Under the Hood

The Under the Hood Channel explores the systems that make your car function correctly. Learn about car parts and systems and how to do routine maintenance.


Think you need to have your oil changed every 3,000 miles? Think again.

Ever notice you see more tire debris on the side of the road during the hottest months of the summer? Could the heat have anything to do with it?

Even if you're not a car enthusiast, you might still want to consider one of these modifications to make your ride the best on the block.

You may be surprised to know that self-driving cars never go on country roads because so far companies have only done the necessary precise mapping on city streets. An MIT project is changing all that.

Have the right Volkswagen execs paid for lying to the public about their car's environmental standards and emissions?

You might think your car is fine for your upcoming summer road trip. But if it's more than 10 years old, you might want to think again.

Fighting the funk brought on by an animal decomposing inside your car engine can be hard, but not impossible. Here's how to do it.

Winter tires are very different from all-season and snow tires.

There are a lot of vanilla vehicles being churned out these days. What's the deal?

As many as a third of new 2017 cars didn't come with spare tires. So what's the deal?

Will the programming of truly driverless cars prevent them from violating traffic laws? That might actually make traffic move faster.

Will the world's first commercially available gas compression-ignition engine finally be a success?

2017 has been a crazy year for hurricanes, which means it could be a crazy year for flood-damaged cars hitting the market, too. How can you spot one?

Whether diesel- or gasoline-powered cars spit out more toxins depends on the pollutant measured, a new study says.

Autonomous vehicles could prevent a lot of car accidents from occurring. And that's good news — except for one particular population relying on organ donations.

Thanks to some open source software on the internet, other people are trying it too.

Putting 300,000 miles on a vehicle may seem like an impossible goal, but there are plenty of ways to extend a car's life span.

Racecar driver Sam Schmidt was paralyzed in a car crash in 2000. Nevada just issued him a first-of-its-kind license to take his special car on the road.

Graham is what you get when an artist, a trauma surgeon and a collision expert team up to imagine what humans would like if we evolved to fit cars.

People fall asleep, have heart attacks or are otherwise incapacitated while driving all the time. How does that work in the world of semi-autonomous and autonomous cars?

On May 7, Joshua Brown died while driving his Tesla Model S with the Autopilot system engaged. What, if anything, does that mean for the future of driverless cars?

A proposed bill in New York would give police access to drivers’ phones after car accidents. Yes, texting while driving is a problem — but could this be the solution?

The Goodyear Eagle-360 concept tire, a spherical design, was unveiled at the 2016 Geneva International Motor Show — a tire for future autonomous vehicles.

Scientists propose extracting carbon dioxide out of the atmosphere to make carbon nanotubes, and then using those to make batteries, also counteracting climate change.