Thanks to our Partner, NAPA Autotech Training
Diagnosing the Aftermarket A to Z website
Show Notes:
Introduction & Sponsor Message
- Sponsored by NAPA AutoTech Training – Helping shops turn general technicians into profitable team members.
- Matt introduces John Thornton, a highly respected instructor and presenter in the automotive industry.
Early Days & Mentorship
- Matt and John reminisce about their first meeting in January 2020 at a training event in Minneapolis.
- John’s early influence through his Underhood Service Magazine columns, which shaped Matt’s diagnostic approach.
- Key articles that impacted Matt:
- Trigger Modes (Auto vs. Normal/Lab)
- In-Cylinder Pressure Testing (using a Fluke PV-350 transducer)
- Current Probe Diagnostics (Fluke ADI-110S)
Diagnostic Awakenings
- John’s guidance helped Matt diagnose a shorting fuel injector on a 1987 Chrysler Conquest Turbo, leading to a deeper understanding of inductive kick.
- Importance of post-repair testing to solidify learning.
Documentation & Knowledge Sharing
- John’s method of annotating wiring diagrams and keeping physical file cabinets for quick reference.
- Transition from paper-based documentation to digital tools (e.g., PicoScope’s annotation features).
Evolution of Service Information
- From Chilton/Motor manuals to Mitchell on Demand (disc-based) to modern OEM online portals (Toyota, Chrysler, BMW).
- The power of hyperlinked wiring diagrams and 3D connector views in OEM service info.
Training & Public Speaking
- John’s philosophy on preparation: Rehearsing presentations multiple times to ensure smooth delivery.
- Handling technical difficulties (e.g., projector failures) by staying adaptable.
- Encouraging techs to share knowledge through platforms like Vision Hi-Tech Training & Expo.
Teaser for Part 2
- Next episode dives deeper into CAN bus diagnostics, multiair systems, and more training insights.
Key Takeaways:
- Diagnostic growth comes from post-repair analysis and documentation.
- Service information has evolved dramatically—OEM portals now offer unparalleled detail.
- Effective training requires relentless preparation and adaptability.
Listen to Part 2 next week for more insights!
Thanks to our Partner, NAPA Autotech Training
NAPA Autotech’s team of ASE Master Certified Instructors are conducting over 1,200 classes covering 28 automotive topics. To see a selection, go to napaautotech.com for more details.
Contact Information
The Aftermarket Radio Network: https://aftermarketradionetwork.com/
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