{"version":"1.0.0","episode":{"title":"From Guesswork to Process: Modern Diagnostic Strategies for Auto Repair Shops [RR 1093]","url":"http://getcarcurious.com/episodes/from-guesswork-to-process-modern-diagnostic-strategies-for-auto-repair-shops-rr-1093","audioUrl":"https://episodes.captivate.fm/episode/0044dd4e-5752-4aed-8f68-e8a5659a5a1d.mp3","description":"Thanks to our Partners, NAPA Auto Care and NAPA TRACS\n\nWatch Full Video Episode\nRecorded live at the 2026 TST Big Event, Carm Capriotto sits down with automotive trainer Ken Zanders to discuss the importance of ongoing technical education, building efficient diagnostic processes, and adapting to rapidly evolving vehicle technology. Ken explains why too many shops still rely on a chaotic “grocery list” approach to repairs and how a structured diagnostic strategy can dramatically improve technician efficiency, profitability, and customer trust.\nWhat You’ll Learn\n\nWhy inefficient diagnostic habits directly reduce technician productivity, shop profitability, and overall earning potential.The importance of following a structured diagnostic workflow instead of guessing and replacing parts.How electronic relative compression testing with a lab scope and amperage probe can reduce diagnostic time from hours to minutes.How modern vehicle technologies like GM’s Vehicle Intelligence Platform (VIP) and Over-The-Air (OTA) updates are changing diagnostics and repair procedures.Why continuous education is no longer optional for automotive professionals working on today’s advanced vehicle systems.\nThe biggest takeaway from this episode is that repair shops cannot afford to operate in constant chaos and guesswork. A reactive “grocery list” approach to diagnostics leads to wasted time, unnecessary parts replacement, lower profits, and poor customer outcomes. To succeed in today’s increasingly complex automotive industry, shop owners must create a year-round training strategy that helps technicians diagnose efficiently, think critically, and continuously improve their skills. Structured processes, modern testing methods, and ongoing education are no longer advantages; they are necessities for survival and growth.\nTST Big Event: https://tstseminars.org/\nKen Zanders, Dorman Training\nDon’t Base Your Success On Probability – Ken Zanders [RR 822]: https://remarkableresults.biz/remarkable-results-radio-podcast/e822/\nThanks to our Partners, NAPA Auto Care and NAPA TRACS\nLearn more about NAPA Auto Care and the benefits of being part of the NAPA family by visiting https://www.napaonline.com/en/auto-care\nNAPA TRACS will move your shop into the SMS fast lane with onsite training and six days a week of support and local representation. Find NAPA TRACS on the Web at http://napatracs.com/\nConnect with the Podcast:\nVisit the Website: https://remarkableresults.biz/\nSubscribe on YouTube: https://www.youtube.com/carmcapriotto\nFollow on Facebook: https://www.facebook.com/RemarkableResultsRadioPodcast/\nFollow on LinkedIn: https://www.linkedin.com/in/carmcapriotto/\n\nFollow on Instagram: https://www.instagram.com/remarkableresultsradiopodcast/\n\nJoin Our Virtual Toastmasters Club: https://remarkableresults.biz/toastmasters\n\nJoin Our Private Facebook Community: https://www.facebook.com/groups/1734687266778976\n\nJoin our Insider List: https://remarkableresults.biz/insider\n\nAll books mentioned on our podcasts: https://remarkableresults.biz/books\n\nOur Classroom page for personal or team learning: https://remarkableresults.biz/classroom\n\nSpecial episode collections: https://remarkableresults.biz/collections\n\nBuy Me a Coffee: https://www.buymeacoffee.com/carm\n\n \n\nThe Automotive Repair Podcast Network: https://automotiverepairpodcastnetwork.com/\n\nRemarkable Results Radio Podcast with Carm Capriotto: Advancing the Aftermarket by Facilitating Wisdom Through Story Telling and Open Discussion. https://remarkableresults.biz/\n\nDiagnosing the Aftermarket A to Z with Matt Fanslow: From Diagnostics to Metallica and Mental Health, Matt Fanslow is Lifting the Hood on Life. https://mattfanslow.captivate.fm/\n\nBusiness by the Numbers with Hunt Demarest: Understand the Numbers of Your Business with CPA Hunt Demarest. https://huntdemarest.captivate.fm/\n\nThe 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/\n\nThe Weekly Blitz with Chris Cotton: Weekly Inspiration with Business Coach Chris Cotton from AutoFix - Auto Shop Coaching. https://chriscotton.captivate.fm/\n\nSpeak Up! Effective Communication with Craig O'Neill: Develop Interpersonal and Professional Communication Skills when Speaking to Audiences of Any Size. https://craigoneill.captivate.fm\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n"},"annotations":[{"startTime":371.4,"endTime":377.0,"type":"term","title":"relative compression test","url":"/glossary/relative-compression-test","quote":"...suggesting that the young technicians be taught how to do what is called a relative compression test. And basically it's a compression test that's done electronically versus conventional.","canonicalId":"term:relative-compression-test","priority":0.85,"confidence":0.92,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"A relative compression test compares the compression of multiple cylinders to each other, rather than measuring absolute PSI/bar. In this episode, it’s described as being done electronically, which helps technicians spot which cylinder(s) are low and narrow down causes like worn rings, valves, or head-gasket issues.","simplifiedExplanation":"It’s a way to check how healthy each cylinder is by comparing them to each other. Instead of just getting one number, it helps you see which cylinder is weaker so you can focus your diagnosis."