Common Reasons a Check Engine Light Turns On

 

While the illumination of the check engine light doesn't automatically mean that a disaster is looming, it's still best to be proactive about getting to the shop for diagnostics. In doing so, you'll help to make sure that you don't end up spending an exorbitant sum on a problem that could have been nipped in the bud. Here's a look at six common causes of a check engine light coming on.

Failing Ignition Coil

Ignition coils are critical to generating the spark needed to get your engine fully fired up. Sometimes they'll go haywire due to extreme weather conditions.

Bad Battery or Charging System

A faulty battery can result in low voltage at the computer, which can then trigger your check engine light.

Faulty Mass Air Flow Sensor

The mass air flow sensor tracks the quantity of incoming air and calculates the amount of fuel to inject with it.

Failing Catalytic Converter

This is a rather costly issue to take care of, but is one that needs to be addressed. The catalytic converter has an important job, which is to turn carbon monoxide into an emission that is less environmentally harmful.

Faulty Oxygen Sensor

Oxygen sensors keep tabs on the amount of unburned oxygen that is present in your exhaust system. When there are issues with an oxygen sensor, you could see a decrease in fuel-efficiency, as well as problems with your catalytic converter.

Poorly-Fitting Gas Cap

If your gas cap is missing or ill-fitting, then fuel could evaporate before you get the opportunity to put it use---and your check engine light might even turn on.

If you're in need of check engine light diagnostics and repair, be sure to get in touch with a reputable mechanic. For check engine light diagnostics and engine repair in Portland, OR, the experts to contact are at A-1 Automotive at (503) 616-5479. A-1 also specializes in Prius and hybrid repair in Portland. Feel free to give A-1 Automotive a call today to schedule an appointment for any of your repair or maintenance needs!


Kory's Blog

Written and Published By MORBiZ



8 Tips for Boosting MPGs
Make Sure Your Vehicle Stays Current on These 6 Fluid Flushes
Common Reasons a Check Engine Light Turns On
5 Important Summertime Maintenance Tasks
How to Know if There's an Issue with Your Cooling System
Brake Trouble: 6 Symptoms
Is my transmission failing?
BG Fuel and Induction Service: Boost Performance and Extend the Life of Your Engine
Warning Signs of Suspension Trouble
BG Automotive Maintenance Services and Products
How to Know if Your Alternator Is Failing
Don't skip these 6 important winter maintenance tasks!
5 Issues that Could Prevent Your Car from Starting
Expert Transmission Service in Portland, OR
5 Requirements for an Auto Shop to Be AAA-Certified
6 Simple Ways to Increase Your Gas Mileage
Keep Your Vehicle Up to Date on these 5 Types of Fluid Flushes
Planning a road trip? Here are six maintenance tasks before heading out!
How to know if you need engine repair
Expert Auto Repair in Southeast Portland, OR
What Is Triggering My Check Engine Light?
6 Signs of a Transmission Issue
How to know if you need brake repair
Make an appointment for these six winter maintenance tasks in Portland, OR!
Top Signs of Alternator Failure
5 Signs of a Cooling System Problem
Do I need new shocks or struts?
5 Tips on How to Improve Your MPGs
6 Maintenance Services Provided by a Reputable Mechanic in Portland, OR
5 Helpful Maintenance Tips to Prepare Your Car for Winter
4 Types of Repair Offered by the Best Mechanic in Portland
6 Services Provided by a Reputable Portland Mechanic
Which kind of fluid is leaking from my vehicle?
5 Signs That it's Time to Get a Tune-Up
5 Red Flags that Could Mean You Need a New Fuel Filter
3 Signs of a Transmission Problem
4 Important Reasons to Conduct Oil Changes on TIme
How to Winterize your Car
What does the Suspension Do & Why Should I Repair It?
4 Signs of Brake Failure You Need to Know
How to Improve Gas Mileage this Summer
3 Signs you may need an Engine Rebuild
5 Common Causes the Check Engine Light Comes On