{"version":"1.0.0","episode":{"title":"' Service Engine Soon Light Is On - Possible Causes ( Why Diagnosis Matters) Part 2 ","url":"http://getcarcurious.com/episodes/service-engine-soon-light-is-on-possible-causes-why-diagnosis-matters-part-2","audioUrl":"https://content.rss.com/episodes/340678/2464631/car-connection-workshop/2026_01_16_21_19_02_09a005a5-2921-488b-bd26-dca21146a9a2.mp3","description":"Hs you check engine light ever come on before? Comments on our  YouTube Channel or email me.In Part 2 - the wrap - up of our dashboard warning light series, Motormouth breaks down why the service engine soon light comes on and the many possible causes modern vehicles monitor every time you turn the key. Today's vehicles are constantly watched by the engine control module (ECM) - the main brain tracking vital signs like fuel delivery, ignition, emissions, airflow, sensor performance, and system communication. And that's just the beginning.This episode explains:1) What the ECM actually monitors ( and why it matters)2) Why a cheap code reader only scratches the surface3) The difference between possible causes vs. probable causes4) How multiple systems can trigger the same warning light5) Why \"parts cannon\" repairs leave wallets empty and lights still on 6) When emotions rise, intelligence drops- and mistakes get expensiveIf diagnosis was as simple as plugging into the ALDL port, this would be easy. But real-world automotive repair requires testing, data interpretation, and experience-not guesswork.This episode closes the loop on \" What Does That Dashboard Light Really Mean?\" and arms drivers with the knowledge to make better repair decisions before money, time, and patience run out.More episodes and ... project details & links are available at Car Connection Business Network .com (ccbusnet.com) you'll find everything you'd like to follow the build/repair work we do & connect with our program partners, just click their logo to connect Thank You! Grab some Motormouth Merch and know you are helping those struggling with addictions get the help they need at Total Freedom  Campuses Canada & USA. Tnx for watching & Listening Friends, Happy Healthy Motoring, Nile Motormouth Jenkins NMJ Peace, Patience, Kindness Always.What does a MAF on your vehicle do? Tell us! "},"annotations":[{"startTime":708.1,"endTime":714.9,"type":"term","title":"check engine light","url":"/glossary/check-engine-light","quote":"...service engine soon light, check engine light, the money light. The fear always seems to kick into absolute 100% high gear when that light...","canonicalId":"term:check-engine-light","priority":0.9,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The check engine light is a warning indicator on a vehicle's dashboard that signals a potential issue with the engine or emissions system. It can indicate anything from a loose gas cap to more serious engine problems, prompting the driver to seek diagnostics.","simplifiedExplanation":"The check engine light is a warning light in your car that tells you something might be wrong with the engine. If it lights up, it's a good idea to have it checked out by a mechanic."}},{"startTime":760.2,"endTime":767.8,"type":"term","title":"diagnose","url":"/glossary/diagnose","quote":"...that you trust that has the technicians and the equipment to diagnose that check engine light because there's text that can and then there's auto service text that get out the parts cannon...","canonicalId":"term:diagnose","priority":0.5,"confidence":0.85,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"To diagnose a vehicle means to identify the cause of a problem using various tools and techniques. Proper diagnosis is crucial for effective repairs and can save time and money.","simplifiedExplanation":"Diagnosing a car means figuring out what’s wrong with it. Mechanics use tools and tests to find out the problem so they can fix it correctly."}},{"startTime":1155.0,"endTime":1160.8,"type":"part","title":"tire machine","url":"/glossary/tire-machine","quote":"I mean, it's an asset, same as the tire machine. It can be five, six years old, 10 years old, if it's in good shape, a turntable version that will easily fit into the shop here.","canonicalId":"part:tire-machine","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"A tire machine is a specialized piece of equipment used in automotive shops to mount and dismount tires from wheels. It streamlines the process of changing tires, making it faster and more efficient.","simplifiedExplanation":"A tire machine helps mechanics put tires on and take them off wheels easily. It's an important tool in any tire shop."}},{"startTime":1190.0,"endTime":1196.1,"type":"term","title":"ECM","url":"/glossary/ecm","quote":"I need to toggle the ECM and some relays and things that are control units these days.","canonicalId":"term:ecm","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The ECM, or Engine Control Module, is a crucial component in modern vehicles that manages engine performance and efficiency by controlling various engine functions based on data from sensors.","simplifiedExplanation":"The ECM is like the car's brain for the engine. It helps control how the engine runs by using information from different sensors in the car."