1999 - 2003 7.3L Power Stroke Diesel

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Clunk/vibration

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May 11, 2015 | 12:18 PM

#1

Karruda

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Freshman User

Joined: Apr 2015

Posts: 49

Likes: 0

From: Fall River, Ma

Clunk/vibration

Hey all I'm new to this website and also new to owning a truck. I'm a mechanic but work only on cars so I'm a little shy on diagnosing trucks. I have a 2001 7.3 f250 4x4 short bed, when I give it gas I can hear a clunk, when I let off of the gas I also hear a clunk. Also when traveling at high way speeds I can feel a strong vibration when I very lightly give it gas but the vibration goes away as I give it more gas. Any help is appreciated!

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Old

May 11, 2015 | 01:00 PM

#2

montanasteve

Senior User

Joined: Mar 2008

Posts: 337

Likes: 1

Check your driveshaft u-joints.

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Old

May 11, 2015 | 01:18 PM

#3

Karruda

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Freshman User

Joined: Apr 2015

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From: Fall River, Ma

Quote:

Originally Posted by montanasteve

Check your driveshaft u-joints.

Will do! Much appreciated

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Old

May 11, 2015 | 01:21 PM

#4

The Brad

Laughing Gas

Joined: Nov 2013

Posts: 868

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From: SoCal

I would also check the driveshaft carrier bearing. The rubber isolation could be shot.

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Old

May 11, 2015 | 02:59 PM

#5

F250_

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Joined: Nov 2006

Posts: 11,286

Likes: 263

From: North of Greenville

One last item is the splined slip yoke joint on the drive shaft... probably needs a little lube, which is more than likely what is causing the clunk.

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Old

May 11, 2015 | 07:49 PM

#6

Karruda

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From: Fall River, Ma

Replaced the 2 u-joints on my rear drive shaft and lubed the slip yolk, drives like a new truck! Thanks all

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