2002 F250 7.3 Wind noise

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Jul 24, 2018 | 09:10 AM

Bobby J Hepner

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Cross-Country

Joined: Jul 2018

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2002 F250 7.3 Wind noise

Hey there guys!! So I know it’s hot as heck in Texas it was 109 yesterday and 107 the day before but I started hearing this noise while driving. So I’m headed down the highway doing 80 and it’ll sound like the truck is revving itself but obviously not cause the cruise control is set but it gets loud and sounds like if you were reviving it and then I hear this partial chirp noise? What the heck is this? The chirp will be consistent but like 2-3 secs apart. If I let off and go a little slower it will stop chirping but then when I speed back up it starts again. I don’t know how else to describe it

thanks,

bobby

Jul 24, 2018 | 09:48 AM

Deuce40s

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Joined: Oct 2013

Posts: 1,039

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From: NC

Could be any of your HVAC vents. Have you tried adjusting air flow direction or turning it all off?
Could be windshield wipers. Try driving with no wiper blades on.
Your truck is older so it could be any gaskets around the front losing their strength. You could use painter's tape around the windshield to eliminate it, or tape around any of the doors.

Jul 24, 2018 | 04:43 PM

Bobby J Hepner

Thread Starter

Cross-Country

Joined: Jul 2018

Posts: 50

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Quote:

Originally Posted by Deuce40s

it’s defiantly something from the engine just not sure what

Jul 24, 2018 | 08:39 PM

irydasteelhorse

Tuned

Joined: Nov 2012

Posts: 253

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From: billings mt

clutch fan??

Jul 25, 2018 | 11:28 AM

jws4621

Junior User

Joined: Jul 2016

Posts: 60

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From: Amarillo, Texas

I would bet on the engine fan. The clutch will chirp when it looses grip. I have had it happen on mine. Your clutch might be wearing.

Jul 25, 2018 | 04:23 PM

MTalley

More Turbo

Joined: Jul 2011

Posts: 594

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From: Full-time RV

It's hot and your fan clutch is engaging (the "revving itself" noise) to add more cooling power. The chirping sound is most likely the fact that the fan pulley has been worn smooth. The 7.3 runs the smooth (non-ribbed) side of the serpentine belt around the fan pulley. Over time, it gets really smooth and slick and starts slipping. My old 2002 7.3 would do that especially under load (pulling my 5th wheel in hot weather). The dealer put a new fan pulley and belt on it and solved the issue.