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Great Talk About Cars and Everything Automotive

Great Talk About Cars and Everything Automotive

Under The Hood show Dec 28, 2025 46 min
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About this episode

A lively discussion on automotive topics unfolds as the hosts tackle listener questions ranging from scanner data interpretation to oil additives and winter driving tips. They delve into the nuances of OBD-II scanners, the importance of zinc in engine oil, and the challenges of maintaining older vehicles. The episode also emphasizes the significance of proper winter preparation, including wiper maintenance and tire selection, while sharing personal anecdotes and insights from their automotive experiences. Listeners gain valuable advice on troubleshooting common issues and understanding vehicle systems.

Technical Too Afraid to Ask
Term

OBD data

"Even the basic Bluetooth ones that you're going to pick up that are 40-50 bucks will read some basic OBD data."

OBD data is information that cars collect about how they're running. It helps mechanics find out if there are any problems with the engine or other parts of the car.

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Term

live data

"What he's thinking of, I think, is live data. Yeah, live data. You can read it."

Live data is the information that a car's sensors give you while the car is actually running. It helps you see how different parts of the car are working at that moment.

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Term

engine coolant temp

"So engine coolant temp, oxygen sensor voltages, any sensor voltage reading and temperature pressures."

Engine coolant temperature is how hot the liquid that cools the engine is. It's important to keep the engine from getting too hot and to make sure it runs well.

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Term

OBD-II

"It won't even go in and identify Christ or Ford, Chevy Toyota. It's just OBD, and it reads live data."

OBD-II is a system in cars that helps you check if something is wrong with the engine or other parts. It gives codes that tell you what the problem might be, making it easier to fix.

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Part

O2 sensors

"...if I can be able to find the voltage values for like on the O2 sensors and all that stuff..."

O2 sensors are parts in a car that check how much oxygen is in the exhaust. They help the engine run better and cleaner by making sure the right amount of fuel is used.

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Term

ZDDP

"...you talked about the ZDDP and stuff like that. And I have an 82 GMC that I always add some zinc into the oil..."

ZDDP is a chemical added to engine oil to help protect the engine from wear and tear. It's especially important for older cars that need extra care.

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Chevy Equinox
Dinkun Chen (CC BY-SA 4.0)
Car

Chevy Equinox

"...I have a 2018 Chevy Equinox. And I thought they took..."

The Chevy Equinox is a small SUV that is easy to drive and has a lot of room for passengers and cargo. The 2018 version has many modern features that make it safe and comfortable.

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Term

catalytic converters

"...is so the catalytic converters."

Catalytic converters are parts of a car's exhaust system that help clean up the gases that come out of the engine, making them less harmful to the environment.

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Term

zinc

"...I wonder if I put a zinc in my car, plug up the cat, and maybe that's just bad info, I don't know. I put it in mine and I don't have any problem with it."

Zinc is a chemical added to some engine oils to help protect the engine parts from wearing out. It's especially important for older engines that need extra care.

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Term

burning oil

"...the engine has to be burning oil. And since my engine doesn't burn any oil, how's it going to get in there?"

Burning oil means that the engine is using up the oil as fuel, which can create smoke and is usually a sign that something is wrong with the engine. It's not good for the car's health.

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Part

thermostat

"I gotta get a thermostat in it. It was a device that was replaced every couple of years..."

The thermostat helps keep your car's engine from overheating by controlling the temperature. If it gets too hot, the thermostat opens up to let coolant flow and cool things down.

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Term

OBD-2

"...that will give you almost all of them. OBD-2 tells you the thermostat's not working properly."

OBD-2 is a system in cars that helps check if everything is working properly. It can tell you if something is wrong, like if the engine is too hot or if a part needs fixing.

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Term

check engine light

"...The light comes on. Check engine light comes on."

The check engine light is a warning light on your car's dashboard. It means that something is wrong with the engine or another important part of the car, and it needs to be checked.

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GMC Acadia
Kevauto (CC BY-SA 4.0)
Car

GMC Acadia

"...like an Acadia, traverse 8,900 bucks to put a thermostat in it. That's insane."

