John Thornton Part 1 [E181]

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 Thorton, 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...

Diagnosing the Aftermarket A to Z

Where can you listen?

Episodes