Truck & Heavy-Duty Diagnostics

When it comes to semi-trucks and heavy-duty vehicles, electrical and engine problems can mean lost time, lost revenue, and missed deadlines. At Dr. Bazziel – Automotive Diagnostics, we provide advanced truck and heavy-duty diagnostic services in Springfield, MO and surrounding areas, using professional dealer-level tools for accurate results.

What We Diagnose

• Engine Control Systems – Cummins, Detroit Diesel, Caterpillar, Volvo, PACCAR, International, and more
  
  

• Aftertreatment Systems – DPF, EGR, SCR/DEF system diagnostics and resets
  
  

• Transmission Control – Eaton, Allison, ZF, automated manual transmissions
  
  

• ABS & Brake Systems – Wabco, Bendix, Meritor
  
  

• Electronic Modules – Body controllers, instrument clusters, communication faults
  
  

• Electrical & Wiring Issues – shorts, open circuits, CAN/LIN/J1939 communication faults
  
  

Dealer-Level Tools & Coverage

We use Nexiq USB-Link 3, Diesel Laptops, Cummins Insite, Detroit DDDL, Allison DOC, Eaton ServiceRanger, OEM diagnostic platforms, and multi-brand HD scanners.
This ensures we can service freight fleets, vocational trucks, buses, and heavy equipment with accuracy.

Benefits of Professional Diagnostics

• Faster troubleshooting – reduce downtime and repair costs
  
  

• Accurate fault isolation – no guesswork or unnecessary parts replacement
  
  

• Fleet reliability – keep trucks running and compliant with DOT standards
  
  

• On-site service – mobile diagnostics available at your yard, shop, or roadside location
  
  

Our Process

1. Initial scan – read engine, transmission, ABS, and aftertreatment codes
   
   

2. Live data analysis – monitor fuel, boost, emissions, transmission performance
   
   

3. Functional tests – actuator tests, DPF regen, injector balance, system resets
   
   

4. Post-diagnostic report – clear explanation and recommendations for repair
   
   

Pricing

• Heavy-duty diagnostic service: $150 (first hour)
  
  

• Each additional hour billed at $125
  
  

• Specialized resets, regens, or programming quoted separately
  
  

Service Area

We provide heavy-duty truck diagnostics in Springfield, MO and nearby communities including Nixa, Ozark, Republic, Rogersville, Willard, Strafford, Branson, and fleet yards across southwest Missouri.

FAQ

Do you offer forced DPF regen?
Yes, we perform on-site DPF regenerations, soot level resets, and aftertreatment troubleshooting.

Can you program truck modules?
Yes, we support ECU, TCM, and ABS programming/reflashing on most major brands.

Do you work with fleets?
Yes, we offer diagnostics for single trucks or entire fleets, with mobile service available.