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 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 Car Cooling Systems Work

How Car Cooling Systems Work

A car engine produces so much heat that there is an entire system in your car designed to cool the engine down to its ideal temperature and keep it there. Learn all about fluid-based cooling systems. See more »

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. See more »

How does the thermostat in a car's cooling system work?

How does the thermostat in a car's cooling system work? I had to test my thermostat today and was amazed as I watched it! See more »

What does the battery light on the dashboard mean?

The battery light on my car dashboard comes on whenever I am driving. How serious is this? The car seems to be working fine... See more »