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Advanced Diesel

Learn to diagnose, troubleshoot, and reassemble.

Our advanced diesel graduates are among the best and brightest in the industry.

Building on the skills and techniques from the Diesel Technology core program, you’ll spend your 12 weeks in Advanced Diesel learning how to diagnose and repair a Class 8 Truck, as well as complete a multipoint inspection to make trucks DOT roadworthy upon completion. Along the way, you’ll learn troubleshooting and repair; take an in-depth exploration of electrical and mechanical systems; and learn the ins and outs of modern emissions.

Get dirty, work hard, and experience firsthand what it’s like to work in a fully functioning truck shop.

What You’ll Learn in Just 12 Weeks

Diagnose, Troubleshoot, and Repair

Tear down, diagnose, and rebuild a truck to DOT road-worthy

Electrical, Mechanical, and Emissions

Take an in-depth exploration of electrical and mechanical systems and learn the ins and outs of modern emissions.


Phase I

We start by performing a pre-delivery inspection (PDI) of the trucks you’ll work on during the program… then, we tear them all down and let the (literal) dirty work begin. In this first half of the program, you’ll learn how to navigate and use OEM websites for Cummins, CAT, PACCAR, and Detroit engines; look up torque values; replace rear springs; complete a door adjustment on a functioning truck; troubleshoot ABS and traction control, then order replacement parts as needed; troubleshoot and repair the air system; troubleshoot an electrical system, including lights and circuits; and learn how to research, change the parameters, and do a complete tune-up on a CAT engine, a Detroit engine, PACCAR engine, or a Cummins engine.

  • Conduct and Proper PDI Repair
  • Order and Parts List 
  • Perform a Dual Air System
  • Function Test 
  • Ensure ABS and Brake system are functioning correctly 

Phase II

You’ll spend most of this phase putting your shop’s trucks back together, replacing/repairing pieces as you go. This includes pulling transmissions and clutches to inspect them, then replacing (as needed) and reinstalling; checking the cooling system; checking the charge air cooler for leaks; inspecting the fifth wheel for tightness and adjustability; checking the fuel system, then removing, inspecting, cleaning and reinstalling the fuel tank; and performing steering checks and repairs.

  • Pull transmissions
  • Inspect and reinstall fuel tank
  • Clutch replacement and reinstallation
  • Run emission testing