Automotive Field Theory

Thanks to our Partners, Pico Technology, and Autel
Watch Full Video Episode
A monologue from Jelly Roll prompted a simple but powerful idea: It is never too late to do the right thing.
That does not mean “the right thing” is always obvious. People can look at the same situation from different perspectives, reach different conclusions, and each possess part of the truth. The challenge is remembering that the client, employee, employer, or competitor across from us is a human being before they are a problem to solve or a category to assign.
In this episode, Matt considers how quickly automotive professionals can label a client as a “price shopper” when price may simply be the only part of the conversation the client understands. He also discusses clients arriving with information from Google or artificial intelligence, and how shops can use that information to create a better conversation about the time and access genuinely required for diagnostic testing.
The episode then turns toward leadership, accountability, and hindsight. If we recognize that we mishandled a situation yesterday, last year, or many years ago, the passage of time does not prevent us from acknowledging it, apologizing, or trying to make it right.
Finally, a physics thought experiment involving a bouncing ball and two reference frames illustrates how two observers can accurately describe the same event differently. Understanding another person’s perspective does not require agreeing with it, but it may help us judge them less quickly and respond more thoughtfully.
Topics include:
Why clients often default to asking about price
Information asymmetry between repair professionals and vehicle owners
Responding constructively when clients bring in AI-generated information
Why diagnostic testing takes more time than a list of possible causes suggests
The difference between understanding someone and agreeing with them
Revisiting past decisions as a leader
Apologies, accountability, and making amends
How perspective changes what we observe
Remembering the humanity of clients, coworkers, employers, and competitors
Doing the right thing for others and for yourself

Are you chasing elusive automotive problems? Pico Technology empowers you to see what's really happening. Their PicoScope oscilloscopes transform your diagnostic capabilities. PicoAuto.com
From drivability diagnostics and TPMS service to ADAS and advanced safety systems, Autel helps technicians follow OEM procedures and repair with confidence. Autel.com
Contact Information
Email Matt: mattfanslowpodcast@gmail.com
Subscribe on YouTube: @automotivefieldtheory

The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/
Download and Listen on Our Mobile App: https://automotiverepairpodcastnetwork.com/app/
Remarkable Results Radio Podcast with Carm Capriotto: https://remarkableresults.biz/
Business by the Numbers with Hunt Demarest: https://huntdemarest.captivate.fm/
The Auto Repair Marketing Podcast with Kim and Brian Walker: https://autorepairmarketing.captivate.fm/
The Weekly Blitz with Chris Cotton: https://chriscotton.captivate.fm/
Speak Up! Effective Communication with Craig O'Neill: https://craigoneill.captivate.fm/

Thanks to our Partners, Pico Technology, and Autel
Watch Full Video Episode
Matt Fanslow returns from WORLDPAC’s STX 2026 with a greater appreciation for everything required to make a major training event happen, especially the hands-on classes. Vehicles, tools, simulators, soldering stations, ventilation systems, safety requirements, instructors, support personnel, and countless late nights all have to come together before an attendee ever walks into the room.
He also challenges a persistent myth about oscilloscopes: that you must become an expert at interpreting tiny waveform anomalies before a scope becomes useful. Most failures are not nearly that subtle. Comparison testing, known-good examples, manufacturer support, training resources, and a little experience can make the scope useful much sooner than many specialists believe.
But the greatest value of an event like STX may extend beyond the classroom. Matt reflects on time spent with Jorge Menchu, Brin Kline, and other longtime friends and colleagues, and on how conferences create professional networks that can become genuine lifelong friendships.
For shop owners and managers, sending team members to training events is more than an educational expense. It is an investment in their skills, perspective, professional network, and connection to the industry. Matt encourages everyone to find a conference they can attend…and challenges shop leaders to help their people get there.
Topics include:
The enormous amount of work behind hands-on automotive training
Recognizing the people working behind the curtain
Teaching introductory PicoScope classes with Scott Shotton
Andrew Sexton’s introduction to key cutting and programming
Kevin Suttorp’s hands-on soldering and EEPROM training
Why oscilloscopes are more approachable than many specialists assume
Using comparison waveforms and known-good examples
Finding technical support and training resources
The professional and personal value of industry conferences
Building relationships outside your own shop
Why owners and managers should help their teams attend training events
Learning that other shops often face many of the same problems

