GMC Truck Mechanic in the Dallas-Fort Worth Area


You can trust PowerFlo Diesel for all your GMC diesel pickup truck maintenance and repairs in McKinney, TX and the surrounding towns. We specialize in light-duty pickups, including GMC models made between 1999 and 2017.

We’re here to help GMC truck owners with regular service checks as well as repairs. Let PowerFlo Diesel take care of all your maintenance, engine diagnostics, repairs and upgrades. Ask don’t forget to ask us about our OEM or aftermarket replacement parts, lighting products and high-performance accessories to boost your vehicle’s performance.

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What We Do

Bring your GMC truck to PowerFlo if you are experiencing any of the following diesel engine issues: starting or stalling problems, a surge when you’re idling, engine knocking, insufficient power and the appearance of black, white or blue smoke. These may indicate problems with your high-pressure pump, fuel supply system, turbocharger or exhaust gas recirculation (EGR) system. After making a definitive diagnosis, we recommend a solution, and then once we get your approval, our mechanics expertly perform the repair.

In addition to engine service and repairs, turbocharge upgrades, custom tunings, we perform scheduled maintenance, repair and upgrades of your vehicle’s:

  • Starting system
  • AC/heating
  • Fuel system
  • Hydraulics
  • Automatic or manual transmission
  • Clutch
  • Alignment
  • Suspension and shocks
  • Drivetrain
  • Brakes