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The Automotive Advice Experts You Trust To Keep Your Car Going

The Automotive Advice Experts You Trust To Keep Your Car Going

Under The Hood show May 06, 2026 51 min
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About this episode

The hosts move through a string of practical repair calls, from a GM swap with a dead transmission computer to a Chevy pickup parking pawl problem and a Silverado that seems to be losing fluid into the transfer case. They also cover flex-fuel advice, a Ford Explorer no-crank tied to anti-theft, a likely failing fuel pump on an F-150, and a Chevy Sonic with broader electrical and communication trouble. The episode closes with thoughts on collector-car insurance, Ram transmission repair, and Tesla’s self-driving subscription.

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Technical Too Afraid to Ask
Car

Chevrolet Bel

"Yep. Go ahead, Tay. Yes, I have a 65 Chevrolet Bel Air that I have changed the engine and transmiss..."

The Chevrolet Bel Air is a classic car, and the podcast talks about a 1965 model. The owner says they changed the engine and transmission, which means the car isn’t exactly like it was from the factory. That can change how you maintain it and fix problems.

Term

program stuff

"And I talked to one of my buddies that this is all he does is program stuff. And he said that the batteries were dead."

“Program stuff” means setting up the car’s electronics so they work together. If you install the wrong computer or it loses its settings, it may need to be reprogrammed.

Term

batteries were dead

"And he said that the batteries were dead. And he said, evidently, you turn the key on and it wiped out the transmission computer."

If the battery is dead, the car’s computers can lose power and sometimes lose their settings. In this story, that’s blamed for the transmission computer not working afterward.

Company

GM

"...with the ever GM model of everything. ... you can replace that. And it's replaceable with pretty much any GM transmission computer that looks like that physically there."

GM is the car company being referenced. They’re saying some GM cars use transmission computers that can be swapped if they look the same and connect the same way.

Term

TCM

"And when you go into the transmission computer, just no connection. ... So that has a separate transmission computer."

TCM means the transmission control module. It’s the part that controls shifting, and if it’s not working right, the car may shift poorly.

Term

transmission computer

"And when you go into the transmission computer, just no connection. ... So that has a separate transmission computer. And then the main box under the hood, right?"

The transmission computer is like the transmission’s “brain.” It decides when to shift and how smoothly it should shift based on what the car is doing.

Term

six liter engine

"...it's a, it's a six liter Cadillac engine, isn't it? ... Yes."

“Six liter” means the engine is about 6.0 liters in size. Bigger engines usually make more pulling power, and swaps may require matching the right electronics.

Term

engine computer

"So if you can communicate with the engine computer, but not the transmission computer, the first thing I would do... Because when your scanner inside plugs in and it goes to the engine computer first"

Your car has a computer that controls the engine. When a mechanic plugs in a scanner, it often talks to the engine computer first to see what’s working and what isn’t.

Term

communication wires

"make sure those two communication wires are hooked up that go from the engine computer to that... and then it comes out of that and goes to the transmission module."

The car’s computers talk to each other through wires. If one computer can’t “hear” the other, the wires connecting them may be damaged or unplugged.

Term

power and ground

"they'll want to check power and ground at that module and make sure those two communication wires are hooked up"

Every car module needs electricity and a good electrical connection back to the chassis. If it can’t communicate, mechanics check that it’s getting power and that its ground connection is solid.

Term

brick

"they call them brick. They just lock up when they get a power fluctuation sometimes like that."

“Brick” is a slang way of saying a car computer has died or locked up. When it happens, it may stop communicating with the scanner until it’s fixed or replaced.

Car

Cadillac Escalade

"...imes like that. We've had that in cars and those escalades and things. They were all together and Silverado..."

The Cadillac Escalade is a large luxury SUV. The podcast mentions it alongside other vehicles, which usually means they’re talking about similar problems or repairs. It’s the kind of vehicle people bring up when discussing issues that can happen across many big vehicles.

Term

jumpstart

"They were all together and Silverados, if the battery was dead and the customer tried to jumpstart it, then they, it wouldn't shift afterwards."

A jumpstart is when you use another battery to get a dead car started. If the car’s computers don’t like what happened during the jump, they can act weird afterward.

Concept

module communication failure

"They couldn't get it to communicate. And we just plug in a new transmission computer and it was good."

