Learn to Diagnose & Repair Electrical, Hydraulic, Fuel, After-Treatment and HVAC Systems Like a Pro!

4.9/5 star reviews
Thousands of happy customers worldwide
Spending hours swapping parts without solving the problem.
Intermittent electrical faults that keep coming back.
Comebacks caused by mis-diagnosed fuel or emission issues.
Not knowing which diagnostic tools are worth the investment.
Feeling stuck at the same pay grade with no clear path forward.
Implement our proven 5-Step Diagnostic Process on any vehicle.
Master advanced voltage drop and scope testing techniques.
Use our repair worksheets to guarantee first-time fixes.
Invest only in the diagnostic gear that delivers ROI fast.
Upsell preventative maintenance and increase revenue per ticket.

Identify the must-have diagnostic tools and how to use them for fast, accurate troubleshooting.

Master proven electrical testing methods—voltage drop, current draw and scope patterns—that pinpoint faults instantly.

Understand hydraulic theory, perform flow/pressure tests and execute leak-free repairs.

Gain expert knowledge of modern fuel systems, from common-rail diesel to gasoline direct injection, and fix them right the first time.

Apply our 5-Step Diagnostic Process to any system to eliminate guesswork and unnecessary parts swaps.

Learn practical service and regeneration strategies for DPF, SCR and EGR after-treatment systems.

" Managing a fleet of 120 delivery trucks, this course cut our downtime by 30%. My techs now diagnose electrical issues in minutes. "


" Dealership life is fast-paced. After this training, I clear after-treatment codes on the first visit and my flag hours have never been higher. "


" We service everything from combines to UTVs on our farm. The hydraulic and fuel system modules alone paid for the course within a week. "


Diagnostic Tool Essentials
Identify the must-have diagnostic tools and how to use them for fast, accurate troubleshooting.
Advanced Electrical Diagnostics
Master proven electrical testing methods—voltage drop, current draw and scope patterns—that pinpoint faults instantly.

Hydraulics 101
Understand hydraulic theory, perform flow/pressure tests and execute leak-free repairs.

Fuel System Mastery
Gain expert knowledge of modern fuel systems, from common-rail diesel to gasoline direct injection, and fix them right the first time.

Systematic Troubleshooting
Apply our 5-Step Diagnostic Process to any system to eliminate guesswork and unnecessary parts swaps.

After-Treatment Systems
Learn practical service and regeneration strategies for DPF, SCR and EGR after-treatment systems.

Automotive HVAC Masterclass
Master HVAC principles, refrigerant handling and advanced leak detection to keep cabins cool.

Service Documentation & Customer Communication
Document repairs, communicate value to customers and upsell preventative maintenance like a pro.

4.9/5 star reviews
Level up your diagnostic accuracy and repair speed with our comprehensive video lessons, live coaching and real-world case studies.

Immediate access to stream over 40 HD video lessons and real-world case studies.
Downloadable wiring diagrams, troubleshooting flowcharts and checklists.
Access to a private community of mechanics for collaboration and live Q&A.
Future module updates and new technology coverage at no additional cost.
Today Just

"Best purchase ever!"
" Dealership life is fast-paced. After this training, I clear after-treatment codes on the first visit and my flag hours have never been higher. "
ASE Master Technician with L1 & L2 Advanced Engine Performance Certifications
Former Lead Technical Trainer for a nationwide fleet maintenance company
Successfully trained over 2,500 mechanics across five continents
Consultant to OEMs on fuel system and after-treatment diagnostics
Creator of a five-star–rated YouTube channel with 100K+ subscribers
Founder of a thriving online community of professional mechanics

We want you to find value in our trainings! We offer full refunds within 30 days. With all of our valuable video training, we are confident you WILL love it!

Yes. We dedicate an entire module to DPF, SCR and EGR theory, fault codes, regen procedures and permanent fixes.
If you understand basic mechanical concepts and can use a multimeter, this course will elevate you to advanced diagnostic expertise.
We focus on real-world troubleshooting, business skills and live case studies that certification classes skip.
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