Automotive Field Theory

Automotive Repair Podcast
Automotive Repair Podcast
  • 4.8 (17)
  • Automotive
  • Updated Weekly

Automotive Field Theory explores the forces that shape automotive repair, including the ones measured with a meter or oscilloscope and the ones that cannot be found on a wiring diagram. Hosted by automotive diagnostic specialist, shop manager, and instructor Matt Fanslow, the podcast begins in the automotive aftermarket but rarely stays inside its traditional boundaries. Diagnostics, electricity, technology, leadership, psychology, economics, game theory, history, music, movies, family, and human behavior may appear unrelated. Look closely enough, however, and connections begin to emerge. A vehicle may arrive with a technical fault, but the work surrounding it is rarely technical alone. Information is incomplete. People make decisions under pressure and uncertainty. Incentives shape behavior. Standards gradually drift. Good intentions produce unexpected results. The official process may say one thing while the system quietly rewards another. Automotive Field Theory is an attempt to understand those interactions. Drawing from real diagnostic work, shop management, industry conversations, personal experience, and an occasionally inconvenient level of curiosity, Matt examines not only how things work, but why they work that way, how they became what they are, and what apparently unrelated subjects might teach us about repairing vehicles, leading people, running businesses, and improving the automotive industry. Some episodes begin with a failed component. Others begin with Metallica, quantum physics, professional wrestling, a historical disaster, a round of golf, or a question that refuses to leave Matt alone. Eventually, they all enter the same field.

  1. 3h ago

    The Ethics of a Diagnosis: Navigating System Pressures and Best Practices with Danielle Fanslow[E250]

    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 assessmentWhy symptoms are not necessarily causesGathering information before reaching a conclusionDiagnostic procedures versus understanding how the system actually worksWhy professional experience can improve a process...and sometimes bias itConfirmation bias and the danger of deciding what the problem is too earlyCommunicating not only what you found, but why you believe itBuilding trust when the customer or client cannot independently evaluate your diagnosisGoogle, YouTube, AI, and the newly "educated" customerWhy transparency becomes especially important when trust is already lowThe difference between a diagnosis and the problem someone actually wants solvedHow behavioral-health diagnoses can evolve as a clinician learns moreStandardized procedures versus individualized careEthical pressure created by insurance reimbursement and business economicsWhen financial incentives begin influencing what services get recommendedSimilar pressures between insurance-driven behavioral health and collision repairWhy good professionals sometimes deviate from prescribed diagnostic proceduresThe responsibility that comes with making your own diagnostic strategyAccepting that even a well-supported diagnosis can occasionally be wrongWhy being able to explain your reasoning matters when that happensAnd, 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.comSubscribe 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/

    The Ethics of a Diagnosis: Navigating System Pressures and Best Practices with Danielle Fanslow[E250]

  2. Aug 12

    Does Experience Give You Permission to Ignore Service Information? [E249]

    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 discardedThe difficulty of finding documentation explaining why Ford requires replacementWhether thread locker, bolt coatings, fastener design, or another factor could be behind the requirementWhy the absence of an explanation doesn't automatically justify ignoring the procedureRisk management in automotive repairThe difference between something working and something being an approved repairRope-style tire plugs versus manufacturer-approved tire repair proceduresLegal exposure when a repair deviates from accepted or published proceduresOE versus aftermarket ADAS calibration equipment and proceduresWhy following the OE procedure provides an inherently defensible positionWhen departing from an OEM diagnostic trouble tree may be reasonableThe difference between deviating from a diagnostic process and deviating from a safety-related assembly procedureAdding something such as thread locker to improve robustness versus eliminating a required stepThe criticism sometimes directed toward specialists who follow service informationWhy experience alone doesn't necessarily demonstrate that a specified procedure is unnecessaryPPE, 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.comSubscribe 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/

    Does Experience Give You Permission to Ignore Service Information? [E249]

  3. Aug 5

    Automotive Field Theory: Rebranding the Podcast [E248]

    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 chosenThe searchability problem with the old titleWhy “automotive” needed to be in the nameThe connection between automotive field theory and quantum field theoryThe enormous range of careers contained within the automotive fieldWhere independent repair overlaps with collision, locksmithing, programming, and ADASWhy the new title may make it easier to invite guests and reach new listenersWhat listeners can expect from the show going forwardThe 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 PodcastBusiness by the NumbersSpeak Up! Effective CommunicationThe Auto Repair Marketing PodcastThe 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.comSubscribe 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/

