0:00 / 0:00
#25101: Diana's Dodge Biohazard

#25101: Diana's Dodge Biohazard

The Best of Car Talk Dec 20, 2025 36 min
0:00
0:00

About this episode

Diana from Indiana calls in with a perplexing issue regarding her 1985 Dodge van, which emits a noxious smell reminiscent of sewer gas after prolonged idling or driving. The Tapper brothers dive into a humorous yet insightful diagnosis, suggesting the odor may stem from a leaking transmission cooler line onto the exhaust system. The episode is filled with light-hearted banter, car advice, and a puzzler that keeps the listeners engaged. The mix of automotive wisdom and comedic relief makes for an entertaining hour.

Filter:
|
Technical Too Afraid to Ask
Car

Simplex Automobile

"... we maybe we can have some other little wisdom of automobile mechanics, for example. Wisdom of there are lots ..."

The Simplex Automobile is an old car from the early 1900s that was known for being fancy and well-made. It’s important in car history because it helped shape how cars are built today. People like to talk about it because it's rare and has a unique look.

Car

Fisker Ocean

"...are you? Where's Arcada? Arcada is on the Pacific Ocean way up north about as north as you can. Oh, yeah,..."

The Fisker Ocean is a new electric SUV that runs on batteries instead of gasoline, which is better for the environment. It's designed to be stylish and uses materials that are good for the planet. People talk about it because it's a cool option for those wanting an electric vehicle.

Car

Plymouth Crickets

"...bout another block, it starts. And it sounds like crickets at first. And then it gets a little louder. And w..."

The Plymouth Cricket is a small car that was made in the 1970s and was popular because it was cheap and saved on gas. It looks a bit different from modern cars, and people talk about it because it reminds them of a time when small cars were very common. It's a fun piece of car history.

Car

Volvo 1982

"It's a 1982 Volvo with a manual transmission and a sunroof. Oh, 82 Volvo."

A 1982 Volvo is an older car model, which might have different features and maintenance needs compared to modern cars.

Term

manual transmission

"It's a 1982 Volvo with a manual transmission and a sunroof."

A manual transmission is a system in a car that lets you change gears yourself, usually using a stick and a pedal, instead of the car doing it automatically.

Term

sunroof

"It's a 1982 Volvo with a manual transmission and a sunroof."

A sunroof is a window in the roof of a car that you can open to let in fresh air and sunlight.

Part

brake caliper

"I believe a sticking brake caliper."

The brake caliper is a part of the car's braking system. It helps squeeze the brake pads against the wheel to stop the car.

Part

brake pads

"So you stepped on the brake, the pads moved against the disc and they stuck there. They didn't retreat from that position."

Brake pads are the parts that push against the round metal disc when you press the brake pedal. If they get stuck, they can make noise and not work properly.

Part

brake disc

"So you stepped on the brake, the pads moved against the disc and they stuck there. They didn't retreat from that position."

The brake disc is the round metal part that the brake pads press against to stop the car. It's important for making sure the brakes work well.

Term

bad belt

"I see there was sticking brake caliper or it's a bad belt."

A bad belt in a car usually means that a rubber belt that helps run parts of the engine is broken or worn out. This can cause problems with how the car runs.

Brand

Ford

"...when Ford screws up and all the paint that's peeling off their cars, what's the right thing to do?"

Ford is a well-known car company in the United States that makes many types of vehicles, including trucks and cars. They're famous for models like the Ford F-150 truck and the Ford Mustang sports car.

Car

Jeep Wrangler

"So I, you know, first time in my life, I got a new car. 1999 Jeep Wrangler this year with a soft top."

The Jeep Wrangler is a tough vehicle made for driving off-road. The 1999 version is known for being very durable and has a soft top that can be removed for an open-air experience.

Car

Dodge B150

"You said a van. It's like a B-150 van or something. This is a full-size van."

The Dodge B-150 is a big van that was made a long time ago and is great for carrying lots of people or stuff. Many families and businesses liked it because it was roomy and useful. People talk about it because it reminds them of the good old days of big vans.

Term

three-quarter-ton

"This is a full-size van. Three-quarter-ton has 170,000 miles on it."

A three-quarter-ton vehicle can carry about 1,500 pounds of weight. It's a way to describe how much stuff you can load into the vehicle, often used for trucks and vans.

Term

carburetor

"And it's got the carburetor standard, Chrysler electronic ignition, no computer."

A carburetor helps engines get the right mix of air and fuel to run properly. It's mostly found in older cars, as newer ones use a different system called fuel injection.

Term

Chrysler electronic ignition

"And it's got the carburetor standard, Chrysler electronic ignition, no computer."

Chrysler electronic ignition is a system that helps start the engine by using electronics instead of just mechanical parts. It makes the engine run better and more reliably.

Term

V8 engine

"V8 engine."

A V8 engine is an engine with eight cylinders that are arranged in a V shape. It's known for being powerful and is often used in sports cars and trucks.

Part

radiator

"When did you have the radiator replaced? Here's the question."

The radiator helps keep the engine cool by removing heat. It's important for the engine to run properly and avoid damage.

Part

automatic transmission fluid

"How often do you add automatic transmission fluid to it? Never."

Automatic transmission fluid is like oil for your car's automatic transmission. It helps the transmission work smoothly and keeps it from getting damaged.

Part

exhaust system

"And they did an entire check on it. Check on our exhaust system. There's no leaks."

The exhaust system helps get rid of gases produced by the engine. It includes parts that clean the air and direct it out of the car.

Part

catalytic converter

"if you had driven over a skunk who's guts got on the exhaust system like the catalytic converter and the exhaust pipes..."

The catalytic converter is a part of the car that helps clean the air by changing harmful gases into less harmful ones before they leave the car.

Part

muffler

"You put the muffler and tailpipe on it. Struggling."

The muffler is what makes your car quieter by reducing the noise from the exhaust gases. It's part of the exhaust system.

Term

transmission cooler lines

"...one of the transmission cooler lines is actually leaking a small amount of transmission fluid onto the hot exhaust pipes. That's why I thought you were going to ask her, when did you replace the radiator?"

Transmission cooler lines are tubes that help keep the transmission fluid cool. If they leak, it can cause problems with the car's transmission.

Part

dipstick

"Take, pull out your dipstick. Okay."

A dipstick is a long, thin tool that you pull out of the engine to check how much oil is inside. It's important for keeping the engine running smoothly.

Term

hot tailpipe

"with the engine hot, in other words, the car's been running. Put a drop of this on the hot tailpipe."

A hot tailpipe is the part of the car that lets out exhaust fumes after the engine has been running. It's hot because the engine heats it up while working.

6 cars featured

Request an Explanation

Heard something you'd like explained? We'll add it to this episode.

Sign in to request explanations for terms you heard.

Want to learn more?

Browse our glossary for plain-English explanations of automotive terms, jargon, and concepts.

Explore Terms

Help improve this episode

See something that's not quite right? Our annotations are AI-generated and can sometimes miss the mark. Click the flag icon on any annotation to suggest a correction.

Report incorrect info
Suggest better explanations
Flag missing cars