Check Engine Light Diagnostics in Rockville, MD

Find Out What’s Behind the Warning Light

A check engine light could signal anything from a minor sensor glitch to a major mechanical problem. At A Plus Automotive Services in Rockville, MD, we use advanced diagnostics to quickly identify and resolve engine-related issues for drivers from Germantown, Takoma Park, and Chevy Chase.

Common causes of a check engine light:

  •  Faulty oxygen or mass airflow sensors
  •  Loose or damaged gas cap
  •  Engine misfires or rough idling
  •  Catalytic converter issues
  •  Emissions or fuel system problems

Our diagnostic process includes:

  • Full OBD-II scan with code interpretation
  • Component testing and performance analysis
  • Detailed repair explanation and estimate
  • Same-day service on most repairs

Don’t ignore your warning light. Trust the experts at A Plus Automotive Services to give you honest answers and reliable repairs.