Why is the Check Engine Light Illuminated?

 

While many people fear the check engine light you should actually be thankful that it exists. The light is often warning you about a small problem that will be simple and relatively inexpensive to fix. It is important to bring your car to a local auto repair shop if the light comes on so that the mechanic can diagnose the issue with a special computer. Waiting too long can allow the problem to get worse and cause issues that will require much more costly repairs. These are 4 of the top reasons the check engine light may come on.

Failed Ignition Coil

If the ignition begins to struggle it will cause the check engine light to come on. The ignition coil produces the spark necessary to get your carís engine started and is subject to regular wear and tear over the years, but its life can be shortened drastically in vehicles that are constantly being turned on or off.

Faulty Mass Air Flow Sensor

This MAF sensor monitors incoming air and calculates how much of it needs to be mixed with the fuel to create the correct mixture for optimal vehicle operation. If it fails it can result in a rich fuel mixture and a drop of your fuel efficiency by up to 25 percent, so it is important to have it replaced. Sometimes it just needs to be cleaned!

Loose or Broken Gas Cap

A loose or broken gas cap can allow fuel to evaporate out of the filler hose. The light will be triggered when vehicle sensors pick up on this as it it will greatly drop your MPGs because youíre losing gas that you never got a chance to use. This is a cheap fix but a very necessary one.

Failing Catalytic Converter

The catalytic converter converts dangerous exhaust fumes from your car into less hazardous emissions. If a problem arises with this part the check engine light will come on and unfortunately, this is one of the more expensive repairs you may need to do. But if it is found that your catalytic converter has failed it was likely due to another, less expensive part that bit the dust first, which likely turned the light on much earlier. This is why it is important to have check engine light problems identified immediately.

Never wait to have the check engine light diagnosed when it comes on. If you need check engine light diagnostics in Tacoma for your BMW, Mini, Mercedes or other European vehicle bring it to Autobahn Specialists Inc. Our talented team of European auto repair technicians will quickly identify and fix issues that your car is having, getting you back on the road quickly! Call us at (253) 235-0904 to schedule an appointment for European auto repair in Tacoma today!


Autobahn Specialists Inc. Blog

Written By Brian Corey

Published By MORBiZ



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