}},{"startTime":377.0,"endTime":386.6,"type":"term","title":"conventional","url":"/glossary/conventional","quote":"...a relative compression test. And basically it's a compression test that's done electronically versus conventional. Now conventional means would be to take all the spark plugs out and get all the aesthetics out of the way that are on the engine.","canonicalId":"term:conventional","priority":0.55,"confidence":0.7,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"In this context, “conventional” refers to the traditional compression test method that requires removing components to access the cylinders. The speaker contrasts it with an electronic approach, emphasizing that the conventional method takes more time because of the physical disassembly required.","simplifiedExplanation":"Here, “conventional” means the older, more hands-on way of doing the test. It usually takes longer because you have to remove parts to get to the cylinders."}},{"startTime":380.2,"endTime":383.7,"type":"part","title":"spark plugs","url":"/glossary/spark-plugs","quote":"Now conventional means would be to take all the spark plugs out and get all the aesthetics out of the way that are on the engine.","canonicalId":"part:spark-plugs","priority":0.35,"confidence":0.86,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"Spark plugs are the ignition components that create the spark to ignite the air-fuel mixture in each cylinder. For a traditional compression test, technicians often remove spark plugs to reduce resistance and allow the engine to crank more freely and consistently.","simplifiedExplanation":"Spark plugs make the spark that lights the fuel in each cylinder. For some engine tests, they’re removed so the engine can crank easier and the results are more accurate."}},{"startTime":416.4,"endTime":417.8,"type":"term","title":"coils","url":"/glossary/coil","quote":"They gotta move stuff out of the way.\nThey gotta take coils off.\nThey run the tests, they're two hours in.","canonicalId":"term:coils","priority":0.25,"confidence":0.75,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"In an engine context, “coils” usually refers to ignition coils, which convert battery voltage into the high voltage needed to fire the spark plugs. Removing coils is often part of accessing spark plugs or running certain diagnostic checks. If coils are removed, reinstallation time and careful handling matter because mis-seating connectors can create new faults.","simplifiedExplanation":"“Coils” are part of the ignition system that help create the spark for the engine. Shops may remove them to access spark plugs or run tests. Putting them back correctly is important so the car doesn’t develop new problems."}},{"startTime":442.1,"endTime":443.9,"type":"concept","title":"misunderstanding","url":"/glossary/misunderstanding","quote":"And that's due to misunderstanding.\nI get it.\nWhen you go to a doctor, if he runs a test","canonicalId":"concept:misunderstanding","priority":0.5,"confidence":0.85,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"The episode highlights a common diagnostic-shop issue: customers may expect a “found problem” outcome to justify the bill. When tests come back normal, the value is still in ruling out likely causes and preventing unnecessary repairs. This is essentially the difference between “diagnosis” and “repair,” and how customers interpret test results.","simplifiedExplanation":"Sometimes customers think they only should pay if the mechanic finds something broken. But diagnostics can still be valuable even when the test is normal, because it helps rule out the most likely causes. It’s like paying for an exam even if you’re told you’re okay."}},{"startTime":515.7,"endTime":520.12,"type":"term","title":"amperage probe","url":"/glossary/amperage-probe","quote":"Well, I'm gonna run this test electronically.\n[512.1s] Well, I'm gonna run this test electronically.\n[515.7s] And basically, I'm gonna take an amperage probe.\n[518.4s] I'm gonna put it around your battery cable.","canonicalId":"term:amperage-probe","priority":0.65,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"An amperage probe is a current-sensing tool used to measure electrical current without directly disconnecting wiring. In diagnostics, it can help identify abnormal draw or verify that a circuit is behaving as expected. Clamping it around a battery cable lets the technician observe current flow during starting or operation."}},{"startTime":518.4,"endTime":520.12,"type":"term","title":"battery cable","url":"/glossary/battery-cable","quote":"And basically, I'm gonna take an amperage probe.