“Communication failure” means the car’s computers aren’t able to talk to each other. If the transmission computer can’t communicate, the transmission may not shift until the problem is fixed.

Term

wiring harness

"It came with a, it came with the transmission computer engine, computer wiring harness, these locks and all of that wire to the transmission."

A wiring harness is the set of wires that connects the car’s computers and parts. If the harness is damaged, the new computer may still not work because the signals can’t get through.

Term

transmission control module

"That transmission control module is probably the same as any like, I think 05, 6, 4, GM, truck, Escalade. It'll have a part number on it too."

The transmission control module is the specific computer that controls the automatic transmission. If you replace it, you usually need the right one—often found by matching the part number.

Term

rodent damage

"But I would definitely be checking for some potential rodent damage if that was the case. A little bit of wire damage there."

Rodents can chew through car wiring. If the wires get damaged, the car’s computers may stop working correctly, so it’s worth checking the wiring for bite marks.

Term

transmission pan

"[637.7s] And I was wondering if you got to pull a transmission to fix the pin, [641.0s] or can you get through the pan?"

The transmission pan is the bottom part of the automatic transmission that contains the fluid. If a repair needs parts inside, mechanics may have to remove this pan to get access.

Term

park pall

"[644.8s] The park pall doesn't hold on the drum, right? [648.0s] Yeah."

They’re likely talking about the parking pawl—the part that locks the transmission when you put the car in Park. If it won’t hold on a hill, that locking part may be worn or not engaging correctly.

Term

valve body

"[648.3s] So you'll have to pull the transmission pan off and you'll have to pull the valve body [652.8s] out to get into that."

The valve body is like the control hub inside an automatic transmission that directs fluid to the parts that make the transmission shift and hold. If something isn’t holding properly, it may require getting to this area.

Term

automatic transmission

"I think I've done one or two park palls in that style transmission. But that comes from people, you know, people like, well, how does that park not hold on a vehicle?"

An automatic transmission is the kind of gearbox where you don’t have to shift gears yourself. When you put it in Park, it uses a locking mechanism to help stop the car from rolling.

Term

park pawl

"I think I've done one or two park palls in that style transmission. ... Well, a lot of people on older cars, they were weaker. But if you were on a steep hill... and you didn't use the regular parking brake, that's what they were for. They would just overcome that and you would hear them ratchet, click, click... Or sometimes a new driver throw into park while it was still rolling."

When you put an automatic car in Park, a small metal piece called the park pawl locks the drivetrain so the car can’t roll. It’s not meant to take abuse—like if the car is still moving when you shift into Park, especially on a hill.

Term

parking brake

"But if you were on a steep hill, you had a trailer behind it or something, and you didn't use the regular parking brake, that's what they were for."

The parking brake is the extra brake you use to keep the car from rolling when it’s parked. On a hill, it’s better to use this than to depend on the car’s “Park” lock.

Car

Ford Flex

"...a 2013 Chrysler Counting Country minivan that's a flex fuel vehicle, but I've never ran a drop of E85 i..."

The Ford Flex is a crossover-style vehicle. Some vehicles like this can be made to use different fuel types, including ethanol blends. The podcast is talking about whether the car is set up to run E85, which matters for how it performs and whether it’s safe to use.

Term

flex fuel vehicle

"I have a 2013 Chrysler Counting Country minivan that's a flex fuel vehicle, but I've never ran a drop of E85 in it. Okay."

A flex-fuel vehicle can use more than one type of fuel. In this case, it’s usually gasoline or E85, which is a blend with lots of ethanol. The car is built to adjust to whichever fuel you put in.

Term

E85

"I have a 2013 Chrysler Counting Country minivan that's a flex fuel vehicle, but I've never ran a drop of E85 in it. Okay. And now."

E85 is a fuel blend with mostly ethanol (85%) mixed with some regular gasoline. It can change how far you get per tank, because it contains less energy than pure gasoline. The car may still run fine since it’s designed for it.

Term

BTU

"...you're going to lose a lot of fuel miles per gallon by putting 85 in there because it's just not... the way it's going to run because of the, the BTU coming out of that fuel percentage... So it's a more BTU. So it's going to, it's going to keep your mileage up."

