Engine Diagnostics

Is your engine light on? Or is your car just not performing as it should?

Rely on our experienced technicians for superior engine diagnostics

Engine Diagnostics | Fairfield, CA | Good Guys General Auto Repair & Smog Check | 707-428-6621
Engine Diagnostics | Fairfield, CA | Good Guys General Auto Repair & Smog Check | 707-428-6621

Our diagnostics pinpoint your car's troubles

Rely on us to figure out why your car is not performing as it should. Our ASE-certified technicians can complete the repairs and have you back on the road in no time.



  • Electrical problems
  • Emissions
  • Engine diagnostics
  • Fuel injection issues
  • Battery malfunction and more!

Find out why your car is making that noise

You'll discover that we'll listen to your concerns and recommend the most cost-effective solution for your car troubles.

Bring in any make or model, foreign or domestic.

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