What car problems trigger the check engine light?

What car problems trigger the check engine light?When the check engine light suddenly flashes on, there is often an impulse to worry that engine failure is near. But an illuminated check engine light doesn't necessarily mean that you're on the brink of major engine trouble. Still, it's smart to bring your vehicle to the shop for computerized diagnostics so that any developing issues can be addressed before worsening and requiring more expensive repairs. Here's a look at seven check engine light triggers.

Bad Ignition Coil

Healthy ignition coils play an integral role in creating the spark necessary to bring your engine roaring to life. Misfiring and power loss are two indications of an ignition coil issue.

Failing Catalytic Converter

Signs of a failing catalytic converter include worsening acceleration and darkened exhaust smoke. It's important to drive with a healthy catalytic converter so that carbon monoxide is turned into a less polluting emission.

Faulty Oxygen Sensor

Oxygen sensors determine how much oxygen is in the exhaust system, which allows the engine to make the necessary adjustments to optimize operating efficiency. Oxygen sensor problems can cause catalytic converter trouble.

Failing Mass Air Flow Sensor

MAF sensors monitor the amount of incoming air and determine how much fuel should be injected with it. A MAF sensor issue could cause your engine to stall out soon after you start it.

Bad Spark Plugs

Aging, dirty spark plugs are liable to misfire, which can cause a reduction in performance and MPGs. Older cars often need plugs changed every 30,000 miles, while vehicles made after 2000 can often go 100,000 miles before plug replacement is needed.

Loose/Missing Gas Cap

Though it may seem strange, a loose or missing gas cap could trigger your check engine light. It could also allow fuel to evaporate before you manage to use it.

Failing Battery/Charging System

If a malfunctioning battery causes low voltage at the computer, it could cause the check engine light to come on.

If you need check engine light diagnostics & repair, be sure to bring your vehicle to a reputable mechanic. For auto repair in Casper, Bar Nunn, and Mills, WY, contact the experts at Chuck's Auto Repair at (307) 265-0209. Chuck's Auto Repair also specializes in transmission repair in Mills, WY. Feel free to give Chuck's Auto Repair a call today to schedule an appointment for any of your vehicle's repair or maintenance needs!

Chucks Auto Repair Blog
Posted: November 21, 2020

Written and Published By MORBiZ

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