BTU is a way to measure how much energy is in the fuel. If the fuel has fewer BTUs per gallon, you usually have to use more of it to go the same distance.

Term

E30

"Normally you'd run E30 because that's going to be the lowest price... My car, when I run premium 91 octane or I run E30, I get exactly the same miles per gallon... And when I put E30 in and I pay $2 and 30 cents for it..."

E30 means the fuel is roughly 30% ethanol and 70% gasoline. It can be cheaper than pure gasoline, but it may still reduce your miles per gallon a bit.

Car

BMW E30

"...by running the E85 right now. Normally you'd run E30 because that's going to be the lowest price. And..."

The BMW 3 Series is a smaller luxury car that’s designed to drive well. The podcast mentions using different types of fuel blends, like E30 or E85, which can change how the engine runs. That matters because not every car is set up to use every fuel blend safely.

Term

flex fuel car or truck

"fill it all the way up with any flex fuel car or truck. [949.1s] You want to run that tank very low and then completely fill it"

A flex-fuel vehicle can run on different fuel blends, including E85. The car adjusts how much fuel it injects so it can handle the higher-ethanol mix.

Term

oil change interval

"don't be going with really long oil changes. If you're somebody that changes it at 5 or 6,000... But three months, 3,000 is very important on this"

An oil change interval is how often you change your engine oil. They’re saying don’t stretch it out too long—especially with E85—because it can lead to more contamination in the oil.

Term

unburned fuel

"because you will get some of the unburned fuel in the oil system."

Unburned fuel is fuel that didn’t fully burn in the engine. If that happens, it can mix with the engine oil and make the oil less effective, so you may need more frequent oil changes.

Term

fuel gauge

"The gas fuel gauge is going to be dropping a lot faster than what he's used to. Does that help you out there, Al?"

The fuel gauge is the dashboard light/reading that tells you how much gas is left. With E85, you may burn through it faster, so the gauge can fall quicker than you’re used to.

Term

fuel injector cleaner

"Well, when you're running that much alcohol in there, you are running a massive fuel injector cleaner through there. It will clean everything out."

Fuel injector cleaner is a chemical additive that helps clean the parts that spray fuel into the engine. The idea here is that E85 can also have a cleaning effect, which might make things better—or sometimes temporarily cause weird behavior if it loosens buildup.

Term

octane

"because the racers there know they can purchase it there and they know what they're getting to put in their car as far as octane-wise. And then they tune the car according to the in that case. It wouldn't run on 40%."

Octane is basically how “knock-resistant” a fuel is. If the fuel can resist knocking, the engine can often be tuned to run more aggressively without damage.

Term

tune the car

"And then they tune the car according to the in that case. It wouldn't run on 40%. So they don't want to, you know, no crapshoot. They want to know for sure."

“Tune the car” means changing the car’s computer settings so the engine runs correctly with the fuel you’re using. Different fuels need different settings to burn cleanly and safely.

Term

fuel mile

"But yeah, with yours, I think, you know, you can run it. But I would, if you've got it available in your area, I would try E30 and see if that gets you the price you want with the fuel mile that you want."

They’re talking about how efficiently the car uses fuel—how many miles you get for the amount you buy. With ethanol blends, that efficiency can change.

Term

diesel engine

"It's great in a diesel engine in warmer climate, but boy, it just... You know, it looks like a can of Crisco."

A diesel engine is a type of engine that runs by compressing air until it’s hot, then injecting fuel. Because it works differently than a gasoline engine, it can behave differently in cold weather.

Term

additives

"So that... It does that in your vehicle when it gets cold out. So you've got to have additives and stuff in there to..."

Additives are extra chemicals you put into fuel to help it work better—especially when it’s cold. They can help prevent fuel from behaving badly and keep the engine running smoothly.

Car

Ford Explorer

"...can we do for you guys? Well, I have a 1998 Ford Explorer SLT with a 5.0 in it. At first, it stopped like ..."

The Ford Explorer is a family-sized SUV. The podcast mentions a 1998 Explorer that has had an engine change, which can make it act differently than a stock one. That’s important when diagnosing problems like sudden stopping or starting issues.

Part

fuel pump

"At first, it stopped like the fuel pump. There was no fuel coming to the..."

