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Get Ready For Free Car Repair

Get Ready For Free Car Repair

Under The Hood show Jan 21, 2026 54 min
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About this episode

A lively discussion unfolds as Russ and Shannon tackle various listener car troubles, including a Dodge pickup with starting issues, a BMW facing catalytic converter dilemmas, and a Mazda Miata's air-fuel mixture tuning. They share insights on diagnosing problems, the importance of proper fuel pressure, and the challenges of intermittent vehicle issues. The hosts also emphasize the significance of using quality parts and staying proactive with maintenance. With humor and expertise, they guide callers through automotive conundrums, making for an engaging and informative episode.

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Technical Too Afraid to Ask
Part

fuel pump

"Each shop has charged me for a fuel pump, they've charged me, they've changed out the crank sensor..."

The fuel pump helps send gas from the tank to the engine. If it doesn't work, the car might not start or run well.

Part

crank sensor

"they've changed out the crank sensor, they've changed out all they've gotten into the injector..."

The crank sensor helps the engine know how fast it's turning. If it's broken, the engine might have trouble starting or running smoothly.

Part

injector

"they've changed out all they've gotten into the injector or whatever."

Injectors spray fuel into the engine to help it run. If they don't work right, the car can have problems like using too much gas or not running smoothly.

Term

starting fluid

"if you got out and got some starting fluid and tried to start it, it would turn over, you know, and they've changed the fuel pump twice."

Starting fluid is a special spray that helps engines start when they have trouble. It's very flammable and can help get the engine going when there's not enough fuel.

Term

engine temperature

"When I shut it off, I wanna read what the engine temperature is and the intake air temperature sensor and make sure they're correct."

Engine temperature is how hot or cold the engine is while it's running. It needs to be at the right level to work properly.

Term

intake air temperature sensor

"...and the intake air temperature sensor and make sure they're correct."

The intake air temperature sensor checks how hot or cold the air is that goes into the engine. This helps the engine run better by adjusting how much fuel it gets.

Term

engine coolant temperature

"...does my engine coolant temperature read the same? If it reads hotter or colder by a significant amount, it will not start very easily."

Engine coolant temperature tells us how hot the liquid that cools the engine is. It needs to be just right for the engine to start and run well.

Term

flood mode

"Typically that shuts the injectors off and clears the fuel out for a flood mode but what it'll also do is put it into open loop mode for a second"

Flood mode is when there's too much fuel in the engine, which can prevent it from starting. It's like when you pour too much gas into a fire—it won't ignite properly.

Term

open loop mode

"but what it'll also do is put it into open loop mode for a second and then it goes back to close just for a second"

Open loop mode means the engine is running without checking how much fuel it needs based on the air it gets. It's like cooking without tasting the food to see if it needs more salt.

Term

closed loop mode

"and then it goes back to close just for a second and put some gas in it when you let up on it"

Closed loop mode means the engine is checking how much fuel it needs based on the air it gets. It's like adjusting a recipe while you're cooking to make sure it tastes just right.

Part

distributor cap

"because it's an O3, it said distributor cap. Let's see."

The distributor cap helps send electricity to the engine's spark plugs, which makes the engine run. It's important for older cars with traditional ignition systems.

Part

ignition coil

"Let's see. We've got ignition coil, no?"

An ignition coil is a part that helps create the spark needed to start the engine. It takes the battery's power and makes it strong enough to ignite the fuel.

Car

BMW 330I

"Hello, John. Tell us about your O5 BMW 330i. I love this car."

The BMW 3 Series is a small luxury car that is fun to drive and has a nice interior. The 2005 model, like the 330i, is known for being sporty and comfortable, making it a popular choice for people who enjoy driving. It's a great mix of style and performance.

Term

RPM

"...not being able to generate any power above 4,000 RPM. And I found that merging onto a four lane highway..."

RPM means how many times the engine's parts spin in one minute. It's important because it helps you know when the engine is working best to give you power.

Part

catalytic converters

"...and told me my primary catalytic converters... And that I needed to replace them both."

Catalytic converters help reduce pollution from cars by changing harmful gases in the exhaust into safer ones. They are important for keeping the air cleaner.

Term

OEM equipment

"...the cost for OEM equipment is an eye-popping 10 grand. And my question to you is they did offer me an aftermarket..."

OEM equipment means parts made by the same company that built your car. They are usually more expensive but are guaranteed to fit and work well.

Term

aftermarket

"...they did offer me an aftermarket, but they could not warranty it."

Aftermarket parts are made by other companies, not the original car maker. They can save you money, but their quality might not always match the original parts.

