Common Reasons the Check Engine Light Will Come On

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Common Reasons the Check Engine Light Will Come On


Common Reasons the Check Engine Light Will Come OnFew things are worse than driving down the road and having that pesky little check engine light suddenly start to glow. There's often a moment of panic and then it seems like many people just ignore the problem hoping that their car will somehow fix itself. Unfortunately, ignoring this light can cause even bigger, more expensive issues down the road. Many common causes of the check engine light coming on are due to small, usually inexpensive to repair problems. Yet, should those problems go unchecked, larger issues can arise. Here are four problems that will make the check engine light glow!

Catalytic Converter

Your vehicle creates a lot of hazardous exhaust fumes during regular use. The catalytic converter is designed to convert those gases into less harmful emissions. If this part becomes unable to do so it will cause the check engine light to glow. However, this part usually won't fail unless something else already taken a dive, which would have likely made the light glow before hand. This is a prime example of why you should take your vehicle to a local auto repair shop as soon as the check engine light comes on to have the problem diagnosed.

Loose Gas Cap

Forgetting to tighten your gas cap after filling up can actually cause the check engine light to come on. It may also come on if it the cap broken or cracked. This is because the gap can allow gas to evaporate and escape out of the filler hose. Avoid having to bring your car in for a check engine light diagnosis for this by double checking your gas cap every time you fill up!

Bad Ignition Coil

The ignition coil creates the spark needed to get the engine running. This part is subject to regular wear and tear and does go bad after many, many miles, causing the light to glow. You may also notice trouble starting your car should this be the cause of the engine light coming on.

Faulty Mass Air Flow Sensor

Your vehicle runs on a mixture of gas and air. The mass air flow (MAF) sensor monitors incoming air and calculates how much of it needs to be mixed with the gasoline to ensure the engine runs right. If the sensor malfunctions the check engine light will glow. This is often a cheap repair that needs to be done, as a bad MAF can reduce your MPGs by up to 25 percent.

If the check engine light comes on, don't delay getting the problem diagnosed. For check engine light diagnostics in Saratoga Springs, UT, visit the team at Car Doctors. We utilize the latest technology to conduct diagnostics and auto repairs for all makes and models. Give us a call at (801) 701-3518 to request an appointment for professional auto repair in Saratoga Springs today.


Car Doctors Blog

Written By Brian Corey

Published By MORBiZ




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