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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

Vibrations

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Old Dec 24, 2021 | 06:53 PM
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Catfish420's Avatar
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Default Vibrations

Hello,

Hoping someone could offer a sense of direction for me. 2002 F150 4.6L

I've had this truck for about a year now. It's always had a vibration at certain speeds. Nothing is felt in the steering wheel. I have recently replaced the tires and had them balanced, and a front end alignment. Was hoping that was the problem but its continuing. Only vibrates at 40 mph, stops at 45. Then continues at 65 with a humming sound. Stops vibrating at 70 mph but humming continues.

Not sure what the problem may be. Any feedback would be appreciated. Will be glad to answer any questions you may have as well.
Thanks.

Last edited by Catfish420; Dec 24, 2021 at 07:21 PM.
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Old Dec 24, 2021 | 11:17 PM
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Assuming that it is rear wheel drive, the first thing I would check is the universal joints of the driveshaft, the second thing would be check all of the wheel bearings (Front and Rear) and finally I would check for play in the pinion gear bearing in the differential.
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Old Dec 25, 2021 | 03:50 PM
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Size of truck, manual or auto, 2WD or 4WD, acceleration, coasting, or decelerating, would be good to know.
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