Check Engine Light

Yellow engine-shaped warning light illuminated on a dark dashboard.

Don’t Ignore the Check Engine Light — We’ll Diagnose It Fast

Your dashboard’s  check engine light  is more than just a warning — it’s your car’s way of saying, “Something’s wrong.” And the longer you ignore it, the more serious (and expensive) the problem can become.


At Stone Automotive, we use industry-leading diagnostic tools to quickly identify OBD-II codes  and pinpoint the source of the issue. Whether it’s a minor sensor or a more serious engine malfunction, we’ll handle the repair and get you back on the road with confidence.

What Does the Check Engine Light Mean?

Also known as the   malfunction indicator lamp (MIL)  or   engine warning light, the check engine light activates when your vehicle’s onboard diagnostics system detects a problem. This can range from a loose gas cap to a misfiring engine or even transmission trouble.


When this light appears, your vehicle stores a   diagnostic trouble code (DTC)  that can only be accessed using specialized equipment. That’s where our technicians come in — we retrieve the code, interpret the issue, and provide clear repair options.


Common Causes of a Check Engine Light

Several systems can trigger your   engine fault light. Here are a few of the most common culprits:


⚠️   Loose or Damaged Gas Cap
Often overlooked, a loose gas cap can cause fuel vapor leaks, which your car interprets as an emissions problem.


⚠️   Faulty Sensors
  Oxygen sensors,   mass airflow sensors, and  crankshaft position sensors  are critical to engine performance. If one fails, your light will come on.


⚠️   Engine Misfire
A failing spark plug or ignition coil can disrupt the air-fuel mixture, leading to misfires and rough idling.


⚠️   Emissions System Problems
A bad   catalytic converter  or faulty   EVAP system  can raise emissions and trigger your  engine malfunction indicator.


⚠️   Transmission Issues
Even non-engine problems like a faulty   solenoid  or   fluid temperature sensor  in your transmission can cause a check engine warning.


Whatever the cause, our team at {Client} will diagnose the problem accurately using professional-grade   engine diagnostic tools.


Why You Should Never Ignore the Engine Warning Light

Even if your vehicle seems to be driving normally, ignoring the   service engine soon light  can result in:


❌   Increased repair costs  from overlooked damage
❌   Lower fuel efficiency  and wasted fuel
❌   Catalytic converter failure  — an expensive repair
❌   Failed emissions testing  during inspections
❌   Potential safety issues  involving related systems


The sooner we identify and clear the   engine error codes, the better the outcome — for your car, your wallet, and your peace of mind.


Our Check Engine Light Services Include:

  • Full   OBD-II code retrieval  and diagnostics
  • Sensor and component inspection
  • Engine and emissions system evaluation
  • Transmission diagnostics (if related)
  • Recommended repairs with upfront estimates
  • Code clearing once repairs are completed


Our technicians are trained in both   basic and advanced engine fault diagnostics, so no matter the issue, we’ll help you make the right call.


Trust Stone Automotive for Fast, Accurate Engine Diagnostics

The check engine light isn’t just an inconvenience — it’s a call to action. Don’t wait until a simple fix turns into a major repair.


📍 Visit us at 191 East Ave, Winfield, MO 63389
📞 Call us at  (636) 566-6104  to speak with one of our engine experts
💻 Schedule your diagnostic appointment online today for peace of mind on the road