\n[518.4s] I'm gonna put it around your battery cable.","canonicalId":"term:battery-cable","priority":0.35,"confidence":0.75,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"A battery cable is the heavy-gauge wire that connects the car’s battery to the rest of the electrical system, including the starter and main power distribution. Because it carries high current, it’s a common place to measure current draw during diagnostics. Clamping a current probe around it can reveal whether the system is pulling too much or too little power.","simplifiedExplanation":"The battery cable is the thick wire that carries power from the battery to the car. It’s where a lot of electrical current flows, especially when starting. That’s why it’s a useful spot to measure current during troubleshooting."}},{"startTime":523.3,"endTime":524.8,"type":"term","title":"lab scope","url":"/glossary/lab-scope","quote":"I'm gonna attach it to my lab scope.\nI'm gonna get this pattern that we expect to see.","canonicalId":"term:lab-scope","priority":0.55,"confidence":0.78,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"A “lab scope” is a diagnostic oscilloscope used to view electrical signals from a vehicle’s sensors and actuators. Instead of guessing from scan-tool codes alone, the technician looks at the waveform pattern to confirm what the system is doing.","simplifiedExplanation":"A “lab scope” is a special tool that shows electrical signals as a graph. In car diagnostics, it helps you see what a sensor is really doing instead of guessing."}},{"startTime":525.9,"endTime":533.0,"type":"term","title":"pattern","quote":"I'm gonna get this pattern that we expect to see.\nI'm hoping and expecting to get a pattern.\nThat's a good pattern.","canonicalId":"term:pattern","priority":0.45,"confidence":0.62,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"In diagnostics, a “pattern” refers to the expected waveform or signal behavior that indicates a system is operating correctly. The technician compares what the oscilloscope shows to a known-good pattern to decide whether the diagnosis is on track."}},{"startTime":556.1,"endTime":557.8,"type":"concept","title":"efficiency thing","quote":"Do it, baby.\nThis is the whole efficiency thing.\nExactly.","canonicalId":"concept:efficiency-thing","priority":0.4,"confidence":0.6,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Efficiency” in a repair shop context means using a repeatable diagnostic process so tests are completed quickly and correctly. The goal is to turn diagnostic time into actionable results—reducing guesswork and improving throughput.","simplifiedExplanation":"“Efficiency” here means the shop’s diagnostic process is organized so they can find the problem faster and with fewer mistakes. It’s about getting reliable answers in a reasonable amount of time."}},{"startTime":567.7,"endTime":569.2,"type":"company","title":"Dorman","url":"/glossary/dorman","quote":"You're out with Dorman.\nI mean, I don't know, are you ever home?","canonicalId":"company:dorman","priority":0.25,"confidence":0.75,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"Dorman is an automotive parts brand/company known for aftermarket replacement components and training resources for repair shops. In this segment, it’s referenced in the context of the speaker’s work and training background.","simplifiedExplanation":"Dorman is an auto-parts company that makes replacement parts for many vehicles. Here it’s mentioned because the speaker is associated with their training."}},{"startTime":649.1,"endTime":665.9,"type":"concept","title":"Verify the concern","url":"/glossary/verify-the-concern","quote":"And my step one is nothing new. \n[649.1s] Verify the concern. \n[650.2s] I've actually gone to shops and I'll say, \n[653.3s] well, what was the customer's concern?","canonicalId":"concept:verify-the-concern","priority":0.6,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Verify the concern” is a diagnostic workflow step where the shop confirms the customer’s complaint before jumping to tests or parts. The idea is to ensure the symptom is real and correctly described, because miscommunication can lead to chasing the wrong problem.","simplifiedExplanation":"This means the technician confirms the problem the customer is complaining about before doing anything else. It helps avoid diagnosing the wrong issue because the complaint might be unclear or incomplete."}},{"startTime":668.0,"endTime":671.4,"type":"concept","title":"question one","url":"/glossary/question-one","quote":"So now let's say we successfully get past question one. \n[671.4s] We then go to question two. \n[673.0s] I've had some very good friends and technicians tell me,","canonicalId":"concept:question-one","priority":0.45,"confidence":0.75,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Question one” here refers to the first step in a structured diagnostic decision tree used by the shop. It emphasizes that diagnosis should follow a defined sequence of checks rather than random troubleshooting.","simplifiedExplanation":"They’re talking about the first step in a checklist for diagnosing the car. Instead of guessing, the shop follows questions in order to narrow down the cause."