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Everyone Want's To Know How To Fix Their Own Car

Everyone Want's To Know How To Fix Their Own Car

Under The Hood show Oct 08, 2025 52 min
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About this episode

Listeners dive into the intricacies of automotive repair and maintenance in this episode, with hosts discussing everything from battery testing to the complexities of diesel fuel systems. They tackle listener questions about vehicle issues, including airbag lights, radio malfunctions, and the challenges of working with right-hand drive vehicles. The episode also features insights on the importance of using the right fuel additives for diesel engines and the nuances of aftermarket parts. Engaging anecdotes and practical advice make this episode a valuable resource for DIY mechanics and car enthusiasts alike.

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Technical Too Afraid to Ask
Car

Chevrolet Corvette

"Yeah. And I think we had cubed bicycles at the Corvette. And those aren't, those aren't the same machine..."

The Chevrolet Corvette is a fast and sporty car that many people love because it looks cool and drives really well. It's been around for a long time and is famous for being one of America's best sports cars.

Term

battery tester

"...you need to use a battery tester and find out what the battery state is that deep, not just, uh, right."

A battery tester checks how well your car's battery is working. It tells you if the battery has enough power or if it needs to be changed.

Term

cold cranking amps

"...you have 800 cold cranking amps or so that's needed to crank that vehicle. You might have a hundred cold cranking amps and that is a weak battery that needs to be replaced."

Cold cranking amps tell you how well a car battery can start the engine in cold weather. If the number is low, it means the battery might not be strong enough to start the car, especially when it's cold outside.

Part

alternator

"We were failing a lot of alternators and we eventually decided, all right, here's our failure rate after we bought the tester. And here's our failure rate before we had the tester with customers. We had a less failure rate before we bought the tester."

An alternator is a part in a car that makes electricity while the engine is running. If it stops working, the car's battery can die, and the electrical parts won't work properly.

Car

Jeep Grand

"You know, I have a 99 Jeep Grand Cherokee right-hand drive. I felt a couple weeks ago about the scanner wouldn't recognize my VIN number."

The Jeep Grand Cherokee is a popular SUV that can handle both city driving and off-road adventures. The 1999 version is known for being comfortable and capable.

Term

VIN

"Is there a way to type in the VIN? You don't type the VIN in."

A VIN is like a car's fingerprint; it's a special number that helps you know exactly what kind of car it is and its history.

Car

Ford Taurus

"A Ford Taurus made in the United States and it said, can't use auto ID. It says, what year is it? Oh, it's a 2005."

The Ford Taurus is a popular family car known for being roomy and comfortable. The 2005 version is one of the models made during its long production run.

Term

OBD2

"...as long as it's OBD2. That is an international standard through the Society of Automotive Engineers, correct?"

OBD2 is a system that helps mechanics check how well a car is running. It connects to the car's computer to find out if there are any problems with the engine or emissions.

Term

SAE J

"It's the standard SAEJ, whatever the heck it is. It even works on the Chinese stuff that they're building over there that we don't have in the United States."

SAE J is a set of rules that help make sure car parts work well together. It's like a guideline for car manufacturers to follow.

Term

J1934

"If it's like a J1934 and you're looking at an American car and it's the same thing, then you're like, oh, it's the same protocol."

J1934 is a set of rules that helps car computers talk to diagnostic tools. This makes it easier to check if a car is working properly.

Term

EV tax credit

"...the bigger news that's out there for some was the mad dash to get to the EV tax credit at September 30th. There's a lot of people went out and that were interested in EVs that went out and pushed to make sure they got that done before the deadline..."

The EV tax credit is money the government gives back to you when you buy an electric car. It helps lower the overall cost of the car by reducing your taxes.

Term

$7,500 tax credit

"...that $7,500 tax credit went away. And so now that is officially gone."

The $7,500 tax credit is a discount you can get from the government when you buy an electric car. It helps make the car cheaper by lowering how much you owe in taxes.

Term

federal tax credit

"...when you got into the paperwork to look at it, it had nothing to do with the federal tax credit. It had everything to do with the fact that you were doing a lease..."

A federal tax credit helps you pay less in taxes. For electric cars, it can make buying one cheaper by giving you money back when you file your taxes.

Car

Tesla

"because like I'm watching it on Teslas, they, they already had a pretty good drop from new to first used market."

Tesla is a company that makes electric cars. They are popular and have a lot of technology in them, which can affect how much they are worth after you buy them.

Company

Road Ready Wheels

"We want to tell you about our partner at Road Ready Wheels. Road Ready Wheels has the very best aftermarket OEM replica wheels available with a direct fit..."