}},{"startTime":1196.1,"endTime":1201.1,"type":"term","title":"control units","url":"/glossary/control-units","quote":"I need to toggle some, I need to toggle the ECM and some relays and things that are control units these days. There's relays and then there's control units, lots of them.","canonicalId":"term:control-units","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"Control units are electronic devices in vehicles that manage various functions, such as engine performance, transmission, and safety systems. They receive input from sensors and execute commands to optimize vehicle operation.","simplifiedExplanation":"Control units are like little computers in your car that help manage different parts, like the engine and brakes, to make sure everything works well."}},{"startTime":1254.4,"endTime":1260.6,"type":"term","title":"tire pressure monitoring system","url":"/glossary/tire-pressure-monitoring-system","quote":"On most cars, they're not all equipped with tire pressure monitoring systems. So I can safely say 50-50, depends on how old your vehicle is.","canonicalId":"term:tire-pressure-monitoring-system","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"A tire pressure monitoring system (TPMS) is a safety feature in vehicles that monitors the air pressure in the tires and alerts the driver when the pressure is too low, which can affect handling and fuel efficiency.","simplifiedExplanation":"TPMS helps keep track of how much air is in your tires. If the air pressure gets too low, it warns you so you can fill them up, which is important for safe driving."}},{"startTime":1298.1,"endTime":1306.9,"type":"part","title":"catalytic converter","url":"/glossary/catalytic-converter","quote":"no muffler, no exhaust pipe, no catalytic converters, yes.","canonicalId":"part:catalytic-converter","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"A catalytic converter is an emissions control device that converts harmful gases from the engine into less harmful emissions before they exit the vehicle's exhaust system.","simplifiedExplanation":"The catalytic converter helps clean up the exhaust gases from your car so that they are less harmful to the environment."}},{"startTime":1306.9,"endTime":1310.52,"type":"part","title":"shocks","url":"/glossary/shocks","quote":"Ball joints, tie rod ends, shocks, struts, brakes,","canonicalId":"part:shocks","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"Shocks, or shock absorbers, are components of a vehicle's suspension system that dampen the impact of bumps and vibrations, providing a smoother ride and better handling.","simplifiedExplanation":"Shocks help make your ride smoother by absorbing bumps in the road, so you don't feel every little jolt while driving."}},{"startTime":1306.9,"endTime":1310.52,"type":"part","title":"ball joints","url":"/glossary/ball-joints","quote":"Ball joints, tie rod ends, shocks, struts, brakes,","canonicalId":"part:ball-joints","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"Ball joints are crucial components in a vehicle's suspension system that connect the control arms to the wheel hubs, allowing for smooth movement and stability while driving.","simplifiedExplanation":"Ball joints are parts that help your car's wheels move up and down smoothly. They are important for keeping your car stable while driving."}},{"startTime":1306.9,"endTime":1310.52,"type":"part","title":"struts","url":"/glossary/struts","quote":"Ball joints, tie rod ends, shocks, struts, brakes,","canonicalId":"part:struts","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"Struts are a type of suspension component that combines the functions of a shock absorber and a structural support, playing a key role in vehicle stability and handling.","simplifiedExplanation":"Struts help support your car's weight and also absorb bumps, making your ride more comfortable and stable."}},{"startTime":1312.7,"endTime":1317.1,"type":"part","title":"master cylinder","url":"/glossary/master-cylinder","quote":"master cylinder. Well, yeah, there's an idiot light on that master cylinder. If the pressure drops, that's when the warning light, brake warning lamp is going to come on and probably flash,","canonicalId":"part:master-cylinder","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The master cylinder is a crucial component of a vehicle's braking system. It converts the force applied to the brake pedal into hydraulic pressure, which then activates the brakes at each wheel.","simplifiedExplanation":"The master cylinder helps you stop your car. When you press the brake pedal, it pushes fluid through pipes to the brakes, making them work."}},{"startTime":1317.1,"endTime":1323.0,"type":"term","title":"ABS","url":"/glossary/abs","quote":"ABS, it's monitored. So yeah, so master cylinder, yes. Anything else? Battery?","canonicalId":"term:abs","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"ABS stands for Anti-lock Braking System. It prevents the wheels from locking up during braking, allowing the driver to maintain steering control while braking hard.","simplifiedExplanation":"ABS is a safety feature that helps your car stop without skidding. It lets you steer while you brake hard, which is important in emergencies."