Diagnostic Services:
- Advanced computer diagnostics for engine, transmission, and emission systems
- Check engine light testing and interpretation
- No-start and hard-start diagnostics
- Drivability diagnostics for hesitation, loss of power, or rough running
- Smoke testing for vacuum leaks and EVAP system issues
- Electrical diagnostics for wiring, sensors, modules, and charging systems
- Heating and A/C diagnostics for airflow and temperature concerns
- Overheating diagnosis and cooling system testing
- ABS diagnostics, braking system fault detection, and traction control issues
- Ford, GM, and Ram diesel pinpoint testing for Powerstroke, Duramax, and Cummins
- Fleet inspection and diagnostic programs
Today’s vehicles rely on complex electrical, electronic, and computer-controlled systems. When something goes wrong, accurate diagnostics are the only way to find the true source of the problem. At By The Book Diesel & Auto Repair, we use professional-grade diagnostic tools, factory-level software, and hands-on experience to pinpoint issues quickly and provide reliable solutions.
Whether your vehicle is showing warning lights, running rough, overheating, or refusing to start, our technicians take a systematic approach to determine exactly what is happening and why. We diagnose everything from drivability concerns to electrical failures, fuel system issues, emissions-related problems, and diesel-specific faults that require deeper testing.
Our equipment allows us to test fuel pressure, read live data, perform system calibrations, check communication modules, evaluate misfire counters, and identify failures in sensors or wiring. For diesel trucks, we perform pinpoint testing on high-pressure fuel systems, injection pumps, glow plugs, turbocharger systems, EGR components, and DPF regeneration cycles.
Common Issues We Diagnose:
- Check engine, ABS, or traction control lights
- Rough idle, stalling, misfires, or loss of power
- Unusual engine noises or vibration
- Overheating or coolant loss
- Hard starting or extended cranking
- Electrical failures or intermittent faults
- Fuel system issues, contamination, or poor fuel economy
- Air conditioning that won’t cool or heat
Why Our Diagnostics Are Different
We go beyond a simple code scan. Our technicians evaluate the full system, verify the cause, and confirm the repair path with testing, not guesswork. You receive clear communication, accurate recommendations, and a complete explanation of what we found and how to fix it.
When your vehicle is not performing as it should, trust the diagnostic experts at By The Book Diesel & Auto Repair. We identify problems fast, repair them correctly, and help you avoid unnecessary downtime or expensive failures.