The GMC Acadia is a type of SUV that can carry a lot of people and cargo. It's designed to be comfortable and practical for families.

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GMC C15
Dave732 (CC BY-SA 3.0)
Car

GMC C15

"...I have a 97 GMC, a half ton, you know, C15, 4th side. And somebody has redone most everything..."

The GMC C1500 is a type of truck made by GMC. It's known for being strong and useful for carrying things, whether for work or everyday use.

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Part

suspension

"But while the suspension has been modified, somebody's made a lowrider out of it."

The suspension is the system that connects a car to its wheels and helps absorb bumps in the road. Modifying it can change how the car drives.

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Concept

lowrider

"somebody's made a lowrider out of it."

A lowrider is a car that sits lower to the ground than normal. People often modify them to make them look cool.

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Part

cold air induction

"Aftermarket cold air induction."

Cold air induction is a way to get cooler air into the engine, which can help it run better and make more power.

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Company

K&N filter

"With the K&N filter, I see that it should maybe be replaced."

K&N makes special air filters that help cars breathe better, which can make them run more efficiently.

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Part

oxygen sensor

"If it's a bad oxygen sensor, if it's a EGR valve, whatever it is, it's on and it's telling you that there's a problem."

An oxygen sensor is a part of your car that checks how much oxygen is in the exhaust. It helps the engine run better and use fuel more efficiently. If it's broken, it can cause problems with your car's performance.

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Part

EGR valve

"If it's a bad oxygen sensor, if it's a EGR valve, whatever it is, it's on and it's telling you that there's a problem."

An EGR valve is a part of your car that helps reduce pollution by sending some exhaust gases back into the engine. If it doesn't work right, it can cause your car to pollute more and run poorly.

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Concept

Clean Air Act

"And yes, you're violating the Clean Air Act by driving something that's polluting."

The Clean Air Act is a law in the U.S. that helps keep the air clean by controlling pollution. It sets rules that companies and people must follow to reduce harmful emissions into the air.

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Chevrolet Corvettes
Matti Blume (CC BY-SA)
Car

Chevrolet Corvettes

"...onverter as without. There's no reason to look at Corvettes. And look at the new Ferraris."

The Chevrolet Corvette is a fast and stylish sports car that many people love. It's famous for being powerful and fun to drive, making it a popular choice for car enthusiasts.

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Term

headers

"If you've got headers on it, which I would assume with all that other stuff, it's got to have headers. They're close to the starter."

Headers are special pipes that help the engine get rid of exhaust gases more easily. They can make the car go faster and perform better.

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Term

starter

"They're close to the starter. They build up heat in the starter."

The starter is a small motor that helps start the car's engine when you turn the key. If it gets too hot, it can have trouble working properly.

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Chevrolet Impala
Dllu (CC BY-SA 4.0)
Car

Chevrolet Impala

"Yeah I've got a 2004 Impala"

The Chevrolet Impala is a large car made by Chevrolet. The 2004 version is known for being roomy and comfortable, making it a popular choice for families.

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Chevrolet Camaro
Ermell (CC BY-SA 4.0)
Car

Chevrolet Camaro

"all of them do My Camaro it's constant"

The Chevrolet Camaro is a sporty car that looks cool and goes really fast. It's popular for its strong engine and fun driving experience, making it a favorite among people who like muscle cars.

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Chevrolet Monte Carlo
Greg Gjerdingen (CC BY 2.0)
Car

Chevrolet Monte Carlo

"Impala Monte Carlo the"

The Chevrolet Monte Carlo is a stylish two-door car that was made for many years, known for being comfortable and a bit sporty. It was popular in the past and is often remembered for its racing connections.

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Brand

Tesla

"there was a row of six of them that said Tesla"

Tesla is a car company that makes electric cars, which run on batteries instead of gasoline. They are known for being very advanced and environmentally friendly.

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Brand

Hyundai

"this is a Hyundai"

Hyundai is a car company from South Korea that makes many different types of cars, including sedans and SUVs. They are known for making reliable vehicles at good prices.

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7 cars featured

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