Learn the Top 5 Reasons Your Check Engine Light May Be On

The check engine light on your vehicle dashboard can indicate a scheduled maintenance requirement, or in some cases, it might be a service warning light. However, more frequently, this alert highlights a problem with certain key vehicle components that might need your instant attention to avoid more severe damage, safety compromise, and higher cost of repair. At the Subaru Sherman Oaks service center, you can explore the scheduled service for Subaru-certified maintenance or get the Subaru check engine light service in Los Angeles, CA, to find out why your check engine light may be on and get it fixed. However, if you are alone or far away on those long highway trips, it is best to know what it means when you check engine light is on. Below are five major reasons why your check engine light may be on. 

• Gas Cap

Before panicking about the check engine light, inspect your gas cap. A loose or damaged cap can trigger the alert, as it disrupts the necessary vacuum seal. Ensure your cap is tightened securely; if damaged, replace it. Cracks or broken seals can also activate the warning, and you might need to engage the service of a Subaru certified mechanic to get it fixed. 

• Spark Plugs and Other Electrical Issues 

A malfunctioning ignition system, including worn spark plugs and plug wires, will often activate the check engine warning. If your vehicle has high mileage that is over 100,000 miles and hasn't had spark plug replacements, it's probably time for an upgrade. Similarly, Problems with vital electrical systems, like the battery or alternator, can cause the check engine light to come on, requiring prompt attention. 

• Fault with the Oxygen Sensor 

The oxygen sensor is crucial in optimizing your car's fuel efficiency and minimizing emissions by monitoring unburned oxygen in the exhaust system. It is also responsible for ensuring the perfect fuel-to-oxygen balance. However, a malfunctioning sensor can trigger the check engine light, decrease gas mileage, and increase harmful emissions. Prompt replacement or repair (depending on the severity of the fault) is vital to prevent engine damage and reduce environmental impact.

• Faulty Catalytic Converter 

Your car's catalytic converter plays a vital role in minimizing harmful emissions. A malfunctioning catalytic converter can have serious consequences, including decreased engine power and increased toxic emissions. Failure of this converter to function properly can trigger the check engine light to come on. It would be best if you also watched out for warning signs like sluggish acceleration or unusual exhaust odors.

• Low Fluid Levels 

Engine performance relies heavily on proper fluid levels. Low levels of various essential engine fluids such as top-off oil, transmission fluid, and coolant can result in the check engine light coming on. They can subject the entire engine to potentially serious damage. It is best to 

prioritize fluid maintenance to safeguard your engine's health and minimize future repair costs. 

Conclusion 

Check engine light coming on; it is best taken as a serious warning sign to avoid major damage or compromise your safety. Are you looking for a quality Subaru Service near me or an in-stock Subaru model for sale near me? It is best to visit the Subaru Sherman Oaks service center in Los Angeles, CA, for Subaru-certified maintenance with Subaru-certified mechanics and find various Subaru models for sale.