Ford F150 Fan Clutch Noise

Excess fan noise at high speed is caused by the same problem a seized fan clutch.

Ford f150 fan clutch noise.

This can cause bearing damage radiator damage if the blades flex too far or even shatter a plastic fan. 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. Any more than that could compromise the efficiency of the unit. I often can t hear the flowmasters at idle.

If it does move to the next step. My 97 4 6 truck makes noise. It s happened after running for about 1 2 minutes and it ll happen after driving a while as well so it s not. If it does not engage you have a bad fan clutch.

Bhurry turn your ac off and see if the fan still stays on. I think it s the fan clutch. It doesn t look like any fluid is leaking. The loud sound could come from your fan clutch for the same reason your fan stays on.

Loose rattling pieces send a loud and clear message that you need to have your fan clutch replaced. 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. It s a rotational kind of whooshing noise not rpm dependant sounds like it s coming from the front of the engine. It s been running a very loud fan noise will kick on intermittently for about 10 15 seconds and then turn itself back off again.

It should kick in once the engine reaches operating temperature and shut off after cooling the engine for a bit. In most cases fan blades are designed to flex up to 1 2 inch 1 3 cm. Silicone fluid leaking from the fan clutch would cause this problem. Let us know what engine size your f 150 has so that we can possibly get more information for you.

Give the water pump hose a quick jostle as well to see if the problem might lie there. Fan spins after engine shut down might indicate a weak clutch.