The fuel pump sends gas from the tank to the engine. If it’s not working, the engine may crank but won’t start because it isn’t getting fuel.

Part

neutral safety switch

"And I replaced the PVC. I replaced the neutral safety switch. And now I am not getting nothing. There's not turning over at all."

This switch is a safety feature that stops the starter from working unless the car is in the right gear. If it’s wrong, the engine might not crank when you turn the key.

Term

PVC

"And I replaced the PVC. I replaced the neutral safety switch. And now I am not getting nothing."

This is related to a valve that helps manage engine crankcase vapors. If it’s stuck or failing, it can cause weird running problems, so people replace it while diagnosing.

Term

anti-theft system

"It's like the anti-tap or whatever it is. But it does flash and flashes all the time... Something's wrong with that anti-theft system then if it's doing that because it should."

The anti-theft system is the car’s security system. It checks whether the key is recognized, and if not, it will warn you (often with blinking lights) and may block starting.

Term

theft module

"The module's sending power to it to blink, but it's not running... It might need the theft module and they're replaced."

The theft module is the car’s security computer. If it’s not working correctly, it can cause the anti-theft warning lights to behave strangely or prevent the car from recognizing the key.

Term

scanner

"The next step on this is going to be to have a shop plug a scanner into it that can read it and see what the codes are in the anti-theft module..."

A scanner is a device a shop uses to talk to the car’s computer. It can pull up error codes so you know what’s wrong instead of guessing.

Term

programmed

"It might need to be programmed. It might need a different key."

When a car part like an anti-theft module is “programmed,” it means the vehicle’s electronics are configured with the correct settings and security data. This is often required after repairs so the module can properly recognize the key and operate the immobilizer logic.

Term

different key

"It might need a different key. It might need the theft module and they're replaced."

Some keys have a chip inside that the car must recognize. If that key isn’t being read correctly, the anti-theft system can act up and the car may not behave normally.

Term

inertia switch

"I was told that it might by possible be the inertia switch. ... That shuts off fuel only, that inertia switch."

An inertia switch is a safety device that can shut off fuel after a crash. In this case, the host says it wouldn’t stop the starter from turning the engine over—it only affects fuel.

Term

starter relay

"The cranking, that starter relay is controlled by the anti-theft module tells the engine computer that it's been allowed to start, go ahead and engage that relay if it's in park or neutral."

The starter relay is like a heavy-duty switch that tells the starter motor to crank the engine. If the car’s security system doesn’t allow starting, it can prevent that relay from working.

Topic

dark web monitoring

"With one app, you get a VPN, antivirus, password manager, spam call protection, dark web monitoring, [1442.9s] and even up to $5 million in identity theft insurance..."

Dark web monitoring looks for signs that your personal info may have been leaked. If it finds your details in a breach, it alerts you.

Topic

password manager

"With one app, you get a VPN, antivirus, password manager, spam call protection, dark web monitoring, [1442.9s] and even up to $5 million in identity theft insurance..."

A password manager is an app that safely stores your passwords. It can also help you create strong passwords without having to invent them yourself.

Topic

VPN

"With one app, you get a VPN, antivirus, password manager, spam call protection, dark web monitoring, [1428.0s] and even up to $5 million in identity theft insurance..."

A VPN is a tool that makes your internet connection more private by encrypting it. It can help prevent others from seeing what you’re doing online.

Topic

antivirus

"With one app, you get a VPN, antivirus, password manager, spam call protection, dark web monitoring, [1442.9s] and even up to $5 million in identity theft insurance..."

Antivirus is software that helps protect your phone or computer from harmful programs. It looks for threats and tries to stop them.

Topic

identity theft insurance

"...dark web monitoring, [1442.9s] and even up to $5 million in identity theft insurance, all backed by 24-7 US-based fraud support."

Identity theft insurance helps pay for some of the costs that come with identity theft. It can make it easier to recover if someone steals your information.

Topic

wheels

"Go to RoadReadyWheels.com and use their online vehicle selection tool to help you find the wheels that fit your vehicle."

Wheels are the rims your tires mount on. The right wheels have to match your car so they fit safely and don’t rub.

Term

OEM

"Mercedes Cadillac Ford Chevy Chrysler and many more with the OEM fit and look that you want."

OEM stands for the original parts your car was built with. If a replacement part is “OEM,” it’s made to fit and look like the factory part.