    Automotive Field Theory: Rebranding the Podcast [E248]

  4. Jul 29

    Why You Can't Motivate Someone Into Training [E247]

    Thanks to our Partners, Pico Technology, and Autel Watch Full Video Episode Why are some automotive repair specialists resistant to attending training, particularly when it takes place after work or on weekends? The easy explanation is that they are lazy, unmotivated, or unwilling to invest in themselves. Matt argues that this explanation may also be incomplete. In this episode, Matt examines training through the lens of incentives, career development, and systems thinking. A specialist who spends personal time and money developing new skills is often told that the investment will eventually produce better pay, greater opportunities, or increased job security. But what happens when those rewards never materialize? When training does not produce a visible improvement in compensation, working conditions, advancement, or professional stability, declining another class may be a rational decision rather than a character flaw. Matt discusses his own early motivation for attending training, the delayed payoff of that investment, and the importance of the relationships developed through classes, professional forums, and industry events. He also considers what shop owners and managers can do to make continued education feel like part of a legitimate career path rather than another demand placed on an employee’s personal life. Topics Discussed Why two people who make opposite decisions about training may both be acting rationallyThe traditional expectation that individuals fund their own professional developmentWhether increased knowledge reliably produces increased compensation“Cheap talk,” empty promises, and the loss of trust between employees and employersThe absence of clear career paths in automotive repairWhy keeping a job is not a meaningful reward unless the job is worth keepingMatt’s early, ego-driven pursuit of technical knowledgeThe delayed financial return from training and professional developmentThe value of relationships formed through classes, events, forums, and industry groupsThe difficulty of identifying and communicating one’s economic valueWhy character judgments should come after examining the system, not beforeProviding training during normal working hoursEstablishing clear expectations for continuing educationCreating positions and responsibilities for specialists throughout every stage of their careersWhy experienced employees should be a shop’s strongest advocatesThe shared reputation of the automotive repair profession Key Takeaway Before assuming that someone’s reluctance to attend training reflects laziness or a lack of ambition, examine the incentives surrounding the decision. Does training lead somewhere? Can the specialist see a realistic path toward greater compensation, responsibility, security, or professional satisfaction? Does the organization respect personal time while asking employees to continue developing? Individual shops cannot repair the entire profession alone, but each shop contributes to the larger system. Better career paths, meaningful rewards, workday training, and credible long-term planning can help make professional development feel like an investment rather than an obligation. Resources Mentioned Rich FalcoMike Allen and Confessions of a Shop OwnerDutch SilversteinRatchet+WrenchScannerDanner PremiumAutomotive SeminarsToday’s ClassiATN and other professional automotive communities Thanks to Pico Technology and Autel for supporting the podcast, and to the Automotive Repair Podcast Network. 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.comDiagnosing the Aftermarket A - Z YouTube Channel The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/ 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/

    Why You Can't Motivate Someone Into Training [E247]

  5. Jul 22

    The Power of Inspiration: From the Mat to the Shop [E246]

    Thanks to our Partners, Pico Technology, and Autel Watch Full Video Episode Are We Paying Attention to Inspiration? Ben Askren was already known for an accomplished wrestling career, MMA championships, and one of the most replayed knockouts in UFC history. After a life-threatening illness, severe physical decline, and a double-lung transplant, simply surviving would have been remarkable. Instead, Askren worked his way back onto a wrestling mat. In this episode, Matt reflects on Askren’s return to competition and the difficult position faced by the opponent standing across from him. Is the more respectful choice to hold back, allow Askren to look competitive, or treat him like any other athlete who willingly stepped onto the mat? The match demonstrated that respect does not necessarily mean pity. Sometimes it means taking another person’s effort seriously. That story leads into the larger subject of inspiration and the places it can come from. Matt connects Askren’s return with the film Always, starring Richard Dreyfuss, Holly Hunter, John Goodman, and Audrey Hepburn. The film centers on the idea that influence and inspiration can continue through the people, lessons, and experiences that remain with us. Inspiration does not have to come from an extraordinary recovery or a dramatic movie. It can come from a struggling repair shop that finds its way back, an industry community helping a family in need, an instructor presenting an idea differently, or a conversation with another attendee during a training event. Technical education is intended to build knowledge and ability, but its value is not limited to information. A class may inspire someone to use a forgotten tool, purchase a needed piece of equipment, approach a problem differently, make a small operational change, or believe they are capable of developing a new skill. The larger question is not whether inspiration exists around us. It is whether we are awake enough to recognize it. Topics Discussed Ben Askren’s return to the wrestling mat after a life-threatening illness and double-lung transplantThe difference between respecting a competitor and showing pityThe film Always and its central theme of inspirationHow ordinary people and events can create meaningful changeThe automotive repair industry supporting its own during difficult circumstancesTraining events as sources of energy, possibility, and renewed curiosityIntentionally placing ourselves in environments where inspiration is more likelyThe possibility of inspiring someone else without realizing it Are we actively looking for inspiration, recognizing the people who provide it, and allowing it to affect what we do next? 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.comDiagnosing the Aftermarket A - Z YouTube Channel The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/ 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/

