Other Systems

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

What is the difference between a normal lead-acid car battery and a deep cycle battery?

What is the difference between a normal lead-acid car battery and a "deep cycle" battery? I have a trolling motor on my boat and I don't see why I can't use my car's battery with it rather than spending another $80 on a deep cycle battery.

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

Audi's Project Traffic Light Online uses the Audi connect Online system to read the signals from a city's central traffic computer. Will this be the end of waiting at tedious traffic lights?

How Apple CarPlay Works

CarPlay debuted at the 2014 Geneva Motor Show, and unlike that rigged-up system you've got going now with your car stereo, your phone and about seven cables and cords, CarPlay completely integrates the car and the iPhone.

How the Open Automotive Alliance Works

Google isn't content with simply syncing smartphones anymore -- the company wants to get its technology much deeper into the car. Will the Open Automotive Alliance be successful?

How Paintless Dent Removal Works

If you've ever watched a real pro in action, paintless dent removal appears deceptively simple. But is it really as easy as it looks?

How Air Suspension Systems Work

When you think of your car's suspension, you probably envision creaky metal coils, right? That's not the only type of shock absorber available to make your ride smooth -- take a look at air suspension systems.

How an Air-cooled Engine Works

Most modern cars use a water-cooled engine with a radiator, hoses and a water pump to circulate coolant throughout the engine. Air-cooled engines want none of this.

How does a timing light work?

Timing lights come in a few different shapes and sizes, and range in features from bare-bones functionality to lots of bells and whistles. Do you know how a timing light works?

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

Just seeing the phrase "positive crankcase ventilation" probably makes your head hurt, because it sounds, well, complicated. But it really isn't all that complex.

How an Engine Lubrication System Works

Unlike the ever-present ads for drugs on television, there are many pleasant side effects of keeping your car's engine lubricated with oil. Find out what it takes to keep things moving.

What does a harmonic balancer do?

A tremendous amount of force is applied to your car's crankshaft while you're driving. The result is lots of crankshaft vibration. How does a harmonic balancer solve the problem?