Part

TPMS sensors

"Use your factory TPMS sensors and caps too."

TPMS sensors are the little devices that track your tire pressure. If you change wheels, you usually want to reuse your car’s original TPMS sensors so the warning system stays accurate.

Company

Berkeley One Classics

"That was before I met the professionals at Berkeley One Classics. I'm Shannon Nordstrom, host of the Under the Hood Show with Russ Evans and Chris Carter."

Berkeley One Classics is a company that helps insure collector and specialty cars. They’re described as offering coverage that’s based on an agreed value, so you’re less likely to get a low payout after a claim.

Term

agreed value policy

"I'm Shannon Nordstrom, host of the Under the Hood Show with Russ Evans and Chris Carter. Berkeley One Classics ensured me with an agreed value policy. That means if you suffer a loss, there's no haggle over the value of your vehicle."

An agreed value policy means you and the insurance company agree on a car’s value ahead of time. If something happens to the car, the payout is based on that number, not a fight over what it was “worth” later.

Term

online quote tool

"Just visit them on the web at BerkeleyClassics.com and use their online quote tool or give them a call 1-800-603-3330."

An online quote tool is a website form that helps you get an estimated insurance price. The host says it’s quick and easy to use.

Company

car-part.com

"If you need parts, whether it be for a brand new car or going back about 20 years, it doesn't matter, check out car-part.com. It's fast and it's easy."

car-part.com is a website for finding car parts. The host says it’s quick to search and helps you locate parts for newer cars and older ones too.

Concept

collector car coverage

"Congratulations from our friends over at Berkeley One Classics. They're celebrating over 50 years of collector car coverage. We've had a lot of Berkeley One Classics on the show today."

Collector car coverage is insurance designed for classic cars. It usually accounts for how valuable the car is as a hobby/collector vehicle, not just as a regular used car.

Concept

pre-restoration vs restored value

"If you have a car, let's say you bought one to restore... restored, it's worth $100,000, let's say. But you don't have it restored... What do you think that car is worth? And should you have insurance on it?"

They’re talking about how a car can be worth a lot more once it’s fully restored, but much less while it’s still being worked on. That difference can affect what you should insure it for.

Concept

in the middle of restoration

"If you have a car, let's say you bought one to restore. And the car is worth, you're like, well, you know, restored, it's worth $100,000, let's say. But you don't have it restored... So you've got this car apart in your garage, everything's sitting there."

Being “in the middle of restoration” means the vehicle is partially disassembled and not in its finished, drivable condition. That matters for valuation and insurance because the car’s worth can be very different from both the original condition and the fully restored value.

Concept

coverage for a car being worked on (not road-worthy)

"You can cover the car, you're driving it on the street every day. Or you can cover a car that you're working on. They'll cover the car, they'll cover the parts."

They’re talking about two different insurance situations: a car you drive daily versus a car that’s in your garage and not ready to drive. The insurance can sometimes be set up to cover the car and parts while you’re working on it.

Term

insurance underwriters

"Obviously you've got to work with their underwriters to figure all that out. Exactly. They do a lot of things that you just don't hear of from a lot of companies."

Underwriters are the insurance company’s risk experts. They decide what they’ll cover and how much, so you have to coordinate with them to make sure your situation is covered.

Car

Ford Model T

"You know. I've got the Model T insured too. If I have a fire in the building or..."

The Ford Model T is a very old car from the early days of automobiles. The podcast mentions it because it’s insured, and classic cars often need special insurance. That’s especially relevant when talking about what happens if something like a fire occurs.

Concept

project

"Sold it as a project. 866?"

A "project" car is a vehicle that’s being repaired, modified, or restored over time rather than driven normally. The transcript suggests it was sold before the work was finished, which is common when a project runs out of time or money.

Term

overdrive

"I got a 93 Chevy Silverado driving to work the other day and kicking to overdrive. Kind of kicked back out again a few times... I never got my overdrive back and I'm losing like a cord every two days."

Overdrive is an extra “high gear” in an automatic transmission that helps the engine run slower on the highway. If it keeps turning on and off or won’t come back, something inside the transmission system may be malfunctioning.

