We show you how to wire in an electric fan relay kit with a thermostatic switch. If you've got an electric cooling fan on your classic car or hot rod and you want to know how to wire it with a relay, ...

Love it or hate it, wiring is a part of any project car. You may loathe the idea of installing relays, but without them, wiring would be much more difficult. HOT ROD ...

Whenever a Mustang's engine is modified to make more power, the demand on the cooling system increases. More power means more heat, and the limitations of the stock Mustang cooling system can soon ...

Not long after I began contributing to Hagerty eight years ago, I wrote a detailed four-part piece on electrical relays and how they work in cars. You can still find the articles here (Part I: Why We ...

The fan center’s purpose is to control when the indoor fan turns on. Before the integrated gas control board, the indoor fan on gas and oil furnaces would either turn on at the same times as the heat ...

Q: Our daughter borrowed our 2000 Jeep Grand Cherokee Laredo and when she returned home in the mountains, she noted that the electric fan by the radiator was still running. Evidently it ran for a ...