4x4 noises

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Dec 24, 2014 | 08:00 AM

#16

MDSuperDuty

Cargo Master

Joined: Mar 2008

Posts: 3,098

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Quote:

Originally Posted by dramirez163

2009 f350 cc lb. v10. manual hubs and manual 4x4. when I put it into 4x4 high everything seems fine. but when I let off the gas and it decelerates it makes like a weird hum. I has just checkin it out and getting ready for winter. was on a long straight road so I put it in 4hi for a minute to check things out. kinda did it last year too but seems worse this year

I have the exact same "hum" when I decelerate in 4H. As soon as you let off the accelerator it starts. Accelerate again and no noise. I recall that I would need to be something around 30mph or more, but I could be wrong. Haven't driven my truck in a month as it takes the winter off in the garage. I'm in the midst of checking fluids but all seems normal.

Oct 24, 2015 | 10:32 PM

#17

Vacek7.3

New User

Joined: Oct 2015

Posts: 1

Likes: 0

I have a 2002 F250 4x4 that all fluids have been changed, driver side wheel hub assembly 2 times. I have a loud humming noise coming from the front of the truck when decelerating at highway speeds......this isn't my first 4x4 and never had a humming noise like this ever in any other vehicle. Im thinking of reaplacing ujoints on the front axle and switching out all ball joints. Anyone have a solution? Thank you