What is triggering my check engine light?


When the check engine light turns on, it doesn't necessarily indicate that your engine is about to fail. Nonetheless, you'll want to visit the shop so that diagnostics can be conducted and the issue can be pinpointed. By being proactive about solving the problem, there's a much better chance that it can be addressed before it escalates and requires very expensive engine repairs. At Austin Auto Repair, our local mechanics use advanced diagnostic technology to accurately identify engine problems when the check engine light turns on. No matter the problem that is triggering the light, we'll work efficiently to fix it and get your car back to you as quickly as possible.

Common Check Engine Light Triggers

One common issue that triggers the check engine light is a faulty catalytic converter. It's important that your catalytic converter is healthy so that your car's polluting emissions are kept to a minimum. Indications of catalytic converter trouble include dark exhaust smoke, worsening gas mileage, and a sulphurous odor. Oxygen sensor trouble can also trigger the check engine light, and potentially cause issues with your catalytic converter. Another reason the check engine light could come on is that you have a failing mass air flow sensor. A bad MAF sensor can cause herky-jerky acceleration, and may cause your engine to stall shortly after you fire it up.

A bad ignition coil is another issue that could cause the check engine light to come on. It's important that your ignition coils are healthy so that the spark is generated that your engine needs to get started. Ignition coils should work reliably for around 100,000 miles. Faulty spark plugs are a similar problem that can cause the check engine light to illuminate. Also, a bad battery can cause low voltage at the computer, which can consequently cause the check engine light to come on. And though it might seem bizarre, your check engine light might turn on if your gas cap is loose or missing.

Check Engine Light Repair in Austin, TX

When you need check engine light diagnostics and repair, don't hesitate to give Austin Auto Repair a call at (512) 865-6217 to schedule an appointment. Our mechanics can provide you with an accurate diagnosis and then immediately get to work on remedying the problem. At Austin Auto Repair, we're happy to help you with any of your vehicle's repair or maintenance needs!


Austin Auto Repair Blog
Posted: June 13, 2021

Written and Published By MORBiZ



Simple Ways to Avoid Major Transmission Trouble
Visit Our Austin Auto Shop if You Notice One of these Signs of Brake Failure
Symptoms of Alternator Trouble We Can Fix at Our Austin, TX Auto Shop
Common Symptoms of a Transmission Problem We Can Fix at Our Austin Auto Shop
Recent Customer Reviews for Austin Auto Repair
Signs of Cooling System We Can Fix at Our Austin, TX Auto Shop
Warning Signs of Suspension Trouble We Can Fix at Our Austin, TX Auto Shop
4 Easy Ways to Prevent Major Engine Problems
Helpful Tips for Boosting MPGs
How Following Your Oil Change Schedule Keeps Your Engine Healthy
Common Symptoms of Engine Failure We Can Fix at Our Austin, TX Auto Shop
Important Types of Maintenance for a Healthy Engine
Road Trip Maintenance Tasks that We Can Complete at Our Austin Auto Shop
Why can't I get my engine to fire up?
Are my brakes going bad? Visit Our Austin Auto Shop for an Inspection!
Signs of Alternator Failure that Mean You Should Visit Our Austin, TX Auto Shop
Warning Signs of Transmission Trouble that We Can Fix at Our Austin Auto Shop
Must-Know Signs of Suspension Trouble
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