6 reasons the check engine light might be on
Did you know that there are many, many reasons the check engine light could come on? Depending on your vehicle's sensory system, there could be 100 or more reasons that little and often confusing light comes on. For many people the light is a message that is dooming their car or truck to the crusher, but in reality it likely just means that a sensor needs to simply be cleaned or replaced. Since many problems are so small it is very important to get to a shop as soon as this light turns on to get the problem resolved before it turns into a bigger issue, as demonstrated by this first check engine light problem.
Failed Catalytic Converter
If it is found that the catalytic converter has failed during a check engine light diagnostics test you're in for an expensive repair. This is one of the most highly priced parts on any car, but it won't fail unless something much small malfunctions first, which would have trigger the light long ago. So while you could have been paying to have a sensor replaced you're now looking at an extensive and expensive repair because you waited to have diagnostics completed.
Faulty MAF Sensor
The mass airflow sensor measures incoming air and determines how much of it needs to be mixed with gasoline in order to create a proper running engine. If the sensor malfunctions it could result in a vehicle running rich, triggering the check engine light.
Malfunctioning O2 Sensor
The oxygen sensor is located in the exhaust system and takes note of how much oxygen is in the exhaust fumes. This too helps dictate the air and fuel mixture and if it can do its job correctly your vehicle will likely run very rough.
Misfiring Spark Plugs
The spark plugs are fed an electrical charge that ignites the air and fuel mixture. If they fire erratically or not on time the check engine light will come on.
There are a few transmission issues that can trigger the light, one of the most common reasons being low levels of transmission fluid.
Loose Gas Cap
The best you can hope for if your check engine light comes on is a loose gas cap. Make sure to always tighten the cap after filling up so fuel vapors can't evaporate out of the filler tube, thus triggering the light.
If you need check engine light diagnostics in Houston be sure to visit A1 American Transmissions & Automotive. We love being able to help our friends and neighbors keep their vehicles running great by offering high quality auto repair for all makes and models. To schedule professional auto repair in Houston give us a call at (281) 954-3756!
A1 American Transmission Blog
Written and Published By MORBiZ
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