Question about 2004 Ford F350

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My fan want to race or speed up when I pull away from a stop. It is like when I am pulling a load up a grade and the fan speeds up to keep the engine cool. why would it be doing this?

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  • larrygoodeno Sep 26, 2009

    Why would I have just lately just noticed it? I bought the truck new in 04 and it seams that it just started doing this.


  • larrygoodeno Sep 26, 2009

    It has just turned 134,000 so this may be the reason

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  • Master
  • 1,884 Answers

This because when the engine is cold or not hot, there is little need for the fan to cool it. But when the engine gets hotter the need to cool it increases and the fan takes off. As the need increases further so does the speed of the fan upto a limit. So there is nothing to worry about as long as the fan is working. You should however,worry if the fan does not run when you have run the engine up a slope. Actually the fan runs even when you have switched off the truck till the engine cools to a certain level of temperature.

Posted on Sep 26, 2009

  • Vinay Tevatia
    Vinay Tevatia Sep 26, 2009

    One may be. That the truck is getting older now and needs more cooling that what it did before.

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