Whine on Deceleration
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Mountain Pass
Joined: Jul 2004
Posts: 110
Likes: 1
Whine on Deceleration
I have a 2000 5.4 4x2 with about 118k. the pinion seal was leaking. I replaced the seal and added proper amount of 75/140 diff fluid as listed on the tag. I marked the pinion nut, flange and housing, so I could count the number of turns it took to remove nut. I put back the same but now I have a whine at low speed on deceleration. under normal throttle and at higher speeds it sounds just fine. Its just on deceleration and at 5mph or less. The sound was not there before I did the new seal. Any ideas? thanks.
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
You upset the bearing pre-load pressure and depth.
Try tightening the nut a fraction of a turn and see what you end up with.
Otherwise you would need to start over again with a new 'crush' sleeve' and tighten to spec.
Look up how this all works so you see what it's about.
Good luck.
Try tightening the nut a fraction of a turn and see what you end up with.
Otherwise you would need to start over again with a new 'crush' sleeve' and tighten to spec.
Look up how this all works so you see what it's about.
Good luck.
Fleet Mechanic
Joined: Jan 2011
Posts: 1,493
Likes: 21
You upset the bearing pre-load pressure and depth.
Try tightening the nut a fraction of a turn and see what you end up with.
Otherwise you would need to start over again with a new 'crush' sleeve' and tighten to spec.
Look up how this all works so you see what it's about.
Good luck.
Try tightening the nut a fraction of a turn and see what you end up with.
Otherwise you would need to start over again with a new 'crush' sleeve' and tighten to spec.
Look up how this all works so you see what it's about.
Good luck.
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