4 Common Reasons the Check Engine Light Comes On

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4 Common Reasons the Check Engine Light Comes On


The Car Doctors Tire Pros Blog

4 Common Reasons the Check Engine Light Comes OnFor many car owners the check engine light all too often conjures up fear of big repair bills and labor intensive service to their automobile. Fortunately, this most often is not the case. The check engine light will turn on for a variety of reasons, but most are simple fixes. There are a few that indicate large repairs are necessary, but this usually won't be the case as long as your get to the shop soon after the light comes on. Here are 4 common reasons the check engine light will illuminate.

Failed Catalytic Converter

The catalytic converter is tasked with converting dangerous exhaust fumes into less harmful emissions that are directed out the tailpipe. If a problem arises with this part the check engine light will illuminate and unfortunately this is one of the most expensive repairs you may ever need to do conduct a vehicle. However, catalytic converter failure can generally be attributed to some other part, such as the oxygen sensor, that failed first. This would have triggered the check engine light initially. This is why it is very important to get to the auto repair shop right away when the light comes on.

Failed Ignition Coil

The ignition creates the electrical pathway necessary to get your car's engine going. If sensors detect that the pathway is not allowing the right amount of current to flow through then the light will be turned illuminated.

Malfunctioning Mass Air Flow Sensor

The MAF sensor detects incoming air and calculates how much needs to be mixed with the gasoline in order to make sure your vehicle runs properly. If it is unable to do so because it has become dirty, corroded or otherwise malfunctions the light will come one. This is important to have repaired as a bad MAF sensor can drop your MPGs by as much as 25 percent!

Cracked or Loose Gas Cap

When the check engine light comes on the best case scenario is that you did not tighten the gas cap the last time you filled up. If gas fumes evaporate out of the filler hose because of a loose, cracked or broken gas cap the light will illuminate. This is good for you because you're losing gas you didn't even get a chance to use!

When the check engine light comes on be sure to seek a mechanic to have the problem check out. For check engine light diagnostics in Saratoga Springs you will want to visit the ASE certified technicians at The Car Doctors Tire Pros. We conduct superior auto repair services for all makes and models and have a huge selections of new tires for sale from top brands. To learn more or to request expert auto repair in Saratoga Springs stop by today or give us a call at (801) 701-3518.


The Car Doctors Tire Pros Blog

Written By Brian Corey

Published By MORBiZ