Vibration under acceleration
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8th Gear
Joined: Jul 2023
Posts: 8
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Vibration under acceleration
Good ol 1995 f150 4x4 started vibrating under acceleration around 30 to 45 mph, I can get it to stop by either hard gassing it or braking and it doesn't really vibrate going 65+, it feels like it's coming from the passenger side wheel but recently on unrelated notes I've replaced: tie rods, ball joints, wheel bearings and the p/o replaced the radius arms/ bushings within the past 5ish years.
Currently I've just got plans for it to be aligned in the morning but I do not know what else it could be.
As always thanks yall.
Currently I've just got plans for it to be aligned in the morning but I do not know what else it could be.
As always thanks yall.
Tuned
Joined: May 2019
Posts: 480
Likes: 141
From: NJ
Almost certainly driveline related. 35MPH is a wierd one, generally vibration is at speeds below that if caused by angles/phasing, and above 50 if caused by U-joints. So this could be either or both. First thing I'd look at is trans mount. Then motor mounts (best way to check is look for even gaps around the edge of the fan), then rear suspension. One of these (link) is a cheap tool that's INVALUABLE for this test. Then look real close at the U-joints- not all bad U-joints have play, so this can be difficult. Generally if any of them have rust stains or a witness mark around the edge of the seals, they're shot and you'll find diagonal grooves worn into the cross.
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Airman1989
1999 - 2003 7.3L Power Stroke Diesel
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Aug 9, 2023 03:40 PM
