2014 15k miles, ambient heat causes fan to come on undfer hood, what is that, and why does it come on?

Asked by Oct 11, 2015 at 02:08 AM about the 2014 Ford F-150

Question type: Maintenance & Repair

Can't find in owners manual. Normal driving does not cause fan to turn on, only when heat wave, as in Southern California, or long driving days.

2 Answers

When you drive on the highway, at...say... 60mph, or as slow as even 45 there is no reason to run a fan, The air-flow is plenty, more than enough to pass through A/C condenser and radiator and cool them. Now if you mean at idle, then ....sure, the fan will kick in to create air-flow. There is a sensor for that very reason

3 of 3 people found this helpful.
24,035

Take it to the dealer, or your favorite good mechanic and have them check it- is it overheating? They can explain it to you although Mr. Nut did a pretty good job-

1 of 1 people found this helpful.

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