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Monthly Archives: August 2013

  • How Radiator Cap Pressure Affects Cooling

    Comments ON 2013 August 20
    by therealcoleq

    Flex-a-lite-radiator-capOne of the Monday Tech Quizzes that we posted the Flex-a-liteĀ® Facebook page was about radiator caps, and whether or not the pressure of the cap might help solve an overheating problem. As we tried to formulate a short answer for this question, we were reminded of how complicated the topic really is. So we decided a post on our blog would be the best way to provide useful information on the topic.

    First, the radiator cap is an important part of the cooling system. It is designed to hold a certain amount of pressure inside the system, and to release the pressure when it exceeds a pre-determined level. Why do you want pressure in the cooling system? Continue reading

  • Tips for Mounting a Flex-a-lite Fan Controller

    4 Comments 2013 August 6
    by therealcoleq

    Most of the Flex-a-lite electric fans come with either and Adjustable Thermostat Controller our Variable Speed Controller. While we've done a segment on wiring them, one of the common questions we get is where is the best place to mount them?

    That's going to depend on the vehicle, but Flex-a-lite owner and president, Lisa Chissus, offers some tips and guidelines in the video above.

    There are a couple of things to consider when choosing a location:

    • You will need it to be close enough to the radiator for the temperature probe to reach.
    • You want to keep it away from extremely high heat. Typically, on the radiator support or high and forward on an inner fender panel is good.
    • You will also want to mount it high in the engine bay to keep it away from road debris and excessive water that can splash up as you drive.
    • Finally, they are water resistant, but not waterproof. Do not mount them in a way that allows water to pool up around the terminals.

    Flex-a-lite fan controllers are designed to take the place of relays, and offer you the ability to adjust what temperature the fan or fans turn on at, ranging from approximately 160-240 degrees Fahrenheit. We match the proper controller with our fans to accommodate the amp load, and we provide either a fuse or breaker. If you want information about choosing the right controller for your application, check out this article.

    For more information, visit

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