353: (Throwback) Be Brave Enough To Suck At Something New With Justin Morgan
Automotive Diagnostic Podcast
Automotive Diagnostic Podcast May 24, 2026
353: (Throwback) Be Brave Enough To Suck At Something New With Justin Morgan

353: (Throwback) Be Brave Enough To Suck At Something New With Justin Morgan

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68:25
353: (Throwback) Be Brave Enough To Suck At Something New With Justin Morgan
Brand

Phoenix Smart

Phoenix Smart is a diagnostic tool model the host recommends. They use it for things like programming and troubleshooting cars, and they say it’s a good value.

Brand

Phoenix Plus

Phoenix Plus is a specific diagnostic tool model the host uses. They mention it as the older version of a newer tool, Phoenix Smart.

Term

programming

Here, “programming” means using the scan tool to update or set up the car’s electronic modules. Shops do this after repairs or when parts are replaced so the car can recognize and use them properly.

Term

diagnostics

In this context, “diagnostics” means troubleshooting a car using a scan tool and tests. The goal is to figure out what’s causing the problem, not just guess.

Term

scan tool

A scan tool is a device that plugs into the car to talk to its computer. It can show error codes and sensor readings, but you still have to figure out what the codes really mean.

Brand

snap on

Snap-on is a popular brand of automotive tools. The host is saying some shops only want Snap-on, but he thinks other tools can be better value.

Concept

independent repair shop

An independent repair shop is a regular mechanic shop that isn’t a dealership. The speaker is saying that switching to that kind of shop let them focus on certain brands instead of being tied to a corporate setup.

Brand

BMW

BMW is a German car brand. Here, the speaker is saying they ended up working on mostly BMWs for years, which is different from many repair shops that handle lots of different brands.

Concept

aftermarket world

The aftermarket is everything that happens after a car is already sold—like independent repair shops and parts sellers. The speaker is saying most shops don’t specialize in just one brand like BMW.

Topic

public auto auctions

Public auto auctions are places where cars are sold by bidding. The speaker is saying that if you don’t have one nearby, you might not realize how rough some of the auction cars can be.

Concept

wholesale auction

A wholesale auction is where cars are sold in bulk to buyers like dealers or other businesses. The speaker is saying that cars coming from these auctions can be in rough shape, which affects what shops deal with.

Term

tech support

Here, “tech support” means getting help from someone who knows how to diagnose car problems. It’s not just fixing the car—it’s figuring out what’s causing the issue.

Company

auto logic

The speaker is name-dropping a company that does automotive tech support. They’re using it to say, “people who do this for a living think the same way.”

Person

Perkins

Perkins is a person the speaker mentions as having experience with automotive tech support. They’re basically saying, “even someone else who does this agrees with me.”

Term

diagnose

To diagnose means to figure out what’s really wrong with the car, not just what it seems like. It’s about using clues from tests and symptoms to find the cause.

Term

compression test

A compression test checks how well each cylinder in an engine is sealed and how much pressure it builds. If one cylinder is much lower than the others, it can point to an internal engine problem.

Term

misfire

A misfire is when a cylinder doesn’t properly burn the fuel-air mix. It can cause rough running, hesitation, and warning lights, and the engine’s computer can usually detect it.

Term

test plan

A test plan is a step-by-step diagnostic procedure the manufacturer defines. It tells you what to measure and what numbers are considered acceptable.

Term

IMib

IMib is BMW’s special diagnostic connection box/interface. It helps the technician hook up advanced test equipment to the car so the factory tests can read the right signals.

Term

two channel scope

A two-channel scope is a tool that shows electrical signals on a screen, two at once. It’s useful for seeing timing and relationships between different signals while diagnosing problems.

Term

cylinders

A cylinder is one of the engine’s combustion chambers. In a compression test, you measure each cylinder and compare them—if one is much lower, it points to a problem in that cylinder.