Car

1993 Chevy Silverado

"Yeah. I got a 93 Chevy Silverado driving to work the other day and kicking to overdrive. Kind of kicked back out again a few times."

This is a 1993 Chevrolet Silverado pickup. The “overdrive” is a higher gear used for highway driving, and the fact it keeps switching in and out points to a transmission problem that needs checking.

Term

4LC

"The 5.7. Okay. I'm guessing the 4LC."

“4LC” sounds like a code for the specific transmission setup in that truck. It matters because different transmission types use different parts and diagnostic steps.

Term

transmission fluid

"If you're losing fluid and you're fluid, there's nothing on the ground... What fluid, by the way? Transmission fluid."

Transmission fluid is the fluid that keeps the transmission moving parts lubricated and helps it shift gears. If the level is low, the transmission may shift wrong or not shift into overdrive, and sometimes leaks don’t leave a big puddle.

Term

transfer case

"You're losing it from the transmission into the transfer case. It will come out the rear tail shaft housing, and the pressure from that transmission is greater than the no pressure with no pump in the transfer case, and it'll be filling it up."

The transfer case is part of a 4-wheel-drive system that sends power to the front and rear wheels. It has its own fluid, so if transmission fluid is getting into it, something inside the drivetrain is likely leaking.

Term

rear tail shaft housing

"It will come out the rear tail shaft housing, and the pressure from that transmission is greater than the no pressure with no pump in the transfer case, and it'll be filling it up. So if you go, if you've been, if you've been put, and you can only put so much in, because then it's full."

This is the back housing area of the transfer case where the drivetrain output comes out. If fluid is leaking from there, it often means a seal or internal part isn’t holding pressure correctly.

Term

top fill plug

"But if you take the top fill plug where you check that transfer case out and it comes blasting out of there, that's where the fluid is going. If you take it out and you have a pan under it and you get like two quarts out of there before it's back to normal level, that's where it's been going."

The top fill plug is the access point you use to add fluid and check the correct level in the transfer case. If fluid shoots out of it, the transfer case is likely getting too much fluid.

Term

vacuum modulator

"The only other possibility is if somebody has replaced this transmission that's in it with something older that has a vacuum modulator on it, then it could be sucking it out through there into the vacuum line of the engine. But this truck didn't have a vacuum modulator."

A vacuum modulator is an older automatic-transmission part that uses engine vacuum to help control how the transmission shifts. If someone swapped in an older transmission, it can cause fluid to get pulled into vacuum lines instead of staying where it should.

Term

solenoid

"Because if you lost one solenoid, you're going to lose more than one gear because they do more than one gear. They just on and off in different combinations."

A solenoid is an electronically controlled switch/valve inside an automatic transmission. If one solenoid stops working, the transmission may lose more than one gear because it uses several of these signals together.

Car

Ford F150

"Awesome. Thank you. Now, Wife has a 2013 F-150. Low mileage, about 54,000, uses it only to cart her horse around mostly."

The Ford F-150 is a large pickup truck. The podcast mentions a 2013 model that’s driven mostly for hauling a horse, which is a practical use case. That kind of routine use can affect what maintenance items you should watch for.

Term

starter cranked, but it didn't fire

"And I started it up after I'd been sitting for a few days. The starter engine cranked, but it didn't fire. The main engine did not fire."

The starter was turning the engine over, but the engine wouldn’t actually start. That suggests a problem with getting ignition or fuel to the engine, not just the battery.

Term

rev control

"And then suddenly it did fire and for a brief while I didn't really have good control over the revs. The revs would go up when I was pumping the gas pedal, but wouldn't come down quickly."

They’re talking about how fast the engine spins (RPM). If RPM jumps when you press the gas but doesn’t come back down quickly, something in the engine’s idle/air control isn’t behaving normally.

Term

fuel pressure

"...the act of turning on the ignition will repressurize the fuel line from the fuel pump to, I guess, the engine..."

Fuel pressure is how strongly the fuel system is pushing gas through the fuel line. If pressure drops after the car sits, turning the ignition on a few times can help bring it back so the engine starts.

Term

fuel line

"...turning on the ignition will repressurize the fuel line from the fuel pump to, I guess, the engine."

The fuel line is the tube that carries gas from the pump to the engine. If gas leaks back when the car sits, the engine may not get the pressure it needs to start right away.