    The Power of Inspiration: From the Mat to the Shop [E246]

  6. Jul 15

    The Most Controversial Tool in Automotive Electrical Diagnostics [E245]

    Thanks to our Partners, Pico Technology, and Autel Watch Full Video Episode Powered circuit testers tend to produce strong opinions. Some specialists consider them indispensable time-savers. Others see them as dangerous tools that make it far too easy to damage a circuit. In this episode, Matt examines where tools such as the Power Probe, Autel powered circuit tester, and metered test lights fit into an automotive diagnostic process. The ability to apply power or ground can be dangerous without an understanding of the circuit, but the same can be said of jumper wires, scan tools, oscilloscopes, and nearly every other useful diagnostic tool. Matt also opens the episode with thoughts on the unexpectedly short Conor McGregor and Max Holloway fight. Rather than focusing only on the disappointing result, he considers the discipline and preparation required to attempt something difficult, even when the attempt ultimately fails. That leads to a broader shop question: How should a leader respond when a capable employee puts in the work, takes on a difficult task, and still comes up short? In This Episode The difference between a powered circuit tester and a metered test lightWhy Power Probe-style tools remain controversialThe risks of applying power or ground to an unknown circuitWhy Matt prefers the speed and simplicity of the Power Probe IIIUsing powered testers on motors, relays, power windows, and power seatsTesting fuel-pump power and ground circuitsUsing the tester’s circuit breaker to evaluate whether a circuit can carry currentWhy unloaded voltage readings can be misleadingThe value of placing a known load on a circuitWhy corrosion can pass a voltage test but fail under loadMatt’s experience with the Lisle and TOPDON metered test lightsWhy an incandescent test light is often more useful than an LED test lightThe difference between a dangerous tool and an improperly used tool Key Takeaways A voltage reading does not necessarily prove that a circuit can perform useful work. A connection may show battery voltage through a meter and still fail when current is required. A metered test light can combine the speed of a traditional test light with an actual voltage reading and a known electrical load. Matt regularly uses this type of tester when checking fuses and evaluating circuit integrity. A powered circuit tester can also shorten the process of separating a failed component from a power-feed or ground problem. Matt describes using one at a fuel pump to verify the power side, ground side, and pump operation without repeatedly changing tools or building several different jumper-wire arrangements. The tool does make applying power or ground unusually easy. That convenience is precisely why the user needs to understand the circuit before pressing the switch. The Larger Question Should a tool be dismissed because it can cause damage in the wrong hands? A powered circuit tester can damage a circuit. A jumper wire can do the same. A scan tool can lead to expensive parts replacement when its information is misunderstood. The potential for misuse does not necessarily make the tool inappropriate. It may mean the specialist needs more knowledge before using it. Listener Question Do powered circuit testers belong in a professional diagnostic arsenal? Are they valuable time-savers, unnecessary risks, or a little of both? What version do you use, and where has it proven most useful? Mentioned in This Episode Power Probe IIIPower Probe HookAutel powered circuit testerLisle metered test lightTOPDON TC001/CT100-style circuit testerIncandescent and LED test lightsFuel-pump circuit testingRelay and electric-motor testing 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.comDiagnosing the Aftermarket A - Z YouTube Channel The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/ 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/

    The Most Controversial Tool in Automotive Electrical Diagnostics [E245]

