Accurate Check Engine Light Diagnostics

That illuminated Check Engine Light (CEL) is your car’s way of signaling a problem that needs immediate attention, even if your vehicle seems to be running fine.

Ignoring it can lead to reduced fuel economy, performance issues, and costly long-term damage. At Krietz Service Center in Frederick, MD, we don’t just “read the code”; our ASE-certified technicians perform thorough, accurate diagnostics to find the root cause of the problem.

We service all makes and models, and all subsequent repairs are backed by our exceptional 30 Month/30,000 Mile Warranty.

What We Service

The Check Engine Light can be triggered by hundreds of issues, from a simple loose gas cap to a complex transmission fault. Our comprehensive diagnostic process goes beyond basic code reading to include:

• Advanced Code Retrieval & Interpretation: utilizing state-of-the-art diagnostic tools to pull fault codes, then interpreting what those codes actually mean for your specific vehicle.
• In-Depth System Testing: performing voltage, vacuum, pressure, and temperature tests on sensors, wiring harnesses, and related systems (e.g., O2 Sensors, Mass Airflow Sensors, ignition coils).
• Emission System (EVAP) Diagnosis: finding and repairing leaks or faults in the system designed to control fuel vapor emissions.
• Identification of Secondary Issues: diagnosing problems that have resulted from the initial fault (e.g., carbon buildup caused by a prolonged sensor failure).
• Guaranteed Solution: providing a clear explanation of the necessary repairs, ensuring your vehicle passes state inspection and runs optimally.

Why Trust Krietz Service Center with Your Diagnostics?

Accurate diagnosis is the foundation of every successful repair. When you choose Krietz Auto, you choose a service built on transparency, value, and convenience:

• Unbeatable 30 Month/30,000 Mile Warranty: feel confident knowing any repair resulting from your diagnostic service is covered by our industry-leading warranty on all parts and labor.
• Complimentary 30-Point Inspection: every diagnostic appointment includes our thorough, complimentary 30-point inspection for total peace of mind.
• Free Loaner Cars: if your diagnosis leads to an extended repair, we provide free loaner cars to keep you mobile.
• Flexible 0% Financing: manage unexpected repair costs with our helpful 0% financing options on all parts and labor.
• Convenient After-Hours Service: utilize our secure drop box for after-hours pick up and drop off to fit service into your schedule.
• All Makes & Models Welcome: our Frederick, MD technicians are experts in handling the complex electronic systems of all foreign and domestic vehicles.

What the Light Means

The Check Engine Light (CEL) can illuminate in two ways, signaling the severity of the problem:

Steady / Solid Light:

• Meaning: a problem is detected that requires attention soon, such as a faulty sensor, an emissions issue, or a minor engine malfunction. You should schedule service as soon as possible, but it is generally safe to drive.
• Common Causes: loose gas cap, failing oxygen sensor, mass airflow sensor issues, spark plug/coil problems.

Flashing / Blinking Light (Critical!):

• Meaning: this indicates a severe engine misfire or another critical issue that is actively causing immediate damage to the catalytic converter or other major components.
• Action: stop driving immediately and call for a tow. Continued driving with a flashing CEL can lead to a costly breakdown.

Don’t Guess. Get an Accurate Diagnosis Today

When that light comes on, trust the diagnostic experts at Krietz Service Center in Frederick, MD. We promise an accurate assessment and a reliable solution. Avoid future breakdowns and costly repairs by scheduling your diagnostic appointment now.

Call Krietz Auto now at 301-694-4642 to schedule an appointment.

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