}},{"startTime":675.4,"endTime":683.4,"type":"term","title":"pending code","url":"/glossary/pending-code","quote":"I've had some very good friends and technicians tell me, \n[675.4s] well, Kenny, why should I check for codes? \n[676.9s] Check engine light is on. \n[678.1s] Well, there could be a pending code.","canonicalId":"term:pending-code","priority":0.55,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"A pending code is an OBD-II diagnostic trouble code that the car’s computer has detected but hasn’t confirmed strongly enough to turn on the check engine light yet. It often means the fault happened intermittently, or the conditions for a “confirmed” code haven’t been met across enough drive cycles.","simplifiedExplanation":"A pending code is a “maybe” problem the car’s computer noticed. It usually means the issue is happening sometimes, and the car hasn’t fully confirmed it yet to turn on the check engine light."}},{"startTime":675.4,"endTime":683.4,"type":"concept","title":"check for codes","url":"/glossary/check-for-codes","quote":"well, Kenny, why should I check for codes? \n[675.4s] well, Kenny, why should I check for codes? \n[676.9s] Check engine light is on. \n[678.1s] Well, there could be a pending code.","canonicalId":"concept:check-for-codes","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Check for codes” means scanning the vehicle for diagnostic trouble codes stored in the car’s computer. Codes (including pending ones) provide objective clues about what systems the car detected as abnormal, helping technicians avoid guesswork.","simplifiedExplanation":"This means using a scanner to read the car’s stored error messages. Those codes help point to the system that’s having trouble, instead of guessing."}},{"startTime":676.9,"endTime":683.4,"type":"term","title":"check engine light","url":"/glossary/check-engine-light","quote":"well, Kenny, why should I check for codes? \n[676.9s] Check engine light is on. \n[678.1s] Well, there could be a pending code. \n[681.1s] The pending code happened for a reason.","canonicalId":"term:check-engine-light","priority":0.5,"confidence":0.85,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"The check engine light is the dashboard indicator that the vehicle’s onboard diagnostics (OBD-II) have detected a problem worth alerting the driver about. In diagnostic work, it’s a starting clue, but technicians also look for stored and pending codes to understand what the computer saw and when.","simplifiedExplanation":"The check engine light is the car’s way of saying, “Something isn’t right.” A mechanic doesn’t just guess from the light—they scan the car to see what the computer recorded."}},{"startTime":686.7,"endTime":688.9,"type":"term","title":"pre-scan report","url":"/glossary/pre-scan-report","quote":"[685.2s] and making a note.\n[686.7s] Do a pre-scan report.\n[689.0s] And then last but not least,","canonicalId":"term:pre-scan-report","priority":0.55,"confidence":0.78,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"A pre-scan report is the shop’s initial output from scanning the vehicle before deeper diagnosis. It typically summarizes stored and pending diagnostic trouble codes (DTCs) and may include basic readiness/vehicle status info to guide the next checks.","simplifiedExplanation":"Before you start guessing, you scan the car with a diagnostic tool. The pre-scan report is the first summary of what the car is complaining about, usually in the form of error codes."}},{"startTime":695.7,"endTime":699.3,"type":"term","title":"TSBs","url":"/glossary/tsbs","quote":"[692.8s] And a lot of technicians admit.\n[695.7s] Step number three, you should be checking for TSBs.\n[699.3s] Maybe that TSB might be the only fix.","canonicalId":"term:tsbs","priority":0.8,"confidence":0.93,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"TSBs (Technical Service Bulletins) are manufacturer-issued repair instructions for known problems. In diagnostics, checking TSBs can reveal the correct fix and even the exact sequence of steps the manufacturer expects for a given symptom or code.","simplifiedExplanation":"TSBs are official repair notes from the car maker. If your car has a known issue, the TSB can tell the mechanic the right fix and what to do next."}},{"startTime":709.0,"endTime":712.2,"type":"term","title":"reflash ECM","url":"/glossary/reflash-ecm","quote":"[707.8s] step three on the TSB.\n[709.0s] And if the last step says reflash ECM\n[711.3s] and that's the end of the bulletin, that's it.","canonicalId":"term:reflash-ecm","priority":0.65,"confidence":0.86,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Reflash ECM” means updating the Engine Control Module’s software with a newer calibration. Many TSBs end with a reflash because the fix is sometimes a software change rather than a mechanical part replacement.","simplifiedExplanation":"Reflash ECM means updating the car’s engine computer software. Sometimes the problem is caused by outdated software, and the update fixes it without replacing parts."