Car

Volkswagen Derby

".... Let's go where we're going, maybe the Kentucky Derby, win some money. But get out of town, get a pric..."

The Volkswagen Derby is a Volkswagen model name. In the podcast, it’s mentioned in a casual way, not as part of a detailed repair or performance topic. So the main point is just that the car is being talked about.

Car

Chevrolet Sonic

"Hi. I have a 2015 Chevrolet Sonic LT. And for the last number of months, it actual..."

The Chevrolet Sonic is a small, everyday car. The podcast mentions a 2015 Sonic LT and says there’s been a problem for a few months. That usually means the conversation is about figuring out what’s wrong and how to fix it.

Term

sporadic issue

"[2531.1s] And there's no step pattern since it started. [2533.7s] This is sporadic issue that may happen like a couple trips in a row. [2540.3s] Then it may not happen for a couple of weeks, two or three weeks."

A “sporadic issue” means the problem comes and goes. That makes it tougher to diagnose because it might not happen when you try to check it.

Term

loses some power

"[2546.0s] And I also noticed when it goes through one of these spells, I'll call it, it also loses some power. [2556.7s] Like I can tramp the pedal down to the baseboard and it'll go maximum of like 45 hour an hour."

“Loses some power” means the car doesn’t feel as strong when you press the gas. That can happen when the engine isn’t getting the right fuel/air or when the car detects a problem and limits performance.

Term

idles choppy

"[2574.9s] But within the last month, when I turn the ignition on, when I'm first getting ready to leave home, sometimes it'll... [2584.8s] Well, it always idols kind of choppy when I first turn it on. [2588.3s] It's like a choppy idol for like five seconds."

A “choppy idle” is when the engine doesn’t run smoothly at a stoplight or right after you start it. It can feel like it’s shaking or stumbling for a few seconds.

Term

power windows

"[2601.6s] That may be a separate issue. [2603.6s] And also during the course of all this, I lost the ability to draw up two of my power windows. [2612.2s] My one power window hasn't worked for like a couple of years. [2616.3s] These other two stopped working at the same exact time."

Power windows are the windows that go up and down with buttons instead of hand cranks. If two or more stop working together, it usually means there’s an electrical problem affecting the whole system.

Term

loss of power

"And I can't remember exactly what we found on this one that did what you're saying, loss of power plus the door lock thing."

“Loss of power” means the car isn’t acting like it should—like it won’t respond normally. Sometimes it’s caused by an electrical problem, not just the engine itself.

Term

ignition switch

"You could have a power issue causing this in several things, ignition switch, something causing this."

The ignition switch is what turns the car’s electrical system on. If it’s worn out or failing, parts of the car’s electronics may lose power or act strangely.

Term

CAN bus

"...a failure in a module bringing the can bus down so the communication network is getting interrupted."

CAN bus is the car’s communication system—like a shared network that the car’s computers use to talk to each other. If it breaks, multiple features can stop working at the same time.

Term

body control module

"I would look at that body control module because you've had door locks, you've had windows, some weird stuff going on... every module in the car said lost communication with BCM with body control module."

The body control module (BCM) is one of the main car computers for body features like locks and windows. If it’s failing, those features can act up and other computers may report communication problems.

Term

data interruption

"...you're finding that that module has failed and it's causing a data interruption on that line causing it to do this."

A data interruption means the car’s computers aren’t able to exchange messages properly. When that happens, some features may stop working because the system can’t “talk” to the right computer.

Term

check engine light

"...did you say whether the check engine lights were coming on or off or not? ... That check engine light's been on for like, it's been on there for years..."

The check engine light (CEL) is the dashboard warning that indicates the engine or emissions control system has stored a fault. In this segment, the hosts note that the CEL can be on for years, which may or may not be related to the body-electronics/network issue being diagnosed.

Term

BCM

"But this has got to be a power or a BCM issue."

BCM means “Body Control Module.” It’s the car’s computer that runs a lot of the electrical features like lights and locks. They’re saying the problem might be connected to that module.

Term

wiring schematic

"There's somewhere that I would have them trace the main, get a wiring schematic out if they don't know and trace the main powers, the main grounds that go to each one of these circuits and check them all."

A wiring schematic is a map of the car’s wiring—what connects to what. The idea is to follow the power and ground wires to find where the problem is.

