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Old 03-17-2020, 02:55 PM   #1
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Join Date: Mar 2020
Posts: 4
2001 International 3000 engine sound

My engine just started making a weird sound. Didnít notice until I got out at a stop. Itís loudest at the very front. Below is a link to a video where you can hear the sound. I point to the general area itís coming from... but itís basically just from right inside the front.

Is this a bad sound? Sounds like maybe a fan??? But I know nothing about Diesel engines....

DT-466 engine
Allison 2500 transmission

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Old 03-17-2020, 05:48 PM   #2
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Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,405
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
sounds like a pulley or water pump to me.
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Old 03-17-2020, 05:52 PM   #3
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Location: West Ohio
Posts: 2,657
Year: 1984
Coachwork: Bluebird
Chassis: International 1753
Engine: 6.9 International
Rated Cap: 65
That's a bearing going out or a slipping belt making that noise.
My build: The Silver Bullet
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Old 03-17-2020, 08:05 PM   #4
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Location: Columbus Ohio
Posts: 15,818
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
yeppers Booyah has it.. sounds like a slipping serpentine belt. or an idler pulley perhaps with a bad bearinf
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Old 03-17-2020, 09:09 PM   #5
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Thanks guys. We’re hanging tight at a truck stop for the night and taking it to a mechanic in the morning...

guess we’ll be delayed as we flee civilization...
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Old 03-18-2020, 07:07 AM   #6
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Join Date: Oct 2017
Location: Ashtabula, Ohio
Posts: 1,494
Year: 1996
Coachwork: Thomas
Chassis: International
Engine: T444E 7.3L
Let us know what they find.
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dt-466, engine diagnostics, help please!

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