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Auto | Under the Hood | Other Systems

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

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How are hot and cold plugs different in ignition systems?

The difference between hot and cold spark plugs lies in their ceramic insulation. Learn how hot and cold plugs are different in ignition systems in this article.


Can your car tell you when the light's about to change?

 Can your car tell you when the light's about to change?

Can your car tell you when the traffic light is ready to change? Learn about Audi's Project Traffic Light Online system at HowStuffWorks. See more »

How Apple CarPlay Works

 How Apple CarPlay Works

Apple CarPlay completely integrates the car and the iPhone. Learn more about Apple CarPlay at HowStuffWorks. See more »

How the Open Automotive Alliance Works

 How the Open Automotive Alliance Works

Google wants to get its Android technology much deeper into the car. Learn about the Open Automotive Alliance at HowStuffWorks. See more »

How Paintless Dent Removal Works

 How Paintless Dent Removal Works

Is learning paintless dent removal really worth your investment in time and money? Find out if you've got 'the magic metal touch' at HowStuffWorks. See more »

How Air Suspension Systems Work

 How Air Suspension Systems Work

Do you know How Air Suspension Systems Work? Keep reading to learn about cars and discover how air suspension systems work. See more »

How an Air-cooled Engine Works

 How an Air-cooled Engine Works

Most modern cars use a water-cooled engine with a radiator, hoses and a water pump. Is an air-cooled engine a better idea? See more »

How does a timing light work?

 How does a timing light work?

How does a timing light work? REad about timing lights and how they help your car run at HowStuffWorks. See more »

How does a positive crankcase ventilation (PCV) system work?

 How does a positive crankcase ventilation (PCV) system work?

How does a positive crankcase ventilation (PCV) system work? Read about PCV systems and how they keep your car running at HowStuffWorks. See more »

How an Engine Lubrication System Works

 How an Engine Lubrication System Works

Keep your car's engine lubricated is key to maintaining performance over the long run. Read more about engine lubrication systems at HowStuffWorks. See more »

What does a harmonic balancer do?

 What does a harmonic balancer do?

What does a harmonic balancer do? Learn how harmonic balancers solve the problem of crankshaft vibrations at HowStuffWorks. See more »