what's inside: under the hood channel

 

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.

Car Part Longevity

Car part longevity is something that affects all car owners. Car part longevity depends on a few different factors, including where you live. In this section you'll find articles dedicated to car part longevity. See more »

Diagnosing Car Problems

Diagnosing car problems may seem like a daunting task but it's doable with a little know-how. Diagnosing car problems becomes easier once you understand what to look for. In this section you'll find articles dedicated to diagnosing car problems. See more »

Explore These Categories:

Engines

The Car Engine Information Channel explores engine performance, maintenance and new fuel technologies. Learn how car engines work. See more »

Explore These Categories:

Exhaust & Emissions

This section can help you keep your exhaust system working properly. Learn how mufflers, catalytic converters and oxygen sensors work. See more »

Options

Your car may come with many standard features, but upgrade and accessory options are endless, starting with the windshield wiper blades. See more »

Steering & Suspension

The Car Steering and Suspension Channel explains the systems that help keep your car driving smoothly and precisely. Learn about auto suspension and steering. See more »

Transmissions & Drivetrain

Upkeep of your transmission may save you money in the long run. Learn manual and automatic transmission basics, then move on to clutches, differentials and torque converters. See more »

Vehicle Maintenance

Vehicle maintenance can increase the lifespan of your vehicle. Regular vehicle maintenance can seem like a lot of work, but it will usually save you money in the end. In this section you'll find articles dedicated to vehicle maintenance. See more »

Wheels

How do 30 pounds of air in your tires hold up two tons of car? What’s the technology behind the tire and how do wheels work? Learn it all in the Car Wheels and Tires Channel. See more »

Other Systems

Learn about the various electrical and other systems that lurk under your hood, including cooling systems, ignitions, wires, fuses and connectors. See more »

featured articles

FPO

How Four-Wheel Drive Works

Four-wheel drive can be useful in rough weather or terrain. A lot of drivers use it just to make everyday errands a little more exciting, nothing quite like jumping a few curbs in a supermarket parking lot. Find out how four-wheel-drive systems keep cars on solid footing.

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FPO

How Differentials Work

Car wheels spin at different speeds, especially when turning. The differential is what lets a car make turns with ease. Find out how this key component allows the wheels to rotate at different speeds.

FPO

How Mufflers Work

Every car out there has a muffler -- it performs the crucial job of turning thousands of explosions per minute into a quiet purr. Mufflers use some cool technology to dim the roar of an engine. Learn the principles that make it work.