During my free car diagnostic test, I was told that there are many reasons for the popping of check engine lights. This particular light is considered to be a significant part of your vehicle’s onboard diagnostic system. The vehicle’s computer will issue the warning whenever it traces an issue with the powertrain such as transmission, engine, and related components that may enhance tailpipe emissions.
Say, a dysfunctional gas cap, can let fuel vapors escape into the atmosphere, and stimulate the light. Similarly, an issue with an internal engine can lead to a misfire, causing hydrocarbon emissions. It may turn on the light too. Remember each car is different in terms of the manufacturing year, make, and model.
So, there’s no specific conclusion why your check engine light is illuminated without any diagnostics. Let us find out a few of the commonest reasons that your check engine light might be on.
1. Snag in Engine
There is no doubt that engine problems can stimulate light. A control module observes engine operation through a compilation of sensors. Somehow, if it identifies an issue, it switches on the check engine light.
2. Transmission Issues
During a free check engine light diagnostic, I found that a vehicle’s transmission regulates engine power and conveys it to the drive wheels. As the two assemblies collaborate so closely, any challenge with the transmission may enhance tailpipe emissions too. So, when the control module identifies any trouble with the transmission, it will switch on the check engine light.
3. Troubles with Emissions Equipment
Contemporary vehicles feature a wide range of emissions equipment onboard. The list could be endless. Each piece of the puzzle has been developed to reduce tailpipe emissions. It protects the environment and the world becomes a safer place for living. The bottom line is that the malfunctioning of emissions equipment can simply be put on the check engine light.
4. Problems with Modules and Sensors
A plethora of sensors and modules regulate contemporary powertrains. Additionally, the modules interact with each other over a large data network. Problems with modules, sensors, networks, and wiring can stimulate the check engine light.
5. Challenges Regarding Air/Fuel Delivery
The car’s engine requires an accurate quantity of both air and fuel for functioning properly. If it becomes either too much or too little of each other, the control module will probably observe. Then the device switches on the check engine light.
6. Ignition System Fails
The ignition system comprises the coil packs, spark plugs, and everything else required for igniting the air/fuel mixture within the engine. The control module maintains a track of the ignition system operation. The check engine light will be activated once it identifies an issue.
Steps To Fix
Probably, the check engine light appears to be jargon for you till the time your car is diagnosed by a professional. The warning may seem to be simple and harmless. But it could also be something serious that may lead to further damage to your car. When your engine light switches on, you may attempt to tighten the gas cap. Do not ignore the fact that a check engine light can turn on due to a loose gas cap. That’s why tightening the cap so firmly may act as a potential troubleshooter. If the light turns off, then there’s isn’t any immediate requirement to get your car serviced. However, if the light is still on, it could be a symptom of an acute problem with your car.
Better not to take any chances. If your check engine light is on, search for a professional car check engine light repair in California for diagnosing and repairing the issue upfront.
Why you Need a Professional Service Instead of DIY
It may be challenging to realize what a check engine light means by yourself. Whereas, a professional mechanic owns the tools and equipment to find it out.
If the check engine light comes on, your vehicle’s computer, mostly known as a control module, will save a relative diagnostic trouble code (DTC) in its memory. Only a professional mechanic is eligible and qualified to connect a scan tool or code reader to your vehicle’s OBD port, which is mostly situated in the steering column, for retrieving this diagnostic code.
This code won’t communicate to your mechanic the specific reason why your check engine light is turned on. Rather, your mechanic will apply the code as a starting point for more troubleshooting and perform extra diagnostic tests to ascertain the problem.
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