}},{"startTime":1633.1,"endTime":1640.5,"type":"term","title":"NOx emissions","url":"/glossary/nox-emissions","quote":"...those are what we call NOx emissions. That's the big daddy. Yeah. It's not carbon...","canonicalId":"term:nox-emissions","priority":0.9,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"NOx emissions refer to nitrogen oxides, which are harmful pollutants produced during combustion processes, particularly in vehicles. They contribute to smog and respiratory problems, making their reduction a key focus in automotive emissions regulations.","simplifiedExplanation":"NOx emissions are gases that come from car engines when they burn fuel. They can cause air pollution and health issues, so it's important to keep them low."}},{"startTime":1675.7,"endTime":1682.9,"type":"term","title":"fuel evaporated system","url":"/glossary/fuel-evaporated-system","quote":"...the fuel evaporated system is monitored from the back of the tank all the way to the engine. There cannot be any fuel vapors escaping anywhere.","canonicalId":"term:fuel-evaporated-system","priority":0.5,"confidence":0.85,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"A fuel evaporated system is designed to prevent fuel vapors from escaping into the atmosphere. It monitors the fuel system from the tank to the engine, ensuring that any vapors are contained and not released, which helps reduce emissions.","simplifiedExplanation":"The fuel evaporated system is a part of a car that makes sure no fuel vapors leak into the air. It checks the fuel from the tank to the engine to keep the environment clean."}},{"startTime":1689.42,"endTime":1695.7,"type":"term","title":"evaporative system","url":"/glossary/evaporative-system","quote":"So when an evap system code is triggered, yes, the service light comes on. And that's usually an area where a lot of parts, cannons get burned out, throwing the parts on the car, firing them onto the car.","canonicalId":"term:evaporative-system","priority":0.9,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The evaporative system is a part of a vehicle's fuel system that prevents fuel vapors from escaping into the atmosphere. It includes components like the fuel tank, fuel cap, and various valves and hoses that help capture and store these vapors.","simplifiedExplanation":"The evaporative system helps keep harmful fuel fumes from leaking into the air. It includes parts like the fuel tank and fuel cap that work together to trap these fumes."}},{"startTime":1736.1,"endTime":1743.1,"type":"part","title":"transmission","url":"/glossary/transmission","quote":"What do we hit first? Transmission. Yep. Transmission is monitored. So anything goes wrong, basically with the shift points on the automatic transmission, not so much on the manual.","canonicalId":"part:transmission","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The transmission is a crucial component of a vehicle that transfers power from the engine to the wheels. It can be automatic or manual, and issues with it can affect how smoothly the vehicle shifts gears.","simplifiedExplanation":"The transmission helps your car change gears so it can move. If something goes wrong with it, your car might not shift properly, which can trigger warning lights."}},{"startTime":1889.9,"endTime":1898.8,"type":"part","title":"oxygen sensors","url":"/glossary/oxygen-sensors","quote":"Yeah, there's two types. It's either a HEGO or an O2. Oxygen sensor.","canonicalId":"part:oxygen-sensors","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"Oxygen sensors measure the amount of oxygen in the exhaust gases and help the engine control unit adjust the air-fuel mixture for optimal combustion and emissions control.","simplifiedExplanation":"Oxygen sensors check how much oxygen is in the car's exhaust. This helps the engine run better and produce fewer harmful gases."}},{"startTime":1898.78,"endTime":1905.36,"type":"car","title":"Toyota Fj","url":"/cars/toyota/fj-cruiser","image":"https://upload.wikimedia.org/wikipedia/commons/8/86/TOYOTA_FJ_CRUISER_China_%282%29.jpg","quote":"...ely. And if you're as lucky as I am with our 2007 Toyota FJ cruiser,  it has four catalytic converters and a ...","canonicalId":"car:toyota:fj-cruiser","priority":0.5,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The Toyota FJ Cruiser is a retro-styled SUV that was produced from 2006 to 2014, designed to evoke the classic Toyota FJ40 Land Cruiser. It is known for its rugged off-road capabilities, distinctive design, and spacious interior, making it a popular choice among adventure enthusiasts. Its unique styling and practicality often lead to discussions about its place in the SUV market and its cult following.","simplifiedExplanation":"The Toyota FJ Cruiser is a tough-looking SUV that was made for off-roading and adventures. It has a cool, vintage design and is built to handle rough terrains, which makes it a favorite for people who love outdoor activities. Many people talk about it because of its unique style and how well it performs in challenging