Term

timing problem

Timing is when the engine’s spark and valve events happen during each cycle. If timing is wrong, the engine can misfire or run poorly because the cylinder isn’t doing the right things at the right time.

Term

testing's done

In diagnostics, “testing’s done” refers to the specific measurements and test results that prove (or disprove) a hypothesis. The speaker notes a challenge when you can’t see how the testing was performed, because you may not get the exact results you need to continue troubleshooting.

Company

Identifix

Identifix is a service that helps mechanics diagnose car problems. Instead of just telling you the answer, they help you follow a step-by-step process so you know what to check next.

Term

hotline service

A hotline service is like calling an expert when you’re stuck diagnosing a car. They usually tell you what to check next and how to think through it, not just what part to replace.

Concept

diagnostic process

A diagnostic process is a step-by-step way to figure out what’s wrong with a car. The idea is to test and confirm the right clues in order, so you don’t jump to conclusions.

Term

three wire sensor

A three-wire sensor has three wires that do different jobs: power, ground, and a signal that tells the car what it’s measuring. If one of those parts is wrong, the sensor can’t work correctly, so checking the wiring is a key diagnostic step.

Term

evap problem

EVAP is the system that keeps fuel vapors from escaping into the air. If there’s an “EVAP problem,” it usually means the car isn’t capturing or controlling those vapors correctly.

Term

fuel tank pressure

The car measures how much pressure is inside the fuel tank. That helps it verify the EVAP system is working; if the pressure doesn’t behave as expected, something in the venting/valve/sensor part of the system is likely wrong.

Term

pressure sensor

This sensor tells the car what the fuel tank pressure is. If the readings don’t change when the car commands the system to vent, the sensor or the valve controlling the vent is probably the problem.

Term

valve

EVAP valves are the “switches” that open and close paths for fuel vapors. If opening the vent doesn’t change tank pressure, the valve may be stuck or not working.

Concept

diagnosis by exclusion

This is when you troubleshoot by ruling things out—checking the most common causes first, then narrowing down. It’s not always the fastest method, but it’s often what you have to do when you can’t test everything directly.

Term

brake caliper

The brake caliper is the part that squeezes the brake pads onto the spinning brake disc. If it’s installed wrong (like upside down), it can cause problems like poor bleeding or the brakes not working correctly.

Term

bleeder screws

Bleeder screws are small valves you open to let air out of the brake system. If you don’t notice where they are (or the caliper is installed wrong), bleeding can be confusing or ineffective.

Term

Pico seven

Pico seven is a special diagnostic tool that lets a mechanic “watch” electrical signals in a car. Instead of guessing, you can see what the sensor is doing on a screen.

Term

scoping

“Scoping” means using a tool to look at the electrical signal from a sensor. It helps you see problems that aren’t obvious with simple checks.

Term

active crank shaft sensors

“Active crank shaft sensors” are crankshaft position sensors that generate a signal using active electronics (rather than relying purely on passive magnetic induction). They’re used to provide precise engine timing information for ignition and fuel control.

Term

active two wire magneto resistive sensors for wheel speed

These are wheel-speed sensors that measure how fast each wheel is turning. They help systems like ABS and traction control know what the wheels are doing.

Term

Flexray

FlexRay is a “data network” inside the car that lets computers talk to each other quickly and reliably. It’s used when timing is important for control systems.

Term

three phase motors

A three-phase motor is an electric motor that uses three electrical “channels” to spin smoothly. Cars use them in various electric systems because they’re efficient.

Term

plug-in hybrids

Plug-in hybrids are cars that use both gas and electricity, and you can charge them by plugging them in. Because they slow down using the electric system sometimes, the brakes may not get used normally and can need extra attention.

Term

regenerative braking

Regenerative braking is when the car uses its electric motor to slow down and recharge the battery at the same time. Since it can reduce how much you rely on the brake pads and rotors, the brakes can get neglected and start sticking if you don’t service them.

