Why is the Check Engine Light On?
For many drivers the check is light is often seen as a major nuisance. This is quite unfortunate as it is really informing you about what is likely a small problem. Well, a small problem if you get it fixed right away. As soon as the light comes on be sure to visit a local auto repair shop so that proper diagnostics can be ran. There are literally hundreds of things that can trigger this little light, so guessing what may be causing it is quite impossible. The following are some of the most common issues that will cause the light to come on.
Failed MAF sensor
The mass air flow sensor monitors incoming air and calculates how much of it needs to be mixed with the gasoline to create the proper air and fuel mixture. If the sensor malfunctions it can cause a huge decrease in fuel efficiency or cause the motor to run poorly.
Bad O2 Sensor
On the other end of the car is the oxygen sensor, located in the exhaust system. This monitors how much oxygen is in the exhaust to also help create the proper air and fuel mixture. If this sensor malfunctions and is not fixed in a timely manner it could result in a fail catalytic converter, which is one of the most expensive parts to repair on a vehicle.
Malfunctioning Catalytic Converter
The catalytic convert converts hazardous exhaust fumes into less harmful emissions. It will not fail unless something else goes awry, such as a failed oxygen sensor that is not taken care of. This is why it is very crucial to have diagnostics ran as soon as the light comes on!
Cracked or Loose Gas Cap
The best case scenario is that you simply forgot to tighten the gas cap after filling up. This will trigger the light because the EVAP system will detect gasoline vapors as the evaporate up the filler hose.
Bad Spark Plugs
If the spark plugs are not firing properly the check engine light will come on. Spark plugs may become dirty or corroded which can cause the engine to run poorly.
It is necessary to note that it isn't just engine problems that can cause the check engine light to come on. Low levels of transmission fluid could also cause this light to turn on.
As soon as you notice your check engine light do not hesitate to head to the auto shop. For check engine light diagnostics in Houston come see the team at A1 American Transmission & Automotive. We offer complete car care for your import or domestic vehicle, specializing in transmission repair and maintenance. Give A1 American a call at (281) 954-3756 to schedule your next auto repair service in Houston. Don't forget to check out our special offers!
A1 American Transmission Blog
Written and Published By MORBiZ
Common Questions about Automotive Transmissions
6 Symptoms of Clutch Trouble
Transmission Specialist in Houston, TX
Helpful Tips for Keeping Your Automatic Transmission in Excellent Condition
Why choose a manual transmission?
7 Important Parts of an Automatic Transmission
How to Ruin Your Transmission
Signs that You Should Get a Transmission Flush
Do I need a transmission rebuild?
Common Indications of Brake Trouble
The Importance of the Oil Change
Car Problems Detected by Odor
What is Your Check Engine Light Telling You?
6 Common Signs it is time for Transmission Service
Does My Car Have an Exhaust Leak?
What are the main parts of the cooling system?
4 Common No Start Issues Requiring Auto Repair
Top Signs of Engine Trouble
Car Problems Diagnosed by Sound
Common Automotive Fluid Leaks
Common Signs of Trouble with Manual Transmissions
What is Scheduled Auto Maintenance?
Top Signs of General Automotive Trouble
Auto Maintenance Tips to Restore MPGs
4 Auto Electric Problems You Should Know
Customer Reviews of A1 American Transmission & Automotive
Top Signs it is Time for Transmission Service
Top Signs Your Car Needs Brake Repair
4 Signs of Cooling System Failure
4 Symptoms of Failing Suspension
4 Common Signs it's Time for Engine Repair
How can I Tell if I Need Manual Transmission Repair
Does My Car Really Need Oil Changes?
6 reasons the check engine light might be on
Why is My Car's Exhaust Colored?
How to Jumpstart a Dead Battery
Keeping up with Factory Auto Maintenance
Easy Tips for a Healthier Running Car
10 Tips for a Healthier Car
Top Causes of No Start Issues
Top Signs of Automatic Transmission Trouble
Does my Car Need Radiator Repair?
Simple Auto Maintenance that Resolves Poor Engine Performance
If this happens head to the shop for brake repair
How to Identify a Great Transmission Repair Shop
Why are Oil Changes so Important for My Car?
5 Traits of a Great Transmission Repair Shop in Houston
What does Routine Transmission Service Include?
Common Electrical Problems in Cars
Auto Maintenance for Better MPGs
Classic Car Maintenance Tips to Keep it Running & Looking Great
Top Causes of Transmission Problems
How to Tell it is Time for Exhaust Repair
Why is the Check Engine Light On?
Is it time for Cooling System Repair?
What is scheduled auto maintenance and why is it so important?
Top Services of an Expert Transmission Repair Shop
6 Signs it Might be Time for Transmission Repair
6 Signs of Cooling System Failure
Does My Car Need Brake Repair?
What will happen if I don't have routine transmission maintenance completed?
Why is Transmission Maintenance Necessary?
How do I Know if my Car Needs Automatic Transmission Repair?
Top Qualities of an Expert Transmission Repair Shop
Time for Brake Repair? These Symptoms Mean Yes
Is it Time for Major Engine Repair?
Important Reasons to Never Skip an Oil Change
Serious Signs your Car may Need a Transmission Rebuild
4 Common Transmission Services that Keep it Working Great
What is Routine Transmission Service
Driving Habits that will Damage the Transmission
What Problems can Low ATF Cause?
3 Signs it's Time for Clutch Service
5 Symptoms of a Failing Transmission