conditions.","imageAttribution":"Dinkun Chen (CC BY-SA 4.0)"}},{"startTime":1963.4,"endTime":1973.8,"type":"term","title":"coolant temperature sensor","url":"/glossary/coolant-temperature-sensor","quote":"...it's the sensor, not the sender. That gets messed up all the time. Yeah, I need a coolant temperature sensor. Why? My gauge isn't working...","canonicalId":"term:coolant-temperature-sensor","priority":0.9,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"A coolant temperature sensor measures the temperature of the engine's coolant, providing critical data to the engine control unit (ECU) for optimal performance and preventing overheating.","simplifiedExplanation":"The coolant temperature sensor checks how hot the engine's coolant is. This helps the car's computer know if the engine is running too hot and needs attention."}},{"startTime":1981.2,"endTime":1988.6,"type":"term","title":"coolant temperature sender","url":"/glossary/coolant-temperature-sender","quote":"...that would be the coolant coolant temperature sender. That's what operates the gauge or the cooling system. Idiot light that says we're overheated...","canonicalId":"term:coolant-temperature-sender","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The coolant temperature sender is a component that sends the coolant temperature reading to the vehicle's gauge or warning light, indicating the engine's temperature status to the driver.","simplifiedExplanation":"The coolant temperature sender is what tells your dashboard how hot the engine is. If it fails, you might not know if your engine is overheating."}},{"startTime":2018.6,"endTime":2023.6,"type":"term","title":"air intake temperature","url":"/glossary/air-intake-temperature","quote":"...we have evaporative system, air intake. Yes, air intake temperature.","canonicalId":"term:air-intake-temperature","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"Air intake temperature refers to the temperature of the air entering the engine. Monitoring this temperature helps the engine control module adjust fuel delivery and ignition timing for optimal performance and efficiency.","simplifiedExplanation":"Air intake temperature is how hot the air is when it goes into the engine. The car's computer checks this to make sure the engine runs well and efficiently."}},{"startTime":2082.1,"endTime":2087.1,"type":"term","title":"body control module (BCM)","url":"/glossary/body-control-module-bcm","quote":"...all controlled by a BCM, body control module. But here's the thing. It won't set a service","canonicalId":"term:body-control-module-bcm","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The body control module (BCM) is an electronic control unit that manages various electrical systems in a vehicle, such as lighting, door locks, and other accessories. It ensures these systems operate correctly and respond to user inputs.","simplifiedExplanation":"The body control module is like a control center for the car's electrical features, like locking doors and turning on lights. It helps everything work together smoothly."}},{"startTime":2101.4,"endTime":2105.0,"type":"term","title":"TPMS","url":"/glossary/tpms","quote":"So those things are called feature comforts. That's the feature comfort system. TPMS, another control unit is monitoring tire pressure...","canonicalId":"term:tpms","priority":0.9,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"TPMS stands for Tire Pressure Monitoring System. It is a safety feature that monitors the air pressure in a vehicle's tires and alerts the driver if the pressure is too low.","simplifiedExplanation":"TPMS is a system that checks if your tires have enough air. If a tire is low on air, it will let you know with a warning light."}},{"startTime":2155.1,"endTime":2162.4,"type":"term","title":"fly by wire","url":"/glossary/fly-by-wire","quote":"We also have vehicles that are fly by wire. There's no steering column per se. You have a steering wheel, but the wheels turn...","canonicalId":"term:fly-by-wire","priority":0.5,"confidence":0.85,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"Fly by wire is a technology that replaces traditional mechanical controls with electronic systems. In vehicles, this means that the steering and throttle are controlled electronically rather than through physical linkages.","simplifiedExplanation":"Fly by wire means that instead of using physical parts to control things like steering, the car uses electronic signals. It can feel different because there's no direct connection."}},{"startTime":2178.0,"endTime":2185.5,"type":"part","title":"rack and pinion steering unit","url":"/glossary/rack-and-pinion-steering-unit","quote":"...but it sensors between the steering wheel and the steering box or rack and pinion steering unit that if something goes wrong, it will flag the system and put on service light.","canonicalId":"part:rack-and-pinion-steering-unit","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The rack and pinion steering unit is a type of steering mechanism that converts the rotational motion of the steering wheel into the linear motion needed to turn the wheels. It provides precise steering control and is commonly used in modern vehicles.","simplifiedExplanation":"The rack and pinion steering unit is a system that helps you turn the steering wheel into movement for the wheels. It makes steering easier and more responsive in cars."