}},{"startTime":788.9,"endTime":793.6,"type":"term","title":"module","url":"/glossary/modules","quote":"I own a particular scan tool where there's a module that you attach to the scan tool. And it has software in there where it'll run battery starting charging.","canonicalId":"term:module","priority":0.6,"confidence":0.55,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"A diagnostic module is an add-on hardware piece that expands what a scan tool can do. In this context, the module runs battery-related tests and interfaces with the scan tool’s software to collect results.","simplifiedExplanation":"A module is an extra attachment for the scan tool. It lets the tool do more specialized tests—here, related to the battery and starting system."}},{"startTime":793.6,"endTime":797.8,"type":"term","title":"battery starting charging","url":"/glossary/battery-starting-charging","quote":"And it has software in there where it'll run battery starting charging. And it's a done deal. So now I get past that.","canonicalId":"term:battery-starting-charging","priority":0.65,"confidence":0.7,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Battery starting charging” refers to the three linked parts of the car’s electrical system: the battery’s ability to supply power, the starter’s ability to crank, and the alternator/charging system’s ability to recharge. Checking all three helps isolate whether a no-start or weak-start issue is electrical or mechanical.","simplifiedExplanation":"This phrase means checking the battery, the starting system, and the charging system together. If the car won’t start, the problem could be the battery, the starter, or the alternator—not just the engine."}},{"startTime":813.7,"endTime":818.6,"type":"concept","title":"diagnostic stop","quote":"My opinion, the diagnostic stop because I need a good engine before I can go any further. How are you going to determine that?","canonicalId":"concept:diagnostic-stop","priority":0.6,"confidence":0.6,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"A “diagnostic stop” is a deliberate checkpoint where you pause the process until a key condition is confirmed. The speaker’s point is that you shouldn’t move on to deeper mechanical diagnosis until you’ve verified the engine’s starting/electrical prerequisites are satisfied.","simplifiedExplanation":"A diagnostic stop is a moment where you stop and confirm something important before going further. It prevents wasting time chasing mechanical problems when the real issue is electrical or starting-related."}},{"startTime":823.7,"endTime":826.6,"type":"term","title":"current probe","url":"/glossary/current-probe","quote":"Well, we're going to run the test electronically. A current probe is placed around the battery cable. The current probe is then attached to a laptop with software.","canonicalId":"term:current-probe","priority":0.7,"confidence":0.82,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"A current probe measures electrical current without directly disconnecting the circuit. Here it’s placed around the battery cable so the technician can see how much current the starter draws while cranking, which helps diagnose weak electrical supply vs. other causes.","simplifiedExplanation":"A current probe is a sensor that measures how much electricity is flowing. Clamped around the battery cable, it helps show whether the starter is drawing the expected current when the engine is cranked."}},{"startTime":864.6,"endTime":892.7,"type":"term","title":"compression testing","url":"/glossary/compression-testing","quote":"And they are prompting those schools\n[864.6s] to teach relative compression testing, no matter what.\n[870.2s] It just makes sense.","canonicalId":"term:compression-testing","priority":0.75,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"Compression testing is a diagnostic method that measures how much pressure an engine can build in its cylinders. It helps identify internal engine problems like worn rings, leaking valves, or head gasket issues by showing whether cylinders are producing healthy pressure. In this episode, the host emphasizes using it as part of a repeatable diagnostic process.","simplifiedExplanation":"Compression testing is a way to check how well an engine’s cylinders are sealing and building pressure. If one cylinder is weak, it can point to problems inside the engine. The point here is that it’s a useful step shops can do to avoid guessing."}},{"startTime":872.1,"endTime":874.9,"type":"concept","title":"engine families","quote":"It just makes sense.\n[872.1s] These engine families have become very difficult\n[874.9s] to get to things.","canonicalId":"concept:engine-families","priority":0.3,"confidence":0.65,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Engine families” are groups of related engines that share design architecture, components, and service characteristics. The host is saying some of these families have become harder to access for testing because packaging and design changes make certain components difficult to reach. That’s why a faster, more targeted test strategy matters.","simplifiedExplanation":"“Engine families” means engines that are related by design. Some newer designs are packaged tightly, so it’s harder to reach parts for testing. The episode is pointing out that access problems can make certain diagnostic steps take longer."}},{"startTime":904.9,"endTime":909.0,"type":"concept","title":"drivability","url":"/glossary/drivability","quote":"[900.1s] And then only to find out the compression is good.\n[904.9s] Is this process necessary for drivability or check engine?