Part

calipers

Brake calipers are the parts that squeeze the brake pads against the rotors to slow the car down. If they don’t get serviced—especially on cars that use regenerative braking—a caliper can stick and stop working smoothly.

Brand

Porsche

Porsche is used as another example of a car brand that has adopted this engine technology. The takeaway is that it’s no longer limited to one manufacturer.

Brand

Nissan

Nissan is mentioned as another example of a brand using this engine technology. The host is saying it’s become standard across the industry.

Brand

infinity

“Infinity” is likely referring to Infiniti, another car brand. The host is listing brands that now use the same kind of engine valve technology.

Term

ASC tests

“ASC tests” sounds like a kind of certification or skills test for technicians. The speaker is saying they take it for learning/keeping up, not to claim they’re already an expert.

BMW diesel
Car

BMW diesel

BMW diesels use exhaust-cleaning systems to meet emissions rules. If something goes wrong, the fix often involves checking the SCR system and related parts.

Term

SCR lockdown

An SCR lockdown is when the car limits performance or changes behavior to protect the emissions system. It usually happens when the car thinks the exhaust-cleaning system isn’t working right.

Term

emissions systems

Emissions systems are the set of components and controls that reduce pollutants from the exhaust. On modern diesels, this can include SCR, sensors, and engine/ECU logic that determines when and how the system should operate.

Term

ASEs

ASEs are professional certifications for mechanics. They’re tests that show you know how to diagnose and repair different kinds of car problems.

Term

ASE certifications

ASE is a well-known testing program for auto mechanics. If someone has ASE certifications, it means they passed official exams that prove they know how to diagnose and repair cars.

Term

manual drivetrain and transaxle

The drivetrain is everything that sends power from the engine to the wheels. A transaxle is a combined transmission-and-axle unit, often found on front-wheel-drive cars, and it can be tricky to diagnose because it affects both shifting and wheel power.

Term

clutches

In a manual car, the clutch is what lets you smoothly switch between driving and shifting gears. If it wears out, the car can feel jerky or slip, so mechanics replace it.

Term

axles and axle seals

Axles are the parts that send power to the wheels. Axle seals are the seals that keep the transmission or differential fluid from leaking out where the axle goes through the housing.

Term

manual transmissions

A manual transmission is the kind of car where you shift gears yourself. It uses a clutch to change gears, and repairs can involve internal mechanical parts, not just sensors.

Term

difffs

A differential (often called a “diff”) is what lets the wheels spin at different speeds when you turn. It’s part of the drivetrain, and fixing one usually requires specialized mechanical work.

Term

automatic trans

An automatic transmission shifts gears by itself. The way it’s diagnosed and repaired can be different from a manual transmission because it relies on control systems and internal hydraulics.

Term

park and four neutrals

That phrase describes a transmission that won’t properly engage the selected gears. Instead of driving in the right gear, it behaves like it’s in neutral. When that happens repeatedly, it strongly suggests something internal is failing or not being controlled correctly.

Term

Teflon ceiling rings

These are small sealing parts inside the automatic transmission that help keep transmission fluid pressure where it needs to be. If they wear out or leak, the transmission can’t apply the right gear. The speaker is saying pressure loss suggests the seals (rings) may be the problem.

Term

intermediate shaft

The intermediate shaft is a moving part inside the automatic transmission that helps carry power and support the parts that make gears happen. If seals on it leak, the transmission may not build enough pressure to shift correctly. That can show up during specific shifts like 1–2.

Term

pressure loss

Automatic transmissions shift using pressurized fluid. If the pressure drops (pressure loss), the transmission can’t clamp the right gear parts together. That often leads to slipping or the wrong gear being selected.

Term

drums

Drums are part of the automatic transmission that help the clutches/bands grab and hold for a given gear. If a drum is cracked, it can’t apply correctly. That can cause the transmission to act up in specific shifts.

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