Matt also recognizes Keith DeFazio, Isaac and Christina Rudell, Lonnie Horn, Justin Morgan, George Menchu, Bryn Klein, Richard Velko, Andrew Sexton, Kevin Sudor and his wife, and the many WORLDPAC employees, instructors, spouses, vendors, and support personnel whose work made STX 2026 possible.
Thanks to our Partner, Pico Technology
Are you chasing elusive automotive problems? Pico Technology empowers you to see what's really happening. Their PicoScope oscilloscopes transform your diagnostic capabilities. PicoAuto.com
Thanks to our Partner, Autel
From drivability diagnostics and TPMS service to ADAS and advanced safety systems, Autel helps technicians follow OEM procedures and repair with confidence. Autel.com
Contact Information
Email Matt: mattfanslowpodcast@gmail.com
Subscribe on YouTube: @automotivefieldtheory

The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/
Download and Listen on Our Mobile App: https://automotiverepairpodcastnetwork.com/app/
Remarkable Results Radio Podcast with Carm Capriotto: https://remarkableresults.biz/
Business by the Numbers with Hunt Demarest: https://huntdemarest.captivate.fm/
The Auto Repair Marketing Podcast with Kim and Brian Walker: https://autorepairmarketing.captivate.fm/
The Weekly Blitz with Chris Cotton: https://chriscotton.captivate.fm/
Speak Up! Effective Communication with Craig O'Neill: https://craigoneill.captivate.fm/

Thanks to our Partners, Pico Technology, and Autel
Watch Full Video Episode
For episode 250, Matt is joined by his wife, Danielle Fanslow, MSW, LGSW, LADCS, for a conversation about diagnostics...just not entirely the automotive kind.
Danielle works in behavioral health, mental health, and substance use treatment. Matt diagnoses cars. On the surface, those worlds seem pretty far apart, but both require professionals to gather incomplete information, recognize patterns, separate symptoms from causes, make recommendations, and earn enough trust for someone to act on those recommendations.
The conversation explores what happens when the process isn't as simple as following a flowchart. A trouble code doesn't automatically identify a failed component, just as a behavior or symptom doesn't necessarily reveal the underlying problem. In both fields, experience matters...but experience can also create shortcuts, assumptions, and confirmation bias.
Matt and Danielle compare diagnostic processes, the role of published procedures and best practices, and what happens when professionals deviate from them. They also discuss how a diagnosis can evolve as new information becomes available, why the label itself may matter less than addressing the actual problem, and how trust affects whether a client or customer accepts a professional recommendation.
The discussion also moves into some of the system-level pressures surrounding both industries. Insurance reimbursement, workload, time constraints, business survival, and administrative requirements can all influence professional decisions...sometimes creating situations where doing what is financially rewarded and doing what is actually best for the client are not perfectly aligned.
In this episode:
The similarities between automotive diagnostics and behavioral health assessment
Why symptoms are not necessarily causes
Gathering information before reaching a conclusion
Diagnostic procedures versus understanding how the system actually works
Why professional experience can improve a process...and sometimes bias it
Confirmation bias and the danger of deciding what the problem is too early
Communicating not only what you found, but why you believe it
Building trust when the customer or client cannot independently evaluate your diagnosis
Google, YouTube, AI, and the newly "educated" customer
Why transparency becomes especially important when trust is already low
The difference between a diagnosis and the problem someone actually wants solved
How behavioral-health diagnoses can evolve as a clinician learns more
Standardized procedures versus individualized care
Ethical pressure created by insurance reimbursement and business economics
When financial incentives begin influencing what services get recommended
Similar pressures between insurance-driven behavioral health and collision repair
Why good professionals sometimes deviate from prescribed diagnostic procedures
The responsibility that comes with making your own diagnostic strategy
Accepting that even a well-supported diagnosis can occasionally be wrong
Why being able to explain your reasoning matters when that happens
And, appropriately for episode 250...a fair amount of Matt and Danielle giving each other a hard time

About Danielle Fanslow
Danielle Fanslow holds a Master of Social Work and is a Licensed Graduate Social Worker and Licensed Alcohol and Drug Counselor Supervisor in Minnesota. Her experience includes substance use treatment, mental health, assessment, treatment planning, and behavioral-health systems.
Thanks to our Partner, Pico Technology
Are you chasing elusive automotive problems? Pico Technology empowers you to see what's really happening. Their PicoScope oscilloscopes transform your diagnostic capabilities. Visit PicoAuto.com
Thanks to our Partner, Autel
From drivability diagnostics and TPMS service to ADAS and advanced safety systems, Autel helps technicians follow OEM procedures and repair with confidence. Learn more at Autel.com
Contact Information
Email Matt: mattfanslowpodcast@gmail.com
Subscribe on YouTube: @automotivefieldtheory