\n[909.0s] I would say absolutely, it just makes sense.","canonicalId":"concept:drivability","priority":0.35,"confidence":0.8,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Drivability” refers to how the vehicle behaves while being driven—things like hesitation, rough running, stalling, or poor throttle response. It’s a common complaint category in repair shops because many different systems (fuel, ignition, sensors, and sometimes internal engine condition) can cause drivability issues. The host ties compression testing to resolving drivability concerns.","simplifiedExplanation":"“Drivability” means how the car feels and acts when you’re driving it. Problems like stumbling, hesitation, or running rough fall under drivability complaints. The episode suggests compression testing can help rule in or out internal engine causes."}},{"startTime":914.0,"endTime":916.7,"type":"term","title":"check ignition","url":"/glossary/check-ignition","quote":"[911.6s] It's a makes sense process.\n[914.0s] Common sense, number five, check ignition.\n[916.7s] Check ignition.","canonicalId":"term:check-ignition","priority":0.45,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"In diagnostics, “check ignition” means verifying the ignition system’s ability to create spark and/or trigger ignition events. Shops typically do this early because ignition-related faults can often be isolated quickly with basic electrical checks and scan-tool data.","simplifiedExplanation":"“Check ignition” means checking the car’s spark/ignition system to see if it’s working. If the ignition isn’t right, the engine may misfire or not start, so it’s a good place to look early."}},{"startTime":925.5,"endTime":927.0,"type":"term","title":"pull a fuse","url":"/glossary/pull-a-fuse","quote":"[921.1s] that can be another area that could be fairly quickly accessed.\n[925.5s] Maybe you could pull a fuse,\n[927.0s] you can look at all the coils on that one circuit.","canonicalId":"term:pull-a-fuse","priority":0.5,"confidence":0.85,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Pull a fuse” is a diagnostic step where a technician removes a fuse to confirm whether that fuse is supplying power to a circuit. It’s used to narrow down electrical faults—especially when multiple components share the same fuse.","simplifiedExplanation":"“Pull a fuse” means removing a fuse to see if that circuit is the problem. If the fuse is bad or the circuit isn’t getting power, it helps point you to the right area to test next."}},{"startTime":938.7,"endTime":940.6,"type":"term","title":"fuses","url":"/glossary/fuses","quote":"[936.6s] if everything is good or bad.\n[938.7s] And of course, check what fuses too.\n[940.6s] I mean, I think you just mentioned that.","canonicalId":"term:fuses","priority":0.4,"confidence":0.85,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"Fuses protect electrical circuits by blowing when current is too high, preventing wiring and components from overheating or shorting. In diagnostics, checking fuses helps confirm whether a circuit has power before testing downstream parts.","simplifiedExplanation":"Fuses are safety devices in the car’s wiring. If a circuit has a problem, the fuse may blow, so checking fuses can quickly tell you whether power is reaching the components you’re trying to test."}},{"startTime":957.8,"endTime":959.5,"type":"brand","title":"NAPA AutoCare","url":"/glossary/napa-autocare","quote":"[951.7s] To keep your shop competitive,\n[953.1s] your technicians need training that's smarter,\n[955.5s] faster, and future focused.\n[957.8s] That's why NAPA AutoCare is excited\n[959.5s] to introduce three new auto tech initiatives,","canonicalId":"brand:napa-autocare","priority":0.25,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"NAPA AutoCare is a NAPA-branded program focused on technician training and shop support. In this segment, it’s used as the source of new diagnostic/training initiatives like fast track assessments and tech assist.","simplifiedExplanation":"NAPA AutoCare is a NAPA program that supports auto repair shops and technicians. Here, it’s mentioned as offering new training initiatives to help shops diagnose cars better and faster."}},{"startTime":962.4,"endTime":963.9,"type":"topic","title":"fast track assessments","url":"/glossary/fast-track-assessments","quote":"[957.8s] That's why NAPA AutoCare is excited\n[959.5s] to introduce three new auto tech initiatives,\n[962.4s] fast track assessments,\n[963.9s] the accelerator training program, and tech assist.","canonicalId":"topic:fast-track-assessments","priority":0.35,"confidence":0.75,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Fast track assessments” is presented as a shop training/diagnostic initiative aimed at speeding up how technicians evaluate a vehicle’s condition. The episode frames it as part of a broader effort to improve diagnostic speed and accuracy.","simplifiedExplanation":"“Fast track assessments” sounds like a quicker, structured way to evaluate a car’s problem. The goal is to help technicians figure things out faster and more accurately."