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Fixing Cars Is Easier with The Motor Medics on The Phone

Fixing Cars Is Easier with The Motor Medics on The Phone

Under The Hood show Dec 17, 2025 62 min
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About this episode

Russ Evans and Shannon Nordstrom tackle a variety of listener car questions, providing expert advice on issues ranging from four-wheel drive problems in a Chevy Suburban to maintenance tips for a 2015 diesel truck. They discuss the importance of regular maintenance, especially for older vehicles, and share insights on how to handle common issues like oil leaks and brake problems. The episode also features discussions on collector car insurance and the value of maintaining classic vehicles, making it a practical resource for car enthusiasts and everyday drivers alike.

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Technical Too Afraid to Ask
Car

Chevy Suburban

""Gary's got a O2 Chevy Suburban. How you doing, Gary? You're pretty good.""

The Suburban is a big, family‑friendly SUV from Chevrolet that can carry lots of people and gear. It’s been around for a long time and is popular in the U.S.

Part

transmission (tranny)

""Maybe the switch or a few other components on the tranny or transfer case.""

The transmission is the part of a car that changes gears so you can drive at different speeds and loads.

Term

power windows

"Same thing goes for power windows. If you don't operate power windows, a lot of people find their back windows don't go up and down to the passenger window."

Instead of turning a wheel to open or close the window, you press a button and the window moves for you. It’s common in most cars today.

Part

relays built into the motor

"One of them. Yeah, that's got relays built into the motor. It's a weird duck for sure."

Think of a relay as a tiny switch that lets the car’s low-power electronics control a bigger power device, like the window motor. It protects the small circuits from heavy current.

Concept

fleet vehicle

"I'm guessing if it was a fleet vehicle, they probably had a very good maintenance routine on it."

A fleet vehicle is a car that a company owns and uses for work, like delivery trucks or taxis. Because they’re used a lot, companies usually keep them well maintained.

Term

diesel

"Some good spirited drives every once in a while with that diesel to get it good and warm..."

Diesel engines use a special kind of fuel called diesel, which is thicker than gasoline. They’re great for trucks and big cars because they give a lot of power when you need it.

Part

emission system cleaning kit

"BG products has a emission system cleaning kit that will really help decarbon that and get the soda out of it."

This kit helps clean the parts inside the car that can get dirty over time. Cleaning them keeps the engine running smoother and cleaner.

Part

transmission filter

"don’t go change out the transmission filters down there. If you do, he goes every single one that I heard people talk about."

A transmission filter is like a strainer that keeps dirt out of the fluid that moves gears in your car’s transmission.

Part

mission system cleaner

"Yeah, good maintenance. Get it out for some spirited drives every once in a while to get some good temperature put through it. Mission system cleaner, something to look at."

A special liquid you pour into a car’s gearbox to help keep it running smoothly by cleaning out old grease and dirt.

Car

2001 Chrysler Town & Country

"We're going to go to Josh and Minnesota with an 01 Chrysler town and country and a snowblower."

It’s a van that can seat several people and has a roomy back seat, making it popular for families.

Concept

snowblower mounted on front of a car

"I was watching a YouTube video where a guy made a snowblower and mounted it on the front of a car. They used a little car engine, a three-cylinder geo-metro engine and they've made a snowblower out of it."

It’s a way to put a snow-clearing machine on the front of a car so you can drive through snow and it clears the road for you. You have to make sure it’s secure so it doesn’t fall off.

Part

valve cover gasket

"Look at the valve cover gasket, the back one for sure closely. Also check the oil pressure sending unit."

The valve cover gasket is a small rubber or metal seal that keeps engine oil from leaking where the top part of the engine meets the cover. If it’s damaged, oil can drip onto the engine and create a mess.

Part

oil pressure sending unit

"Also check the oil pressure sending unit. The sending unit will leak run down the side of the block to the pan and make it look like you've got an oil pan leak."

This small device sits on the engine and tells your car how hard the oil is moving. If it leaks, it can make it look like there’s an oil leak elsewhere.

Part

oil pan gasket

"The sending unit will leak run down the side of the block to the pan and make it look like you've got an oil pan leak and we have replaced those sending units."

It’s a seal that sits between the engine block and the oil pan. If it’s worn, oil can leak onto the ground or create a mess inside the engine.

Part

crankshaft seal

"It's hard to see up in there because of the crankshaft fully. How often does that crankshaft seal leak?"