The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/
Download and Listen on Our Mobile App: https://automotiverepairpodcastnetwork.com/app/
Remarkable Results Radio Podcast with Carm Capriotto: Advancing the Aftermarket by Facilitating Wisdom Through StoryTelling and Open Discussion. https://remarkableresults.biz/
Business by the Numbers with Hunt Demarest: Understand the Numbers of Your Business with CPA Hunt Demarest. https://huntdemarest.captivate.fm/
The Auto Repair Marketing Podcast with Kim and Brian Walker: Marketing Experts Brian & Kim Walker Work with Shop Owners to Take it to the Next Level. https://autorepairmarketing.captivate.fm/
The Weekly Blitz with Chris Cotton: Weekly Inspiration with Business Coach Chris Cotton from AutoFix - Auto Shop Coaching. https://chriscotton.captivate.fm/
Speak Up! Effective Communication with Craig O'Neill: Develop Interpersonal and Professional Communication Skills when Speaking to Audiences of Any Size. https://craigoneill.captivate.fm/

Thanks to our Partners, Pico Technology, and Autel
Watch Full Video Episode
How much freedom should an automotive professional have to deviate from published service information?
In this episode of Automotive Field Theory, Matt Fanslow digs into that question after a recent discussion involving ADAS procedures and Ford brake caliper fasteners that service information specifically instructs technicians to remove and discard.
The debate isn't really about one set of bolts.
It's about the level of confidence we sometimes have in deciding that a procedure isn't necessary when we don't actually know why the manufacturer specified it in the first place.
Matt compares following service information to insurance and personal protective equipment. Most days, neither appears necessary. You don't buy insurance because you expect to crash every day, and you don't wear PPE because something goes wrong every time you use it. They're there for the rare day when something does go badly wrong.
That same idea applies to automotive repair.
Millions of repairs may survive a shortcut without consequence. A rope-style tire plug may last the remaining life of the tire. A reused fastener may never loosen. A skipped calibration may never produce an obvious complaint.
But is a history of getting away with something the same as evidence that the procedure wasn't necessary?
Topics Discussed
Ford service information calling for certain brake fasteners to be removed and discarded
The difficulty of finding documentation explaining why Ford requires replacement
Whether thread locker, bolt coatings, fastener design, or another factor could be behind the requirement
Why the absence of an explanation doesn't automatically justify ignoring the procedure
Risk management in automotive repair
The difference between something working and something being an approved repair
Rope-style tire plugs versus manufacturer-approved tire repair procedures
Legal exposure when a repair deviates from accepted or published procedures
OE versus aftermarket ADAS calibration equipment and procedures
Why following the OE procedure provides an inherently defensible position
When departing from an OEM diagnostic trouble tree may be reasonable
The difference between deviating from a diagnostic process and deviating from a safety-related assembly procedure
Adding something such as thread locker to improve robustness versus eliminating a required step
The criticism sometimes directed toward specialists who follow service information
Why experience alone doesn't necessarily demonstrate that a specified procedure is unnecessary
PPE, insurance, and service procedures as protection against the exceptionally bad day

Key Takeaways
“I've always done it this way” isn't the same as knowing why the procedure exists.
A repair method can work hundreds or thousands of times without demonstrating that the manufacturer's requirement was unnecessary.
There are different kinds of deviations from service information.
Skipping steps in a diagnostic trouble tree because you understand the system and can perform more efficient testing isn't necessarily comparable to ignoring a torque specification, calibration requirement, preparation procedure, or instruction to replace a fastener.
Following the published procedure is also a form of risk management.
The value of the procedure may not reveal itself during the thousands of repairs where nothing goes wrong. Its value may be on the one repair where something does.
Doing exactly what the manufacturer published is difficult to criticize.
There may be legitimate aftermarket alternatives and there may even be procedures that can be improved upon. But if someone performs the repair exactly as the manufacturer specifies, criticizing them for being unnecessarily cautious is difficult to justify.
The Question
If service information specifically says to discard and replace a component but doesn't explain why, what level of evidence should be required before we decide that replacement isn't actually necessary?
And if documentation exists from Ford explaining why these particular fasteners must be replaced, or providing an approved procedure for their reuse, Matt wants to see it.
Thanks to our Partner, Pico Technology
Are you chasing elusive automotive problems? Pico Technology empowers you to see what's really happening. Their PicoScope oscilloscopes transform your diagnostic capabilities. Visit PicoAuto.com
Thanks to our Partner, Autel
From drivability diagnostics and TPMS service to ADAS and advanced safety systems, Autel helps technicians follow OEM procedures and repair with confidence. Learn more at Autel.com
Contact Information
Email Matt: mattfanslowpodcast@gmail.com
Subscribe on YouTube: @automotivefieldtheory

