Engine Diagnostics & Check Engine Light Repair in South St Paul, MN

When your check engine light turns on, it’s your vehicle telling you something isn’t right — and ignoring it can lead to bigger, more expensive problems. At TNT Repair MN, we provide fast, accurate engine diagnostics to identify the issue and get you safely back on the road.

Common Reasons Your Check Engine Light Is On

  • Engine misfires

  • Faulty sensors or wiring

  • Emissions system issues

  • Fuel system problems

  • Cold weather–related engine faults

If your light is flashing, it often means immediate service is needed.

Our Engine Diagnostic Process

We use professional diagnostic equipment to:

  • Read and interpret engine fault codes

  • Identify the true root cause (not guesswork)

  • Explain the issue clearly before repairs begin

No unnecessary parts. No upselling.

Serving South St Paul & the Twin Cities

We proudly serve South St Paul, Inver Grove Heights, West St Paul, and surrounding Minnesota communities. Whether it’s a daily driver, work truck, or fleet vehicle, our team has you covered.

Schedule Diagnostics Today

📞 Call TNT Repair MN now to schedule engine diagnostics or stop in for same-day service when available. Read more about it in our blog!

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