Term

fuel trims

"...as soon as the converters are on, we're going to check the fuel trims and make sure they're near zero. So we don't have a rich condition or a lean condition."

Fuel trims help the engine run smoothly by adjusting how much fuel is mixed with air. If the fuel trims are off, it can mean the engine is getting too much or too little fuel, which can cause problems.

Term

O2 sensor

"O2 is the one's closest to the engine because there's no there's no restriction. You're going from the engine to the converter."

An O2 sensor is a part that checks how much oxygen is in the exhaust gases. It helps the car's computer decide how much fuel to use for better performance and cleaner emissions.

Term

oil change

"through the 3000 mile oil change or five, whatever you're doing. If you're saying, oh, well, I put about a quart and a half oil in every time."

An oil change is when you replace the old oil in your car's engine with new oil. This is important to keep the engine running smoothly and to prevent damage.

Term

burning oil

"Well, that's probably what happened to your, your, your engine. You know, you, you were burning oil and that was causing your, your problem."

Burning oil happens when your car's engine uses up oil as fuel, which can cause problems. It usually means there are issues with parts of the engine that need fixing.

Term

antifreeze

"Antifreeze is even worse than oil. Oil turns to soot and carbon and builds up slowly, plugs it up, but coolant, that gets in there."

Antifreeze is a special liquid that helps keep your car's engine from getting too hot or too cold. It prevents freezing in winter and overheating in summer, which can damage the engine.

Company

Berkeley One Classics

"The end of the hood show podcast is brought to you by exclusive sponsors like Berkeley One Classics, celebrating 50 years, your key to collector car insurance."

Berkeley One Classics is a company that offers insurance specifically for classic cars. They help people protect their valuable old cars from damage or loss.

Company

Car Dash Part.com

"...and by car dash part.com with over 200 million parts. Find them online at car dash part.com..."

Car Dash Part.com is a website where you can find a huge selection of car parts. They have millions of parts available, making it easier to get what you need for fixing or maintaining your car.

Company

Road Ready Wheels

"...and by road ready wheels, OEM replica..."

Road Ready Wheels is a company that makes replacement wheels for cars. Their wheels look like the original ones that came with the car, so you can replace a damaged wheel without changing the look of your vehicle.

Term

steel wheels

"...Maybe steel is the way to go for you to mount a second set of winter tires or you just don't like the aluminum look..."

Steel wheels are strong wheels made from steel. They are usually cheaper than aluminum wheels and are often used for winter tires or on budget cars.

Brand

Chevy

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

Chevy is a nickname for Chevrolet, a car brand that makes many different kinds of vehicles, including trucks and sports cars. They are known for models like the Chevy Silverado truck.

Brand

Mercedes

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

Mercedes is a famous car brand that makes luxury cars. They are known for their stylish designs and advanced technology.

Brand

Ford

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

Ford is a popular car company in America that makes many types of vehicles, including trucks and cars. They are well-known for models like the Ford F-150 truck.

Car

Nissan Rogue

"...th Shannon Nordstrom and Patrick with a 25 Nissan Rogue. How you doing Patrick?"

The Nissan Rogue is a type of car called an SUV, which means it's bigger than a regular car and can carry more people and stuff. It's known for being comfortable and good on gas, making it a great choice for families or anyone who needs a lot of space. The 2025 version has some cool safety features that help keep you safe while driving.

Car

Chevy one ton

"Hey, I got a 98 Chevy one ton with a 454 in it."

A Chevy one ton is a type of truck made by Chevrolet that can carry a lot of weight, specifically up to one ton. It's built for heavy-duty tasks.

Car

Mazda Miata

"...ll, maybe from normal calls, but it's a 99 Mazda Miata and it's a race car. And, um, my questions is ab..."
Car

Cadillac Escalate

"Thank you. So I had a 2020 Cadillac escalate. It's got about 75,000 miles on it."

The Cadillac Escalade is a big, fancy SUV that has a lot of room inside and comes with lots of luxury features. It's great for families or anyone who wants a comfortable ride with a lot of space. The 2020 model is popular and known for being powerful and stylish.

Car

Gmc Canyon

"Pretty good. Uh, 2018 GMC Canyon, 23,000 miles on and about, uh, this screen on t..."

The GMC Canyon Crew Cab is a medium-sized truck that can carry people and cargo easily. The 2018 version is known for being comfortable inside and having good technology features, making it great for both work and everyday use. It's also good for towing and off-roading if you need that kind of capability.

5 cars featured

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