Common Triggers of the Check Engine Light


Common Triggers of the Check Engine LightThere are many ways to tell if your vehicle is suffering from operational troubles, such as sounds, smells or vibrations. But many problems are so minute when they begin, they offer no physical or tangible clue of their existence other than minor performance drops. However, these problems will grow worse if they are left untreated. Thankfully, our cars don't let them go undetected. As soon as the check engine light comes on be sure to visit you local auto shop for proper diagnostics.

Malfunctioning Catalytic Converter

The catalytic converter converts hazardous exhaust fumes into less harmful emissions before they are emitted out of the tailpipe. This part uses rare metals and is expensive to replace should it fail, but it won't break unless another, smaller problem occurs first, which would allow for excess fuel to pass through and damage it. The initial problem would have illuminated the check engine light long before the failure of the catalytic converter, but having failed to get the issue diagnosed, it grew worse, resulting in a need for an expensive repair.

Exhaust Leak

An exhaust leak will alter readings being taken by the Oxygen Sensor, which can cause your vehicle to run rich and create a major increase in hazardous emissions fumes. If the sensor does not obtain proper readings of the amount of oxygen in the exhaust the check engine light will be come on.

Failed MAF Sensor

The MAF (Mass Air Flow) sensor measures the air that flows into the air intake and calculates how much of it needs to be mixed with the gasoline in order to create a proper running motor. If the MAF fails these calculations will be thrown off which results in the engine running rich, meaning it is using too much fuel. This issue not only decreases MPGs but it can cause numerous other problems for your vehicle's engine as well.

Broken Gas Cap

The best news that you get get in regard to a check engine light diagnosis is that it was caused by a loose or broken gas cap. A loose, cracked or otherwise damaged gas cap can allow fuel vapors to evaporate out of the filler hose, triggering the check engine light!

When the light comes on head to the auto repair shop right away to prevent the problem from growing worse. If you need check engine light diagnostics in Austin bring your car to Austin Auto Repair. We service all makes and models. To schedule professional auto repair in Austin give us a call at (512) 865-6217 today.


Austin Auto Repair Blog

Written and Published By MORBiZ



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