oxygen in the exhaust system. An oxygen sensor problem can lead to issues with the catalytic converter.

Failing Spark Plugs

If your spark plugs are dirty and overdue for replacement, then they may regularly misfire, which can cause a reduction in performance and gas mileage. Generally, vehicles made after 2000 can go 100,000 miles before plug replacement, while older vehicles need new plugs more often.

Issues with Battery/Charging System

A bad battery may trigger your check engine light by causing low voltage at the computer.

Faulty Mass Air Flow Sensor

MAF sensors keep tabs on how much air is coming in and determine how much fuel needs to be injected with it. A failing MAF sensor could cause your engine to struggle to start, or to stall shortly after starting.

Loose/Missing Gas Cap

A properly sealed gas cap will prevent fuel from evaporating before you get the chance to use it. Though it might seem bizarre, a gas cap issue may potentially trigger the check engine light.

Bad Ignition Coil

Healthy ignition coils help to generate the spark your engine needs to come roaring to life. Power loss and misfiring are symptoms of ignition coil trouble.

If you need auto repair, be sure to entrust the work to a reputable mechanic. For auto repair in Orlando, Bithlo, Waterford Lakes, Union Park, and Conway, FL, contact the experts at Express Oil Change & Service Center at (407) 502-4984. Express Oil Change & Service Center offers 10-minute oil changes in Orlando. Feel free to give Express Oil Change & Service Center a call today to make an appointment for your vehicle's repair or maintenance needs!


Express Oil Change & Tire Engineers Blog
Posted: March 23, 2021

Written By John Grassia

Written and Published By MORBiZ



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