Why is my check engine light illuminating?


Why is my check engine light illuminating?When the check engine light turns on, it doesn't automatically mean that you're on the verge of an automotive disaster. However, you'll still want to be proactive about getting to the shop for diagnostics. Otherwise, you could find yourself with very expensive repairs that could've been nipped in the bud. Here's a look at six common reasons that a check engine light turns on.

Faulty Mass Air Flow Sensor

Your mass air flow sensor monitors incoming air and determines how much fuel to inject with it. If this is what's triggering your check engine light, you'll be fortunate in that it shouldn't cost too much to address.

Failing Catalytic Converter

A failing cat, on the other hand, can cost you a decent chunk of change. Still, it'll need to be taken care of because of the catalytic converter's important task, which is to turn carbon monoxide into an emission that isn't as harmful to the environment.

Bad Oxygen Sensor

This keeps tabs on the amount of unburned oxygen in the exhaust system. When problems arise with an oxygen sensor, you could consequently see drop in gas mileage, as well as issues with your catalytic converter.

Faulty Ignition Coil

Ignition coils play a crucial role in creating the spark needed for engines to come roaring to life on all cylinders. They are prone to failure due to weather extremes.

Poorly-Fitting Gas Cap

It might seem strange, but when a gas cap isn't properly sealed, the check engine light could be triggered, while gas evaporates before you get the opportunity to use it.

Bad Battery or Charging System

A failing battery can lead to low voltage at the computer, which can then trigger the check engine light.

If you're in need of auto repair, be sure to visit a reputable mechanic. For check engine light diagnostics & repair in Lost Creek, Dripping Springs, and Austin, TX, the experts to contact are at Austin Auto Repair at (512) 865-6217. Feel free to give Austin Auto Repair a call today to schedule an appointment for any of your repair or maintenance needs!


Austin Auto Repair Blog

Written and Published By MORBiZ



Signs that Your Vehicle Could Benefit from a Transmission Fluid Flush
What are easy ways to improve fuel-efficiency?
What is triggering my check engine light?
7 Symptoms of an Engine Problem
6 Benefits of an Oil Change
Important Auto Maintenance Tasks for Spring
7 Must-Know Signs of Brake Failure
Why Won't My Car Start? Here Are 7 Possibilities
7 Signs that Your Alternator Is Bad
Important Auto Maintenance Tasks that Shouldn't Be Skipped
Is my suspension showing signs of failure?
7 Tips for Improving Fuel-Efficiency
When is it time to get a transmission flush?
Top Benefits of Getting a Coolant Flush
Expert Brake Repair in Austin, TX
6 Indications of a Major Engine Problem
Expert Auto Repair in Austin, TX
Checklist: Spring Auto Maintenance
Why is my check engine light illuminating?
6 Signs that Your Brakes Are Failing
6 Common Issues that Prevent Cars from Starting
How to Identify a Failing Alternator
How to Identify a Failing Alternator
Keep Up on these 6 Fluid Flushes to Help Keep Your Car Running Smoothly!
How to Tell When You Need Transmission Repair
Easy Ways to Boost Your MPGs
Suspension Trouble: 6 Symptoms
Small Parts with Big Jobs
Keeping Up With Scheduled Auto Maintenance
Top Fuel System Delivery Problems
Common Signs of a Trouble Under the Hood
Top Safety Concern: Brake Trouble
Customer Reviews of Austin Auto Repair in Austin, Texas
Performance Boosting Auto Maintenance
Is it Time for Cooling System Repair?
Common Causes of No Starts
Do I need to Replace the Alternator?
Trouble Ahead: 4 Signs of Starter Motor Failure
Expert Auto Repair in Austin
Common Symptoms of an Exhaust Leak
3 Signs it is Time for a Wheel Alignment
The Importance of Scheduled Auto Maintenance
Top 5 Signs of Automatic Transmission Trouble
Common Triggers of the Check Engine Light
Top Signs it is Time for Engine Repair
4 signs your vehicle needs suspension repair
Dead Battery & 3 Other Shocking Auto Electrical Problems
5 Signs it's Time for Radiator Repair
Top 5 Signs Your Car Needs Brake Repair Now
Auto Maintenance & Driving Tips to Boost MPGs