Get Fast, Accurate Diagnostics from ASE-Certified Technicians
When your check engine light comes on, it’s your car’s way of telling you something is wrong. At Mechanic Auto Shop in San Antonio, TX, we provide advanced diagnostics and expert repairs to pinpoint and fix the issue quickly. Our ASE-Certified Technicians work on all makes and models, including Ford, Chevrolet, Honda, Toyota, BMW, and Mercedes.
Ignoring a check engine light could lead to serious damage and costly repairs. Let us diagnose the problem accurately and get you back on the road with confidence.
Scanning for trouble codes in the engine control module.
Checking fuel, air, and ignition systems for efficiency.
Ensuring proper fuel efficiency and emissions control.
Detecting clogs or fuel delivery issues.
Evaluating spark plugs, coils, and timing components.
Preventing overheating and engine damage.
🔋 Loose or Faulty Gas Cap – A simple fix, but it can trigger the light.
🔄 Oxygen Sensor Failure – Can reduce fuel efficiency and increase emissions.
⚙️ Bad Spark Plugs or Ignition Coils – Causes misfiring and poor acceleration.
🌡️ Catalytic Converter Issues – A costly repair that affects emissions and performance.
🛢️ Mass Airflow Sensor Problems – Reduces fuel economy and power.
🚗 EGR Valve or Fuel Injector Problems – Affects fuel combustion and performance.
🚦 Steady Check Engine Light: Schedule a diagnostic as soon as possible to prevent further issues.
⚠️ Flashing Check Engine Light: Pull over immediately—this signals a severe issue that could damage your engine.
Don’t let a check engine light slow you down. Visit Mechanic Auto Shop, San Antonio’s trusted auto repair experts, for fast and accurate diagnostics.