GM Duramax Diesel Update

NAPA (3 hours)

GM Duramax Trucks are one of the most popular diesel vehicles on the road. Keeping up on the changes is important for profitability and diagnostics. This class will focus on the changes throughout the years, so that novice to experienced technicians will find value in its content. Topics covered:

  • Engine design changes – LB7, LLY, LBZ, LMM, LGH, LML models
  • Fuel systems – low pressure and high pressure system unique testing procedures and remedies
  • Piezo injector operation and testing techniques
  • Injector solenoid operation and testing techniques
  • Turbo operation tips, turbo diagnostics, common failures and turbo updates
  • DPF, EGR, DEF, system operation and common failures
  • Scan data and lab scope waveform diagnostics
  • How to test drive properly for driveability issues
  • Special tools needed to effectively work on newer Duramax platforms
  • Glow plug differences and testing
  • Technicians will come away with a deeper understanding of how most diesel engines function and how to repair them. GM specific issues will be covered. Expect a more informed technician so that time and parts estimates will become more accuate.