Everybody’s Auto Service Blog
4 Common Check Engine Light Problems that Every Driver Should Know
While the check engine light doesn’t always indicate a serious emergency, it is your vehicle’s way of alerting you that something is not working as it should. Ignoring the warning can lead to reduced performance, poor fuel-efficiency, and costlier repairs over time. At Everybody's Auto Service, we provide expert check engine light diagnostics and repair in the greater North Seattle area. Here are four common check engine light triggers that should be addressed ASAP.
Failing Oxygen Sensor
Oxygen sensors measure how much oxygen is present in the exhaust and help regulate the air-fuel mixture in the engine. When an oxygen sensor fails, the engine may burn too much fuel, reducing efficiency and increasing emissions. A faulty sensor can also lead to catalytic converter damage if left unaddressed. Replacing a failing oxygen sensor helps restore performance and fuel-economy.
Worn or Faulty Spark Plugs and Ignition Coils
Spark plugs and ignition coils play a crucial role in igniting the air-fuel mixture inside the engine. When these components wear out or fail, the engine may misfire, idle roughly, or struggle to accelerate. Misfires commonly trigger the check engine light. Routine maintenance helps prevent these issues from developing.
Mass Air Flow Sensor Problems
The mass air flow sensor measures how much air enters the engine and helps determine the correct amount of fuel to inject. When this sensor becomes dirty or fails, it can disrupt engine performance and cause poor fuel-economy. Symptoms often include hesitation, stalling, or difficulty starting. Addressing mass air flow sensor issues early can help keep the engine running smoothly.
Catalytic Converter Issues
The catalytic converter reduces harmful emissions by converting exhaust gases into less harmful substances. A failing catalytic converter can cause reduced performance, decreased fuel-efficiency, and higher emissions. With a faulty catalytic converter, you might also notice a smell similar to rotten eggs.
Check Engine Light Repair in Shoreline, WA
For expert
auto repair in North Seattle and the surrounding area, contact Everybody’s Auto Service at
206-201-1373. Feel free to give us a call to make an appointment!














