Rattle/Thud up front
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Mountain Pass
Joined: Oct 2003
Posts: 126
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Rattle/Thud up front
2000 F-250 CC,SB, 4x4 PSD with 90K. A few weeks ago I was driving down a rough gravel road and heard a fairly loud rattle up front. After getting back on pavement it was gone. Now when driving under 50mph and hitting bumps in the road, I hear this annoying thud/rattle. The slower I go, the worse it seems to get. Last week I had the front shocks replaced, and told the shop to check the front for anything loose(tie-rod end, etc). The tech could find nothing wrong, so now I am confused. I know it is virtually impossible to diagnose a problem without seeing the truck, but any ideas where to check would be appreciated. Thanks guys
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Mountain Pass
Joined: Oct 2003
Posts: 126
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I noticed the rattle before I had the shocks replaced. While replacing the shocks the tech looked for anything that might be loose, but he claims he found nothing out of the ordinary. Thanks for the response.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
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From: Long Island USA
Did some of the gravel get caught up in the chassis or something somewhere???
Exhaust heat shields?
Or is it more of a deap metallic type thing?
Exhaust heat shields?
Or is it more of a deap metallic type thing?
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Post Fiend
Joined: Jan 2002
Posts: 5,859
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From: USA
Swaybar links,exhaust sheilds,Trackbar brackets or trackbar itself
chk to see if any of the spring isolators fell out(between the leafs and around the metal guide clamp)
Rich
chk to see if any of the spring isolators fell out(between the leafs and around the metal guide clamp)
Rich
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Senior User
Joined: Jan 2004
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From: Helmville MT
How about the plastic wedge ( for lack of a better term) (Spring isolators?) on the front springs? One on the front and one on the rear of each front spring. I had to replace mine at about 87k and I was getting a metal/metal sound.
mike in montana
mike in montana
Senior User
Joined: Jan 2004
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From: Helmville MT
The spring isolators are right where the spring bolts to the frame, between the two leaves. There is a hole in the bottom leaf that appears to be for a pin on the isolator to drop into to keep it from moving around. I think the original ones were orange - my replacement ones are white. They are covered in dirt currently and hard to see.
hope that helps,
mike
hope that helps,
mike
Thread Starter
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Mountain Pass
Joined: Oct 2003
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I just looked again, and found nothing like that. I found a "C" shaped clamp that goes around both leaf springs where they are bolted to the frame. It seems like something could be missing there, but it is the same on both sides. I guess I will have to take it in to get looked at because I can't stand the rattle anymore. Thanks for all of your help, it is appreciated.
Elder User
Joined: Feb 2004
Posts: 772
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From: Mount Airy, MD
I had the same frustation trying to diagnose a rattle in my '01. I tried everything, it sounded like it might be a heat shield, but what it turned out to be was my catalytic converter. Something broke loose inside of it and would cause a rattle when the engine was under load. Couldn't get it to make the noise any time other than when I was driving down the road. Check it out, worked for me.
