An illuminated check engine light doesn’t automatically mean that engine failure is imminent. But it’s still best to get to the shop for computerized diagnostics so that any emerging engine issues can be pinpointed and addressed before they worsen and require more expensive repairs. At Everett Transmission & Auto Repair, our local mechanics provide expert check engine light diagnostics and repair in the greater Everett, MA area. Here are six common reasons the check engine light flashes on. 

Failing Catalytic Converter

To ensure that your vehicle is minimally polluting and is able to pass an emissions test, you’ll need a healthy catalytic converter. Symptoms of a failing catalytic converter include poor acceleration, dark exhaust smoke, and a sulfurous odor.

Faulty Oxygen Sensor

Oxygen sensors monitor how much unburned oxygen is in the exhaust system. When there’s a problem with an oxygen sensor, catalytic converter trouble can result.

Failing Mass Air Flow Sensor

MAF sensors oversee the quantity of incoming air and calculate how much fuel should be injected with it. Indications of a failing MAF sensor include herky-jerky acceleration, as well as stalling soon after you start your car.

Bad Battery/Charging System

A failing battery can cause low voltage at the computer, at which point the check engine light could be triggered. 

Loose/Missing Gas Cap

Although it might sound strange, a loose or missing gas cap is sometimes the culprit for an illuminated check engine light. It’s important that your gas cap is on tight so that gas doesn’t evaporate before your engine gets the chance to run on it.

Bad Ignition Coil

Signs of an ignition coil problem include power loss and misfiring. With ignition coil trouble, you may not get the spark you need for your engine to fire up.

Check Engine Light Repair in Everett, MA

When you need auto repair in Everett, MA and the surrounding area, contact Everett Transmission & Auto Repair at (617) 958-2785. At our local auto shop, we can expertly address your vehicle’s repair and maintenance needs. Feel free to give us a call today to make an appointment!