  7. Jul 8

    Who Should Pay for Auto Repair Tools? Shop Owner or Employee? [E244]

    Thanks to our Partners, Pico Technology, and Autel Watch Full Video Episode In this episode, Matt digs into a question that sits underneath a lot of shop economics, technician frustration, and industry culture: who should be responsible for buying the tools and equipment required to do the work a shop advertises? The discussion starts with a real-world example involving a dealership service department that did not have a connector depinning tool available, leaving a mechanical or technical specialist considering buying the tool personally. From there, Matt explores where the line should be drawn between personal hand tools and shop-owned equipment. Basic hand tools may be one thing. But scan tools, diagnostic equipment, specialty service tools, alignment systems, AC machines, tire equipment, connector service kits, and timing tools raise a different question entirely. If a shop sells those capabilities to customers, should the employee have to make the investment? Matt also looks at the long-term consequences of pushing too much cost onto specialists. If a specialist builds up enough personal tooling and equipment to perform a broad range of services, the industry may be quietly encouraging them to leave employment and open their own shop. That may work for some, but it also shrinks the talent pool, increases turnover risk, and may contribute to people leaving the industry altogether. The episode closes with a shift into diagnostic tool history, including a short “Mount Rushmore” of influential tools and equipment: the SCA, the Edge/Sun systems, the Fluke 87, and the Snap-on Vantage. Watch Reel Video Key Topics Where the line falls between personal tools and shop-owned equipmentWhy “the specialist can just buy it” may be an unstable business strategyThe difference between basic hand tools and equipment required to sell a serviceHow tool investment affects technician income, risk, and career decisionsWhy shops should think about replacement cost when evaluating pay and retentionHow industry culture can unintentionally make shop ownership look like the only real path upwardThe difference between a tool investment working out and it actually being a good decisionVintage diagnostic equipment that changed how specialists worked Notable Ideas A shop advertising a capability should be equipped to perform that capability. If a shop sells alignments, AC service, tire work, connector repair, diagnostics, or programming, it becomes hard to justify the employee carrying the primary equipment burden. There may be some economic logic to a specialist buying a tool when they are guaranteed the work and the tool pays for itself. But that logic becomes unstable when the employee is taking the risk while the business is selling the service. Tool ownership can become a shadow path to business ownership. When specialists personally acquire enough tools and equipment to operate independently, the industry may be unintentionally training them to leave. Retention math has to include replacement cost. Production numbers matter, but so does the cost of losing a capable person, leaving a bay or role vacant, recruiting someone new, training them, and risking a revolving-door reputation. A tool purchase can “work out” without having been the smartest move. Matt reflects on his own history of buying diagnostic equipment and scan tools, noting that it helped build capability and reputation, but that does not automatically mean it was the best financial decision. Listener Question What tools or equipment have you been expected to buy personally? Where do you think the line should be between employee responsibility and shop responsibility? Should mechanical and technical specialists be expected to own anything beyond basic hand tools, or should the shop provide everything needed to perform the services it sells? Mentioned Diagnostic Equipment SCA diagnostic equipmentSun/Edge PC-based engine analyzer systemsFluke 87 digital multimeterSnap-on VantageSnap-on Vantage ProOTC PerceptionSun engine analyzersFour-gas and five-gas analyzers Pull Quotes “What's the logic of owning a business that advertises certain capabilities, but the shop itself is ill-equipped to be able to do that?” “If part of my purpose is to take care of my people, then one feature of that is to try to maximize their take-home pay and minimize their financial responsibilities to do the jobs they were hired to do.” “It may have worked out. I don't know if that means it was a good move.” 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.comDiagnosing the Aftermarket A - Z YouTube Channel The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/ 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/

    Who Should Pay for Auto Repair Tools? Shop Owner or Employee? [E244]

  8. Jul 1

    The Danger of Tunnel Vision in Automotive Diagnostics: Anchoring, Confirmation Bias, and Premature Closure [E243]

