'Thump' when moving forward
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'Thump' when moving forward
Hey all -
'99 SD, V-10 automatic. When I take off from a light I feel this 'thump' in the truck, almost like if an object in the bed was sliding back and hitting the tailgate, but not as severe. Is this the slip joint noise I've read about?
Thanks in advance.
'99 SD, V-10 automatic. When I take off from a light I feel this 'thump' in the truck, almost like if an object in the bed was sliding back and hitting the tailgate, but not as severe. Is this the slip joint noise I've read about?
Thanks in advance.
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
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From: Grand Lake, La.
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Being you have a truck still in warranty, I would let the dealer take care of this. Seems young to be having dry slip joint.
Post Fiend
Joined: Sep 2003
Posts: 6,096
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From: Mesa AZ
That is what I would think. Here is the how to. Slip joint regreasing
- Make SURE you chock the wheels before disconnecting the driveshaft. You don't want your truck rolling down the road/driveway...or worse, over you while you are under the truck
- I use Super White Grease from NAPA. Lasts longer than the Ford grease...
- Shift into neutral to make it easier to R&R the driveshaft
- Check the U-joint bolts a day or two later to make sure they aren't working themselves loose.
- Don't over-grease. Too much will have a hydro lock effect and can damage other parts of your drive-train. Test by inserting the collar all the way down onto the splined shaft to make sure it has full travel.
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Thanks for all the responses guys. For whatever reason, I can't open the TSB list in the Tech Section here at work. Someone told me there was a TSB for this.
The fix is obviously as simple as falling out of bed. Never in a thousand years would have thought it was the culprit though.
The fix is obviously as simple as falling out of bed. Never in a thousand years would have thought it was the culprit though.
Postmaster
Joined: Oct 2008
Posts: 3,924
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From: Richmond BC
its more of a annoyance issue then a safety or need to have repaired thing, when it comes to the slip joint "thump" issue..
wether you fix it or not, is really just a personal call.
wether you fix it or not, is really just a personal call.
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Posting Guru
Joined: Nov 2010
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Remember the first time I felt that thump immediately assumed the trans or something was about to always thinking the worst oh and you have seen my face when the speed sensor thing on top of the back axle went bad holychit man
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Personally, I find it quite annoying but now I'll be able to live with it until I have a free day off to deal with it.
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