It’s a small rubber ring that sits where the crankshaft sticks out of the engine. If it wears out, oil can drip from that spot.

Concept

snowblower type: auger vs paddle wheel

"What's the best way to clean the carbs? You said it's a yard machine. Is this a paddle wheel snowblower or an auger type snowblower with a big metal auger in the front."

There are two main kinds of machines for clearing snow: one that spins a big screw to push the snow, and another that uses big blades to shove it away.

Brand

Briggs and Stratton

"Or let's say you've got a eight horsepower Briggs and Stratton engine. You type in eight horsepower Briggs and Stratton carburetor."

Briggs & Stratton makes small gasoline engines that power things like lawn mowers and generators. They’re common because they’re reliable and many parts are easy to find.

Part

fuel valve

"And that fuel valve, you could probably buy one of those while you're at it."

A small device that lets you turn the gas on or off for a car’s engine. It helps start the car and stop it from running when you need to.

Part

rubber hose

"The fuel shut off valve, the rubber hose and a filter and it all came in a little kit for like 36 bucks or something pretty pretty cheap."

A stretchy tube that moves gasoline from the tank to where it’s needed in the engine. It needs to be sturdy so it doesn’t burst.

Brand

roadready wheels

"A new set of roadready wheels will stop the leaks. ... Over 40,000 wheels with free shipping available and returns with a one year warranty under the hood listeners save 10%."

RoadReady Wheels makes replacement wheels that look like the ones your car came with, but usually cost less and fit right out of the box.

Part

TPMS sensors

"These wheels are a direct fit so your factory caps and TPMS sensors will fit."

TPMS sensors sit on your tires and tell the car if a tire is too flat or overinflated, so you can keep your car safe and fuel‑efficient.

Company

Berkeley One Classics

"For 50 years, Berkeley One Classics has ensured a wide range of vehicles from sports cars and rare exotic cars to antique vehicles including cars, trucks, tractors, military vehicles and motorcycles."

Berkeley One Classics is a company that sells insurance for old and rare cars, trucks, and other vehicles. They help people keep their valuable vehicles safe.

Term

master cylinder

"Is that just a simple master cylinder or with all that analog is a bit of a problem?"

When you press the brake pedal, a small pump called the master cylinder turns that push into liquid pressure. That pressure travels through brake lines to stop your car.

Part

ABS module

"If it's solid and does not sink on its own, then your problem may have been in that ABS module,"

The ABS module is a small computer that helps your brakes work better by stopping the wheels from locking up when you brake hard. It tells the car how much pressure to put on each wheel.

Term

turbo engine

"I'd probably lean to my own personal preference would be not to do the turbo engine just to do the good old V8 hemi."

A turbo engine is a car engine that has a small turbine (the turbo) which pushes extra air into the engine, making it stronger and faster.

Part

injector

"It could be an injector that had the problem that could also cause the misfire."

Think of an injector like a tiny spray nozzle that drops fuel into the engine. It helps the engine run smoothly and efficiently.

Company

BG Products

"BG products, that's the company that has the maintenance for the diesels and gas."

BG Products makes cleaning and maintenance supplies that help keep diesel trucks in good shape, especially for companies that use many vehicles.

Part

differentials

"But we also have a specific time for changing their fluids and their differentials, their transfer cases, transmissions, coolant, all that stuff."

A differential is a part of a car that lets the wheels on one axle spin at different speeds, which helps the car turn smoothly. It also sends power from the engine to those wheels.

Part

transfer cases

"But we also have a specific time for changing their fluids and their differentials, their transfer cases, transmissions, coolant, all that stuff."

A transfer case is a part that sends power from the engine to both the front and rear wheels in four‑wheel‑drive cars. It also lets the car shift into a low gear for tough driving.

Part

transmissions

"But we also have a specific time for changing their fluids and their differentials, their transfer cases, transmissions, coolant, all that stuff."

A transmission is the part of a car that changes how fast or strong the engine’s power is sent to the wheels, letting you speed up, slow down, or drive in different gears.

Part

coolant

"But we also have a specific time for changing their fluids and their differentials, their transfer cases, transmissions, coolant, all that stuff."

Coolant is a liquid that runs through the engine to keep it from getting too hot. It also stops the engine from freezing when it’s very cold.

Concept

fifth wheel camper

"[2610.8s] well, we pull a big fifth wheel camper."

A fifth wheel camper is a big house on wheels that attaches to the back of a truck using a special hitch. It’s popular for long trips because it can be larger and easier to pull than other trailers.

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