    Thanks to our Partners, Pico Technology, and Autel Watch Full Video Episode A Dodge Durango came into the shop for a second opinion after being suspected of needing a transmission. The symptoms sounded convincing at first: harsh shifts, apparent slipping, no diagnostic trouble codes, and a vehicle that felt completely wrong on the road. But the actual problem was much simpler. The Durango was stuck in four-low. Once shifted properly through neutral, the harsh shifting, driveline bind, and “slipping” behavior disappeared. Matt uses the case as a springboard into a broader discussion about diagnostic tunnel vision. The point is not just that someone almost condemned a transmission unnecessarily. The deeper issue is how easily a first impression can become the diagnosis. Once the vehicle felt like it was slipping, everything after that could be interpreted through that lens. That is where anchoring, confirmation bias, and premature closure start to become dangerous. The episode also compares the Durango case to a more common misfire scenario. A vehicle comes in with a misfire, the scan tool identifies a cylinder, the car line is known for coil failures, and the diagnosis becomes a coil and plug before much testing happens. That gamble may work most of the time, but the process failure is still there. Being right by probability is not the same as proving the fault. Matt also shares a personal example involving a Mini Cooper that was nearly misdiagnosed as needing a turbo. The actual issue was cam/crank timing related. The mistake became a difficult but important lesson in responsibility, process, and making things right with the customer. The episode closes with a nod to Mel Brooks on his 100th birthday, including Matt’s Mount Rushmore of Mel Brooks films: Blazing Saddles, Spaceballs, The Producers, and History of the World, Part One. Watch Durango Video Key Topics Why the Durango seemed like it had a major transmission failureHow four-low can mimic slipping, harsh shifting, and driveline problemsThe importance of reading the owner’s manual when unfamiliar indicators appearAnchoring, confirmation bias, and premature closure in diagnosticsWhy “incompetent” may be technically accurate but often incomplete as an explanationThe ethical problem of charging for the wrong repair when the real fix is simpleWhy common failures can make weak testing feel justifiedHow probabilistic diagnosis can work until it does notThe value of owning a mistake and making it rightMel Brooks, comedy, and Matt’s Mount Rushmore of Mel Brooks films Pull Quote Options “The first impression is often the most dangerous piece of data in the whole diagnostic process.”“Being right most of the time does not mean the process was right.”“Customers should not be paying for our anchoring, our confirmation bias, and our premature closure.”“The real danger is not being wrong. The real danger is being done too early.” Episode Takeaways A symptom that feels obvious can still be misleading. The Durango felt like it was slipping, but the transmission was not the problem.A flashing indicator or odd message on the dash may be the clue. The owner’s manual may not feel like a diagnostic tool, but sometimes it is.Common failures can create lazy confidence. A known coil failure pattern or common turbo issue may point in the right direction, but it does not replace verification.Premature closure is expensive. It can cost the customer, the shop, or both.Ethics matter most when the mistake is discovered after the repair. The customer should not pay for a part that did not fix the vehicle just because the shop eventually stumbled into the real fix.A good diagnostic process should include forced questions: What am I anchored to? What evidence am I accepting too easily? What would prove my theory wrong? 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.comDiagnosing the Aftermarket A - Z YouTube Channel The Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/ 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/

    The Danger of Tunnel Vision in Automotive Diagnostics: Anchoring, Confirmation Bias, and Premature Closure [E243]
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Automotive Field Theory explores the forces that shape automotive repair, including the ones measured with a meter or oscilloscope and the ones that cannot be found on a wiring diagram. Hosted by automotive diagnostic specialist, shop manager, and instructor Matt Fanslow, the podcast begins in the automotive aftermarket but rarely stays inside its traditional boundaries. Diagnostics, electricity, technology, leadership, psychology, economics, game theory, history, music, movies, family, and human behavior may appear unrelated. Look closely enough, however, and connections begin to emerge. A vehicle may arrive with a technical fault, but the work surrounding it is rarely technical alone. Information is incomplete. People make decisions under pressure and uncertainty. Incentives shape behavior. Standards gradually drift. Good intentions produce unexpected results. The official process may say one thing while the system quietly rewards another. Automotive Field Theory is an attempt to understand those interactions. Drawing from real diagnostic work, shop management, industry conversations, personal experience, and an occasionally inconvenient level of curiosity, Matt examines not only how things work, but why they work that way, how they became what they are, and what apparently unrelated subjects might teach us about repairing vehicles, leading people, running businesses, and improving the automotive industry. Some episodes begin with a failed component. Others begin with Metallica, quantum physics, professional wrestling, a historical disaster, a round of golf, or a question that refuses to leave Matt alone. Eventually, they all enter the same field.

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