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14/04/2024 7:22 pm
Topic starter
2013 F150 STX 4WD 170k miles
Mechanic had replaced electric power steering unit and rear diff front seal prior to noticing issue.
Noise is only noticeable with windows closed, varies with ground speed, they could not locate noise with sensors.
Low pitched, believe it is more vibration than anything else, no squealing.
Vehicle does not pull to one side.
All fluid levels good/replaced.
They put in a used transfer case, no change.
1 Answer
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15/04/2024 5:11 am
P well I would assume the vibration would come from either the drive shaft going to the back or the transmission itself since it goes away in four-wheel drive.