The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/
Download and Listen on Our Mobile App: https://automotiverepairpodcastnetwork.com/app/
Remarkable Results Radio Podcast with Carm Capriotto: Advancing the Aftermarket by Facilitating Wisdom Through StoryTelling and Open Discussion. https://remarkableresults.biz/
Business by the Numbers with Hunt Demarest: Understand the Numbers of Your Business with CPA Hunt Demarest. https://huntdemarest.captivate.fm/
The Auto Repair Marketing Podcast with Kim and Brian Walker: Marketing Experts Brian & Kim Walker Work with Shop Owners to Take it to the Next Level. https://autorepairmarketing.captivate.fm/
The Weekly Blitz with Chris Cotton: Weekly Inspiration with Business Coach Chris Cotton from AutoFix - Auto Shop Coaching. https://chriscotton.captivate.fm/
Speak Up! Effective Communication with Craig O'Neill: Develop Interpersonal and Professional Communication Skills when Speaking to Audiences of Any Size. https://craigoneill.captivate.fm/

Thanks to our Partners, Pico Technology and Autel
Watch Full Video Episode
Diagnosing the Aftermarket Becomes Automotive Field Theory
Things have changed.
After years as Diagnosing the Aftermarket A to Z, the podcast has a new name: Automotive Field Theory.
In this episode, Matt explains why the original title was chosen, why it eventually became a problem, and how the new name better represents both the podcast and the range of subjects explored on it.
The original name was intended to leave the show wide open. Automotive diagnostics and technology were always part of it, but so were psychology, economics, relationships, mental health, addiction, movies, sports, professional wrestling, and the people behind the work.
That freedom is not going away.
The problem was simpler: people searching for automotive and auto repair podcasts often could not find the show. Neither “diagnosing” nor “aftermarket” is exclusively connected to the automotive industry, and the word “automotive” did not appear anywhere in the title.
Automotive Field Theory solves that problem while also fitting the show on several levels.
It is a play on quantum field theory, reflecting Matt’s lifelong interest in physics and his tendency to explore how things actually work. It also refers to the entire automotive field, from vehicle design and manufacturing through sales, service, collision repair, locksmithing, programming, calibration, modification, and eventually recycling.
Finally, there is the theory itself: automotive theory, diagnostic theory, economic theory, psychological theory, and the hypotheses and ideas that shape how people understand the profession.
The name is changing. The podcast fundamentally is not.
In This Episode
Why Diagnosing the Aftermarket A to Z was originally chosen
The searchability problem with the old title
Why “automotive” needed to be in the name
The connection between automotive field theory and quantum field theory
The enormous range of careers contained within the automotive field
Where independent repair overlaps with collision, locksmithing, programming, and ADAS
Why the new title may make it easier to invite guests and reach new listeners
What listeners can expect from the show going forward
The people and podcasts that helped inspire and support the change

Matt also recognizes several shows across the Automotive Repair Podcast Network, including:
Remarkable Results Radio Podcast
Business by the Numbers
Speak Up! Effective Communication
The Auto Repair Marketing Podcast
The Weekly Blitz

A special thank-you goes to Tracy for the work behind the new logo, to Carm Capriotto and the Automotive Repair Podcast Network, and to sponsors Pico Technology and Autel.
Take a look at the new logo and let Matt know what you think. Guest suggestions are also welcome as Automotive Field Theory begins its next chapter.
Thanks to our Partner, Pico Technology
Are you chasing elusive automotive problems? Pico Technology empowers you to see what's really happening. Their PicoScope oscilloscopes transform your diagnostic capabilities. Visit PicoAuto.com
Thanks to our Partner, Autel
From drivability diagnostics and TPMS service to ADAS and advanced safety systems, Autel helps technicians follow OEM procedures and repair with confidence. Learn more at Autel.com
Contact Information
Email Matt: mattfanslowpodcast@gmail.com
Subscribe on YouTube: @automotivefieldtheory

The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/
Download and Listen on Our Mobile App: https://automotiverepairpodcastnetwork.com/app/
Remarkable Results Radio Podcast with Carm Capriotto: Advancing the Aftermarket by Facilitating Wisdom Through Story Telling and Open Discussion. https://remarkableresults.biz/
Business by the Numbers with Hunt Demarest: Understand the Numbers of Your Business with CPA Hunt Demarest. https://huntdemarest.captivate.fm/
The Auto Repair Marketing Podcast with Kim and Brian Walker: Marketing Experts Brian & Kim Walker Work with Shop Owners to Take it to the Next Level. https://autorepairmarketing.captivate.fm/
The Weekly Blitz with Chris Cotton: Weekly Inspiration with Business Coach Chris Cotton from AutoFix - Auto Shop Coaching. https://chriscotton.captivate.fm/
Speak Up! Effective Communication with Craig O'Neill: Develop Interpersonal and Professional Communication Skills when Speaking to Audiences of Any Size. https://craigoneill.captivate.fm/