}},{"startTime":1124.5,"endTime":1131.3,"type":"term","title":"scan tools","url":"/glossary/scan-tools","quote":"[1124.5s] Are we, as an industry, we've got scan tools\n[1128.1s] inside the shop and the owner buys them?","canonicalId":"term:scan-tools","priority":0.55,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Scan tools” are diagnostic devices shops use to communicate with a car’s onboard computer. They read trouble codes and live sensor data so technicians can narrow down what’s causing a check-engine light or drivability issue.","simplifiedExplanation":"A scan tool is a device a mechanic plugs into the car. It can pull up error codes and show sensor readings so the technician can figure out what’s wrong."}},{"startTime":1140.5,"endTime":1147.5,"type":"concept","title":"data interpretation class","url":"/glossary/data-interpretation-class","quote":"[1140.5s] In my opinion, I wish there were more data\n[1145.5s] interpretation class.\n[1147.5s] And what I mean by that, how to interpret the data","canonicalId":"concept:data-interpretation-class","priority":0.6,"confidence":0.85,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"A “data interpretation” class focuses on turning diagnostic readings (like sensor values and scan-tool data) into a diagnosis. Instead of just collecting data, it teaches technicians how to interpret patterns and challenge their conclusions.","simplifiedExplanation":"This is training on how to understand the numbers the car is sending. The goal is to help technicians not just look at data, but use it to make the right diagnosis."}},{"startTime":1155.6,"endTime":1161.7,"type":"term","title":"MAP sensor","url":"/glossary/map-sensor","quote":"[1155.6s] One question I always pose in my classes,\n[1158.9s] looking at a map sensor, MAP sensor.\n[1161.7s]  Yeah.","canonicalId":"term:map-sensor","priority":0.75,"confidence":0.95,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"The MAP sensor (Manifold Absolute Pressure sensor) measures the pressure in the intake manifold. Engine control modules use it to calculate airflow and load, which affects fuel delivery and ignition timing—so interpreting its readings correctly is key to diagnosing drivability problems.","simplifiedExplanation":"The MAP sensor tells the car how much air pressure is in the engine’s intake. The computer uses that information to decide how much fuel to inject, so wrong readings can point to the real cause of a problem."}},{"startTime":1167.1,"endTime":1174.0,"type":"term","title":"inches of mercury","url":"/glossary/inches-of-mercury","quote":"it literally says 10 inches of mercury. Well, right away, the technician in many cases will go off the scales.","canonicalId":"term:inches-of-mercury","priority":0.8,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Inches of mercury” (inHg) is a pressure unit commonly used for engine vacuum and intake manifold pressure readings. Because it depends on local atmospheric pressure, the same engine can show different inHg values in different cities, so technicians must interpret scan data in context.","simplifiedExplanation":"Inches of mercury (inHg) is a unit used to describe pressure/vacuum. Where you live changes the baseline air pressure, so the “normal” number on a scan tool can shift."}},{"startTime":1199.2,"endTime":1230.7,"type":"concept","title":"engine vacuum","url":"/glossary/engine-vacuum","quote":"And then we're going to let that equal engine vacuum. Let's for a moment pretend we have a perfect vacuum. And we'll use 30 inches of mercury.","canonicalId":"concept:engine-vacuum","priority":0.7,"confidence":0.85,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"Engine vacuum is the negative pressure created by the engine’s intake process, and it’s a key diagnostic indicator for things like intake leaks, throttle/valve behavior, and overall engine health. This segment explains how to compute expected vacuum from atmospheric pressure and MAP sensor data, then compare it to what the scan tool shows.","simplifiedExplanation":"Engine vacuum is the “suction” the engine creates in the intake system. If the vacuum number is off, it can point to an airflow or intake problem, so the mechanic uses sensor data to check whether it makes sense."}},{"startTime":1302.5,"endTime":1306.5,"type":"term","title":"engine mechanical analysis","url":"/glossary/engine-mechanical-analysis","quote":"with more concentration on engine mechanical analysis, ignition, fuel systems, definitely","canonicalId":"term:engine-mechanical-analysis","priority":0.6,"confidence":0.75,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"Engine mechanical analysis focuses on diagnosing the engine’s physical health—how well internal components are working—using test data and measurements. In a modern shop, this often pairs mechanical checks with electrical waveform testing to separate mechanical faults from sensor/ignition/fuel issues.","simplifiedExplanation":"This is diagnosing the engine’s real mechanical condition, like whether something inside the engine is worn or not working right. It’s about confirming what’s happening in the engine, not just reading codes."