#2641: How Cheap is Too Cheap?
The Best of Car Talk
The Best of Car Talk May 23, 2026
#2641: How Cheap is Too Cheap?

#2641: How Cheap is Too Cheap?

Annotations will appear as you listen

0:00
37:39
#2641: How Cheap is Too Cheap?
Term

shift it without going through the restart process

Some cars won’t let you shift normally until they’re fully “ready.” If you follow the right steps, you can skip the extra start/reset steps.

Term

put it in park

“Park” is the gear position that helps keep the car from rolling. In this story, the car won’t let the person select Park unless they do specific steps.

Term

emergency brake

The emergency/parking brake is what you use to keep the car from rolling when it’s stopped. Here, it’s being used because the shifter won’t behave normally.

Term

switch attached to the brake pedal

Cars often have a sensor on the brake pedal that tells the car “the brake is pressed.” The car uses that signal to decide when it’s safe to move the shifter.

Term

pin that inhibits the shifter from moving at all

Some cars have a safety lock that prevents the shifter from moving unless conditions are right. If that lock gets stuck, the shifter won’t move normally.

Term

interlock mechanism

An interlock is a safety “rule” built into the car. It makes sure you can’t put the car into a driving state unless you’re also pressing the brake.

Term

lock-out mechanism

A lock-out mechanism is like a built-in blocker. It stops the car from doing something dangerous unless the right safety step happens first.

Concept

runaway acceleration problems

Runaway acceleration is when a car speeds up on its own, without the driver meaning to. The idea is that safety systems were added to prevent the car from moving unless you’re braking.

Brand

Audi

Audi is the car brand mentioned here. The hosts are talking about older safety issues from the 1980s that led to added protections in some cars.

Nissan Maxima
Car

Nissan Maxima

The Nissan Maxima is a regular-sized car (a sedan) made for everyday driving. A 1993 model is an older version, and 150,000 miles means it has been driven a lot over the years. People mention it to talk about whether older cars can still stay on the road.

Term

air mass meter

This sensor measures how much air is getting into the engine. The car uses that info to add the right amount of fuel so the engine can run smoothly.

Term

intake manifold

The intake manifold is where the engine collects and routes incoming air to the cylinders. If the air path or sensor connection is damaged, the engine may not know how much air it’s getting and can stall.

Term

air filter

The air filter keeps dirt out of the engine’s air supply. If it’s not right, the engine can run poorly because the air it gets isn’t what the system expects.

Term

bellows

In this context, the bellows is a flexible connector (often rubber or accordion-like) between the air mass meter and the intake manifold. Cracks can open under vibration (like going over bumps), causing the sensor signal/air path to become temporarily wrong and trigger a shutdown.

Term

tension

Tension is the force that a rope (or cable) pulls with. If you hang something from a rope, the rope is under tension all the way along.

Term

mechanical advantage

Mechanical advantage means you can use a system (like ropes) to multiply force. So you might push or pull with less effort and still get a bigger result.

Term

Newton

A newton is a way to measure force—basically how hard something is pulling or pushing. The numbers they mention are comparing input force to output force.

0:00
37:39