Top 7 Reasons Your Check Engine Light Might Be On
Introduction
Few things cause more anxiety than the glowing Check Engine Light on your dashboard. Sometimes it’s minor, but sometimes it’s a serious problem. Either way, don’t ignore it. Here are the top 7 reasons your check engine light might be on.
Loose or Damaged Gas Cap
A simple gas cap issue can trigger the light. It affects fuel pressure and emissions.
Faulty Oxygen Sensor
This sensor monitors exhaust gases. A bad one reduces fuel economy and can damage the catalytic converter.
Catalytic Converter Issues
Essential for emissions control, a failing catalytic converter leads to poor performance and failed inspections.
Bad Spark Plugs or Wires
These are crucial for ignition. If they fail, your car may misfire, run rough, or stall.
Mass Airflow Sensor Malfunction
This sensor controls how much air enters the engine. Problems here lead to poor fuel economy and stalling.
Transmission Problems
A faulty transmission can also trigger the light, as it affects engine performance.
Electrical or Wiring Issues
Loose connections, bad batteries, or corroded wiring can confuse sensors and cause warning lights.
Conclusion
A check engine light doesn’t always mean panic, but it should never be ignored. At Golden Wrench, we use advanced diagnostic equipment to find the problem quickly and recommend the right repair.