}},{"startTime":1306.5,"endTime":1309.7,"type":"term","title":"fuel systems","url":"/glossary/fuel-systems","quote":"engine mechanical analysis, ignition, fuel systems, definitely","canonicalId":"term:fuel-systems","priority":0.45,"confidence":0.6,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"Fuel systems in diagnostics cover how fuel is delivered and controlled—pump/pressure regulation, injectors, and related control signals. Shops use waveform and pressure/flow checks to determine whether drivability issues come from fuel delivery/control rather than ignition or mechanical problems.","simplifiedExplanation":"Fuel system is how the car delivers fuel to the engine. If fuel pressure or injector behavior is off, the engine can hesitate, misfire, or lose power."}},{"startTime":1309.7,"endTime":1314.0,"type":"term","title":"communications","url":"/glossary/communications","quote":"ignition, fuel systems, definitely what they call communications. Because communication interpretation is starting to change dramatically.","canonicalId":"term:communications","priority":0.7,"confidence":0.85,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"In modern vehicle diagnostics, “communications” refers to how electronic control modules exchange data over vehicle networks. Understanding network messaging is increasingly important because many diagnostic clues depend on module-to-module signals rather than just standalone sensor readings.","simplifiedExplanation":"Modern cars have computers that talk to each other. “Communications” means the messages traveling between modules, and diagnostics increasingly depends on whether those messages make sense."}},{"startTime":1316.6,"endTime":1326.3,"type":"term","title":"General Motors VIP platform","url":"/glossary/general-motors-vip-platform","quote":"We did a class today here at TST on the General Motors VIP platform, which stands for Vehicle Intelligence Platform.","canonicalId":"term:general-motors-vip-platform","priority":0.75,"confidence":0.9,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"The General Motors VIP platform (Vehicle Intelligence Platform) is GM’s architecture for how vehicle modules and systems coordinate and share data. In diagnostics, it matters because faults can involve how modules communicate, not only a single sensor or component.","simplifiedExplanation":"GM’s VIP platform is GM’s way of organizing how the car’s computers share information. If the computers aren’t communicating correctly, you can get symptoms that look like a part failure but are actually a network/control issue."}},{"startTime":1411.4,"endTime":1427.4,"type":"term","title":"OTA over the air updates","url":"/glossary/ota-over-the-air-updates","quote":"[1409.9s] Because we had mentioned of something\n[1411.4s] that they call OTA over the air updates.\n[1415.4s] The average consumer, he'll get a request on the dash\n[1419.0s] or on the radio.","canonicalId":"term:ota-over-the-air-updates","priority":0.85,"confidence":0.95,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"OTA (over-the-air) updates are software updates delivered wirelessly to a car, usually via the cellular or Wi‑Fi connection. Instead of booking a visit to a dealership, the car can receive new firmware that changes how systems behave or adds features.","simplifiedExplanation":"OTA updates are “wireless updates” that your car can download on its own. Instead of going to a dealership, the car gets new software through its connection and updates itself."}},{"startTime":1433.0,"endTime":1438.8,"type":"concept","title":"programming on a consistent basis","quote":"[1427.4s] A lot of technicians, very good technicians\n[1429.9s] are concerned, well, how will this affect my business?\n[1433.0s] I do programming on a consistent basis.\n[1435.9s] Customer doesn't have to go to the dealership for any of that.","canonicalId":"concept:programming-on-a-consistent-basis","priority":0.55,"confidence":0.6,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"In this context, “programming” means updating or reconfiguring the car’s electronic control units (ECUs) with new software. Doing it consistently implies a workflow where technicians manage ongoing updates rather than treating software changes as one-off repairs.","simplifiedExplanation":"Here, “programming” means updating the car’s computer software. The idea is that shops may need a regular process for handling these updates as they come in."}},{"startTime":1448.7,"endTime":1456.6,"type":"concept","title":"keeping it current","quote":"[1445.6s] It's just going to keep it whatever current means.\n[1448.7s] Well, there's a lot to be said for keeping it current.\n[1452.6s] And for them to be able to do that over the air\n[1456.6s] as they say, I think that's a significant moving","canonicalId":"concept:keeping-it-current","priority":0.45,"confidence":0.65,"source":"hybrid-fuzzy+gpt-5.4-nano","data":{"explanation":"“Keeping it current” refers to maintaining the latest available software/firmware versions across the vehicle. While it may not fix a specific mechanical fault, newer software can improve features, diagnostics, and how systems operate."}}],"speakers":[{"id":"s1","name":"Carm Capriotto","role":"host"},{"id":"s2","name":"AAP","role":"host"}],"transcripts":[{"url":"http://getcarcurious.com/episodes/from-guesswork-to-process-modern-diagnostic-strategies-for-auto-repair-shops-rr-1093/transcript.vtt","type":"text/vtt"}]}