7 Reasons the Check Engine Light Illuminates
The illumination of the check engine light doesn't automatically mean that an automotive disaster is on the horizon. Still, you'll want to soon bring your vehicle to the shop for diagnostics. This way, you can make sure that the problem doesn't worsen to the extent that you end up needing major repairs that could've been prevented. Here's a look at seven problems that trigger the check engine light.
Bad Spark Plugs
Older vehicles should have their spark plugs replaced about every 30,000 miles. For vehicles that were manufactured after 2000, you can typically wait 100,000 miles before replacing plugs. Healthy spark plugs will help your vehicle attain optimal performance and gas mileage.
Failing Mass Airflow Sensor
Mass airflow sensors keep track of the quantity of incoming air and determine how much fuel should be injected with it.
Faulty Catalytic Convertor
For carbon monoxide to be turned into a less harmful emission, a healthy catalytic converter is needed. While this can be a rather expensive issue, it's an important one to address.
Bad Oxygen Sensor
Oxygen sensors monitor the amount of unburned oxygen that's present in the exhaust system. Oxygen sensor issues can lead to catalytic converter trouble.
Failing Battery/Charging System
When a battery is failing, it can cause low voltage at the computer, which can consequently trigger the check engine light.
Faulty Ignition Coil
Ignition coils play a pivotal role in creating the spark needed for engines to come roaring to life on all cylinders. Ignition coils sometimes fail because of extreme weather conditions.
Loose/Missing Gas Cap
While this might seem like a trivial issue, a poorly-fitting gas cap can lead to the evaporation of fuel before you get the chance to use it---and can actually trigger the check engine light.
If you need check engine light diagnostics and repair, be sure to get in touch with a reputable auto shop. For check engine light diagnostics and repair in Mountain View and Palo Alto, CA, contact the experts at The Car Doctor at (650) 492-6853. Feel free to give The Car Doctor a call today to schedule an appointment for any of your repair or maintenance needs!
The Car Doctor Blog
Posted: June 12, 2020
Written and Published By MORBiZ
Signs of Alternator Trouble that Mean You Should Visit Our Palo Alto Auto Shop
Signs of Engine Trouble that You Need to Know
Must-Know Signs of a Suspension Problem
Is there a problem with my car's cooling system?
What are common check engine light triggers?
Going on a road trip? Complete these maintenance tasks before you leave
Experienced Mechanic in Palo Alto, CA
Brake Failure: 7 Warning Signs
Why Is It Important to Always Follow Your Oil Change Schedule?
8 Easy Ways to Improve Fuel-Efficiency
How Come My Car Won't Start? Here Are 6 Possibilities
Top 7 Signs of Alternator Trouble
Common Signs of Serious Engine Trouble
Bad Driving Habits that Can Destroy Your Transmission
When to Suspect a Suspension Problem
Important Benefits of a Coolant Flush
7 Reasons the Check Engine Light Illuminates
Always Keep Current with these 6 Important Auto Maintenance Tasks
6 Warning Signs of Cooling System Failure
Recognizing Brake Trouble
6 Symptoms of a Transmission Problem
Expert Auto Repair in Palo Alto, CA
Stay Up to Date on these 6 Important Fluid Flushes
7 Ways to Boost MPGs
6 Signs that You Could Need Alternator Replacement
6 Problems that Can Prevent a Car from Starting
Top Signs of Suspension Trouble
Why is the Check Engine Light On?
Does This Mean it is Time for Auto Repair?
Great Traits of a Professional Auto Repair Shop in Palo Alto
The Sounds of Car Trouble
Top Signs of Big Trouble Under the Hood
The Best Ways to Maintain a Safe Car
Why does my vehicle need oil changes every 3,000 miles?
Is it Time for a Tune Up?
The Importance of Fleet Vehicle Maintenance
Is Your Car Up to Date with These Auto Maintenance Services?
Is it Time for Drive Belt Replacement?
What is Cooling System Service?
What Triggers the Check Engine Light?
Schedule Brake Repair as Part of Routine Auto Maintenance
Why Does My Car Need Scheduled Auto Maintenance?
Restore MPGs with Routine Auto Maintenance
Top Qualities of a Dealership Alternative
Could Your Vehicle Benefit from a Wheel Alignment
How to Tell if it is Time for Transmission Service
Is Time for Major Engine Repair?
What is a Fluid Flush?
Keeping Up with Scheduled Auto Services
What is Factory Auto Maintenance?
3 DIY Auto Maintenance Tips
Top 5 Reasons Your Car Won't Start
Creating of a Fleet Vehicle Preventative Maintenance Plan
Does this mean I need brake repair?
5 Times you Need to Visit an Auto Repair Shop
Are You Keeping Up with Oil Changes?
6 Tips for Raising Your Miles Per Gallon
Finding Top Notch Auto Repair Services
How do I know if I Need Suspension Repair?
Easy Tips to Extend the Life of Your Car
What is Scheduled Auto Maintenance?
How Important is Tire Pressure?
5 Signs of a Failing Ignition
3 Signs it is Time for Clutch Repair
Does my car need new tires? Here's how to tell!
What is Leaking from my Car?
The Major Benefits of Quality Replacement Auto Parts
Top 7 Auto Electric Problems
How can an Auto Repair Shop become a NAPA AutoCare Center?
5 Transmission Troubles that Require Repair
5 signs it's time to make an appointment for brake repair
What Causes a Car Battery to Die?
Hard Starting: Does my car need a new starter motor?
Does my Car need an Engine Rebuild?
Fuel Delivery Failure: Common Fuel System Repairs
How to find a great auto repair shop in Palo Alto
Common Reasons the AC isn't Cold
Pee-Yew! The Smells of Car Repair
Why do Vehicles have so Many Computers?
What Does Colored Exhaust Smoke Mean?
Does My Car Need an Alignment?
Bad Vibes: 3 Shakey Signs Your Car Needs Auto Repair
5 Signs of Alternator Failure
3 Symptoms of an Exhaust Leak
Why Does My Car Smell Funny?
Help! My Car Won't Start
3 Signs it's Time for Exhaust Repair
Why is My Car Loud?
4 Common Reasons the Check Engine Light Comes On
How to Save Gas and Money this Summer
Time For Brake Replacement? 6 Ways to Tell
6 Signs Your Car Needs Suspension Repair
Timing Belt Replacement
Understanding 30/60/90K Maintenance
4 Signs You Need Brake Service or Brake Repair
How Important are Regular Oil Changes?
Six Signs of Transmission Trouble
Preparing for Winter Driving