New problem Thumping noise
Elder User
Joined: Dec 2001
Posts: 582
Likes: 5
From: Kelowna B.C.
They are not that hard to do. I have change them on a few differewnt trucks. Change the u-joint on that side of the front axle while its apart. It would be a bummer to have to rip it all apart again when the u-joint fails before the balljoints do.
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Senior User
Joined: Nov 2004
Posts: 157
Likes: 0
From: Sheboygan WI
The platic isolator is metioned in this thread. I have not looked if mine are there or not. I would think they would be inexpensive and easy to replace.
I was also told by the Ford garage that they make anti-rattle brake pad clips. And that if the noise goes away when I brake, that I should check into these clips. However, I still have the thump when I brake, so I can knock that off my list.
I was also told by the Ford garage that they make anti-rattle brake pad clips. And that if the noise goes away when I brake, that I should check into these clips. However, I still have the thump when I brake, so I can knock that off my list.
New User
Joined: Jul 2004
Posts: 20
Likes: 0
Anytime I have had this problem, I check the shocks first (especially if they are non OEM meaning they have been replaced). The top nut on the shock will look tight, you cant get it to wiggle by hand, but put a wrench on it and tighten it down more and sometime that will fix it. It won't look loose, but it is when the suspension extends and compresses.
Post Fiend
Joined: Jan 2000
Posts: 5,330
Likes: 17
From: Dryden, ON, Canada
My 00 has the thump under the floorboard, I know it's the swaybar end link, it's quite shot...
Balljoints, by my standards, even the parts alone aren't cheap(and I'm used to working on heavy trucks) but, this is 1 ton stuff we are dealing with here. Did them in my truck.
Balljoints, by my standards, even the parts alone aren't cheap(and I'm used to working on heavy trucks) but, this is 1 ton stuff we are dealing with here. Did them in my truck.
Last edited by 82F100SWB; Nov 25, 2004 at 08:34 AM.
Postmaster
Joined: Nov 2003
Posts: 3,595
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From: Utah County, UT
Originally Posted by steve95gt
My 01' f-350 4X4 has the same sound. It only happens when I hit the brakes to slow down. Its not immediate. More towards the end of the braking.
I guess its time to look under the truck.
I guess its time to look under the truck.
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New User
Joined: Sep 2004
Posts: 9
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From: Gladstone OR
97' Psd Thump
I had the same problem on my 97' F2250 HD, this may sound silly but it was the drivers side seat mount. It had come lose and when i hit a bump the seat would thump aginst the mount bolt. It all felt like the noise was comeing from under the floor board.
Postmaster
Joined: Nov 2003
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From: Utah County, UT
Fishman, that doesn't sound silly very plausable to me, but I can only feel the bump with my foot on the floor, can't really feal it in the brake pedal that why I don't really think the brakes are the direct cause.
Elder User
Joined: Dec 2001
Posts: 582
Likes: 5
From: Kelowna B.C.
I just put in a leveling kit. While swapping the front springs I noticed the beat marks where my passenger side shackel was hitting the body mount. Now with the new springs the thumping under the passenger side floor board is gone.
Laughing Gas
Joined: Jul 2003
Posts: 1,157
Likes: 1
From: Littleton, Colorado
As I posted back in November, do yourself a favor and check out your front sway bar end link bushings. I had them replaced twice under warranty. The factory bushings are junk. With the weight of the Diesel, petroleum contaminants and all the mystery chemicals that are on the roads, rubber doesn't last. I just replaced the sway bar and the end link bushings with polyurethane, and the difference is night and day.
Hope you get it resolved whatever it is.
Austin
Hope you get it resolved whatever it is.
Austin
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Senior User
Joined: Nov 2004
Posts: 157
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From: Sheboygan WI
Found the thumping problem!!!
I replaced the end links and the rubber bushings bushing on the front sway bar and the thumping is gone. The thumping was bad especially on rough roads. The noise felt like the tires were bouncing and the thumping was felt under my feet on the floorboard. The installation was easy and I had it done in less than an hour. Anyhow, the thumping is gone and the ride is solid. Parts werer $44.00 at the local Ford dealer.
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Although they did not contribute to the thumping, I’m still going to replace the shocks. I just turned 140,000 miles on my 99 F250 CC 4x4. Next week I’m having Rancho 17000 series shocks put on at the local Sears store. When I was under the truck I noticed that the rubber bushings were bad and the shocks looked original .
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Has anyone put the Rancho’s on a Crew Cab?
Dakrri
<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
fficeffice" /><o></o>Although they did not contribute to the thumping, I’m still going to replace the shocks. I just turned 140,000 miles on my 99 F250 CC 4x4. Next week I’m having Rancho 17000 series shocks put on at the local Sears store. When I was under the truck I noticed that the rubber bushings were bad and the shocks looked original .
<o
></o><o
></o>Has anyone put the Rancho’s on a Crew Cab?
Dakrri
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