Road Ready Wheels makes replacement wheels that look like the original ones from the factory. You can easily swap them without needing extra parts.

Part

TPMS sensors

"...aftermarket OEM replica wheels available with a direct fit of the factory center caps and TPMS sensors so you don't need special caps and sensors..."

TPMS sensors check the air pressure in your tires. If the pressure is too low, they let you know so you can fix it before it becomes a problem.

Part

steel wheels

"Road Ready Wheels has both aluminum alloy and new steel wheels to fit many cars on the road today."

Steel wheels are made from heavy metal and are very strong. They're often used on cheaper cars or for winter tires because they can handle rough conditions.

Part

aluminum alloy wheels

"Road Ready Wheels has both aluminum alloy and new steel wheels to fit many cars on the road today."

Aluminum alloy wheels are lighter and stronger than regular steel wheels. They can make your car look nicer and help it perform better.

Part

feeder core

"Yeah. The feeder core, they said that that might have to get replaced. And when I was trying to order one, one guy said that it's universal."

The feeder core helps keep your car's engine cool and the inside warm. If it breaks, your car might overheat or not heat up properly.

Company

Rock Auto

"...I called Rock Auto, their specify right hand drive vehicle. And they don't even specify a right hand drive in that year."

Rock Auto is a website where you can buy car parts. They have a lot of options for different cars, making it easier to find what you need.

Part

heater core

"...if it has any angle to where the outlet is on the heater core, it'd be hard to believe that..."

The heater core is like a mini radiator that helps warm up the inside of your car by using hot liquid from the engine. It's important for keeping the cabin comfortable in cold weather.

Part

thermostat housing

"...they usually have one fitting on the engine that comes out by the thermostat housing that runs back around to the heater core..."

The thermostat housing is a part of the engine that keeps the thermostat secure and helps control the flow of coolant. It ensures the engine stays at the right temperature.

Part

radiator

"...the radiator is where that other hose comes back into on most of them..."

The radiator is a part of your car that cools down the hot liquid from the engine. It helps keep the engine from overheating by releasing heat into the air.

Car

Acura Ilx

"Got a question from the chat here. 2013 Acura ILX and then in parentheses. Civic. Recently replaced starter due to no starter and spark plugs."

The Acura ILX is a small luxury car that started being sold in 2013. It's similar to the Honda Civic but has more upscale features.

Car

Civic

"Got a question from the chat here. 2013 Acura ILX and then in parentheses. Civic. Recently replaced starter due to no starter and spark plugs."

The Honda Civic is a small car that many people like because it's reliable and good on gas. It's been around for a long time and has many different versions.

Term

tune-up

"Oh boy. Hard to start. You got to check your basic tune-up items first."

A tune-up is when you check and fix important parts of a car's engine to make sure it runs well. This can include changing spark plugs and filters.

Term

spark plugs

"...if it's got a rough idle, have you ever checked the tune-up stuff, the basic stuff? Spark plugs, coils."

Spark plugs are small parts in a car's engine that help start the engine by creating a spark. They need to be changed sometimes to keep the engine working well.

Part

starter

"...recently replaced starter due to no starter and spark plugs. I don't understand that statement right there..."

The starter is a part of the car that helps turn on the engine. If it doesn't work, the car won't start, which can be a big problem.

Car

Buick Encore

"...this is probably a Buick Encore because that's really the only Buick that has a failed fan that we see."

The Buick Encore is a small SUV that is easy to drive and park in the city. It's popular for its comfortable interior and good fuel economy.

Part

air filter

"filters air, it's good. I mean, there's different kinds. There's the paper kind and there's the washable, reusable kind."

An air filter helps keep your car's engine clean by blocking dirt and dust. There are different kinds, some you can wash and reuse, while others need to be replaced.

Car

John Deere 2520

"...I've had a 2010 John Deere 2520 compact utility tractor I've had for a few years. And it gets seldom used..."

The John Deere 2520 is a small tractor that can help with farming and yard work. It's powered by diesel fuel, which is different from regular gasoline.

Term

fuel filter

"...I've never really changed the fuel filter on this tractor. And so I decided to check the sediment bowl..."

A fuel filter helps keep the fuel clean before it goes into the engine. Changing it regularly helps the engine run better.

Term

algae in fuel

"...there are products that treat it. In our shop, we use a couple of different ones for that. If you've got a professional shop nearby..."

Algae in fuel is when tiny plants grow in diesel fuel, which can cause problems for engines. Special products can help get rid of it.

Company

Justice Brothers

"...pick up Justice Brothers, the summer additive, diesel fuel additive, it will kill algae and it will clean the system."

Justice Brothers makes special products that help clean car engines and fuel systems, making them run better.

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