Modern diesel trucks rely on complex electrical, fuel, emissions, and engine management systems that require more than simply replacing parts. At EP Diesel Service, we take a diagnostic-first approach to accurately identify the root cause of a problem before recommending repairs. Using OEM-level diagnostic software, specialized test equipment, we diagnose issues efficiently to help save you time and unnecessary expenses.

We diagnose a wide range of issues, including:

• Check engine lights and fault codes

• Hard starts and no-start conditions

• Loss of power and drivability concerns

• Fuel system and injector problems

• Turbocharger and boost system faults

• Electrical and wiring issues

• Charging and starting system failures

• DEF and emissions system concerns

• Sensor, module, and communication network faults

• Cooling system performance issues

• Intermittent and difficult to diagnose problems