Ford F150 Fan Clutch Noise

Loose rattling pieces send a loud and clear message that you need to have your fan clutch replaced.
Ford f150 fan clutch noise. It s a rotational kind of whooshing noise not rpm dependant sounds like it s coming from the front of the engine. Start the engine raise the hood and wait for the fan to engage. A stuck fan clutch will cause excessive unnecessary drag on the engine which can cause a drop in power acceleration and fuel efficiency sometimes to a quite noticeable degree. 2009 2014 ford f 150 skip to main content.
A faulty fan clutch that leaves the fan permanently engaged will not only cause a noisy engine but can also cause a decrease in performance. This can cause bearing damage radiator damage if the blades flex too far or even shatter a plastic fan. Bhurry turn your ac off and see if the fan still stays on. Fan spins after engine shut down might indicate a weak clutch.
Give the water pump hose a quick jostle as well to see if the problem might lie there. It doesn t look like any fluid is leaking. Let us know what engine size your f 150 has so that we can possibly get more information for you. If it does not engage you have a bad fan clutch.
It should kick in once the engine reaches operating temperature and shut off after cooling the engine for a bit. Any more than that could compromise the efficiency of the unit. Many ford f150s around and including the 2015 model have insanely loud cooling fan noise that begins as soon as you turn the ignition on and stops only when. I often can t hear the flowmasters at idle.
I think it s the fan clutch. Silicone fluid leaking from the fan clutch would cause this problem. If it does move to the next step. The loud sound could come from your fan clutch for the same reason your fan stays on.
In most cases fan blades are designed to flex up to 1 2 inch 1 3 cm. It s happened after running for about 1 2 minutes and it ll happen after driving a while as well so it s not.