}},{"startTime":2193.7,"endTime":2200.9,"type":"part","title":"alternator","url":"/glossary/alternator","quote":"Next, I was just thinking of another one. I want to make sure I get them all in here. Alternator. On a lot of vehicles nowadays, if the alternator is not supplying electrical charge to run all the accessories, that's what its job is.","canonicalId":"part:alternator","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"An alternator is a crucial component in a vehicle's electrical system, responsible for generating electricity to power the car's accessories while the engine is running. It converts mechanical energy from the engine into electrical energy, ensuring that the battery remains charged and the vehicle's electrical systems function properly.","simplifiedExplanation":"The alternator is like a generator in your car that produces electricity. It helps power things like the radio and lights while the engine is running, but it doesn't charge the battery directly like a battery charger does."}},{"startTime":2317.0,"endTime":2324.2,"type":"term","title":"engine misfire","url":"/glossary/engine-misfire","quote":"If we have an engine misfire, so an injector's not working or a coil over plugs, that's what we're dealing with now.","canonicalId":"term:engine-misfire","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"An engine misfire occurs when one or more cylinders fail to fire properly, leading to a rough running engine and reduced performance. It can be caused by issues such as faulty spark plugs, ignition coils, or fuel injectors.","simplifiedExplanation":"An engine misfire happens when the engine doesn't run smoothly because something is wrong, like a part not working. This can make the car feel shaky or lose power."}},{"startTime":2324.2,"endTime":2329.3,"type":"part","title":"ignition coils","url":"/glossary/ignition-coils","quote":"Instead of plug wires, we have ignition coils sitting on top of the spark plugs.","canonicalId":"part:ignition-coils","priority":0.9,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"Ignition coils are components in an ignition system that convert the battery's low voltage to the high voltage needed to create a spark at the spark plugs. They are crucial for starting the engine and ensuring it runs smoothly.","simplifiedExplanation":"Ignition coils help create the spark that ignites the fuel in the engine. Without them, the engine won't start or run properly."}},{"startTime":2329.3,"endTime":2338.5,"type":"part","title":"spark plugs","url":"/glossary/spark-plugs","quote":"Yes, in that conglomeration under the hood is and still has spark plugs.","canonicalId":"part:spark-plugs","priority":0.9,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"Spark plugs are vital components in gasoline engines that ignite the air-fuel mixture, enabling the engine to run. They need to be replaced regularly to maintain engine performance.","simplifiedExplanation":"Spark plugs create the spark that makes the engine run. They need to be changed regularly to keep the engine working well."}},{"startTime":2371.5,"endTime":2381.1,"type":"term","title":"SRS (Safety Restraint System)","url":"/glossary/srs-safety-restraint-system","quote":"Yeah, airbag light, separate control unit. It's not the ECM. That would be the SRS, safety restraining system, airbag system, and computer that's monitoring all of that.","canonicalId":"term:srs-safety-restraint-system","priority":0.5,"confidence":0.9,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The Safety Restraint System (SRS) refers to the components in a vehicle designed to protect occupants during a crash, including airbags and seatbelt pretensioners. It is monitored by a dedicated control unit.","simplifiedExplanation":"The SRS is the system in your car that helps keep you safe in an accident, mainly through airbags and seatbelts that tighten up. It has its own computer to monitor everything."}},{"startTime":2854.7,"endTime":2860.5,"type":"term","title":"service light","url":"/glossary/service-light","quote":"...service light and stop calling it the money light. Vehicles are trying to communicate with us...","canonicalId":"term:service-light","priority":0.5,"confidence":0.85,"source":"hybrid-fuzzy+gpt-4o-mini","data":{"explanation":"The service light is an indicator that prompts the driver to schedule maintenance or service for the vehicle. It may signal routine maintenance needs, such as oil changes or inspections, and is part of the vehicle's onboard diagnostic system.","simplifiedExplanation":"The service light is another light on your dashboard that reminds you to take your car in for maintenance, like an oil change. It's important to pay attention to this light to keep your car running well."}}],"speakers":[{"id":"s1","name":"Nile Jenkins","role":"host"}],"transcripts":[{"url":"http://getcarcurious.com/episodes/service-engine-soon-light-is-on-possible-causes-why-diagnosis-matters-part-2/transcript.vtt","type":"text/vtt"}]}