Term

transmission band

"And he says the, the band on, on the transmission second plus a little bit. Is that something that easily, easily replaced or do the, because he said it catches sometimes and sometimes it doesn't."

Inside an automatic transmission, there are parts that use friction to control the gears. A “band” is one of those friction parts, and if it’s worn it can cause shifting problems—sometimes you can replace just that band.

Term

transmission overhaul kit

"they could take the transmission apart, look at the parts that are worn, replace what needs to be replaced and put it together or get an overhaul kit to do it."

When a transmission is rebuilt, shops often use a kit that includes the common worn-out internal parts. That way they can replace what’s bad and put the transmission back together properly.

Term

valves

"As long as the valves are still good, the rest of the pump and all that is still good."

Automatic transmissions use fluid pressure to control shifting. “Valves” are the internal parts that direct that fluid, and if they’re still working well, the repair may be simpler.

Term

serviceable truck

"[3013.6s] Yeah, that happens a lot. [3014.7s] I would be asking myself that question, because that truck as a serviceable truck is in high demand."

A “serviceable truck” is basically a truck that can be fixed and maintained without huge trouble. Buyers like those because they’re easier (and usually cheaper) to keep on the road.

Term

Cummins diesels

"[3020.2s] Work trucks with Cummins diesels are in high demand. [3023.4s] If they work good and we were just talking about this with one we got in our shop, if it doesn't look horrible."

Cummins is a company that makes diesel engines used in many heavy-duty trucks. “Cummins diesels” just means a truck with a Cummins diesel engine, the kind people buy for work because it’s made to handle tough use.

Term

work trucks

"[3020.2s] Work trucks with Cummins diesels are in high demand. [3023.4s] If they work good and we were just talking about this with one we got in our shop, if it doesn't look horrible."

“Work trucks” are trucks used for real jobs—like hauling or construction—not just everyday driving. People pay more for them when they’re dependable.

Term

injector failure

"[3028.6s] Yeah, we got a pretty good, I mean, it's got a slight knock because it had an injector failure, caused some kind of damage in there, but it starts and runs and dries."

Fuel injectors are the parts that spray fuel into the engine. If an injector fails, the engine may run rough or start acting up because it’s not getting the right amount of fuel.

Term

slight knock

"[3028.6s] Yeah, we got a pretty good, I mean, it's got a slight knock because it had an injector failure, caused some kind of damage in there, but it starts and runs and dries."

“Knock” is a rattling or pinging sound from the engine. It usually means the engine isn’t burning fuel the way it should, or something inside is under stress.

Term

specialty spool

"[3047.6s] If somebody wants one for a construction company that it's like the fifth truck or for a ranch to put a specialty spool on the back for pulling, pulling a wagon or whatever it might happen to be, that's high demand."

A “spool” here sounds like a drum for winding cable/rope used for pulling. A “specialty spool” means it’s set up for a specific job, like towing or hauling.

Term

transmission shop

"I would call a transmission shop too that works on those units and doesn't mind turning one apart."

A transmission shop is a garage that focuses on fixing transmissions. The point here is that some shops will only replace parts with rebuilt ones, while others can take your unit apart and repair it directly.

Term

remanufactured unit

"Because a lot of transmission shops per se in the last 10 years have became more inclined to install a remanufactured unit because they don't have the technical expertise in the shop anymore to open it up and go through it."

A remanufactured unit is a used part that gets taken apart and rebuilt by a shop, usually with new internal pieces, so it’s supposed to work like a replacement. It’s often used when the shop doesn’t want to (or can’t) rebuild yours from scratch.

Concept

self-driving

"That type of function. I just canceled my daughter's self-driving subscription on her Tesla sitting in Phoenix, Arizona, because she's got it stored at our friend's place. Plugged in while she's going from college for five months."

“Self-driving” means the car can take over some driving tasks, but it usually isn’t fully autonomous. The hosts are saying you should check the latest info and settings so you understand what the system will do for you.

Term

FSD

"When I was down there and checked her car, she had used the FSD 76% of the time she was driving the car... And my first question is, did you have FSD on?"

FSD is a software feature that helps the car drive more on its own. It can handle things like steering and lane keeping, and the host is talking about how much their daughter relies on it.

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