Help solving annoying noise......
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Senior User
Joined: Oct 2006
Posts: 307
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From: Southern California
Help solving annoying noise......
I have searched and searched with no luck, so I am going to start a new post. 
Recently my Superduty developed an annoying clacking noise when I hit railroad tracks or anything that makes the rear suspension vibrate at low speeds. It sounds like metal on metal coming from the rear of the cab or under it. Initially I thought it was coming from inside the cab, but everything is tight.
I have crawled under the truck and tried to determine where the rattle is coming from. Swar bars, drive lines, exhaust and spare tire doesn't seem to be the issue. Cross members are tight.
Recently my Superduty developed an annoying clacking noise when I hit railroad tracks or anything that makes the rear suspension vibrate at low speeds. It sounds like metal on metal coming from the rear of the cab or under it. Initially I thought it was coming from inside the cab, but everything is tight.
I have crawled under the truck and tried to determine where the rattle is coming from. Swar bars, drive lines, exhaust and spare tire doesn't seem to be the issue. Cross members are tight.
Senior User
Joined: Jun 2007
Posts: 124
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From: brighton, ill
i had this same issue on my f150 could never find the problem, than purchased my f250 superduty and it was on it also turned out to be my hitch. i have a pintle combo hitch and it rattled at low speeds only. hope this helps.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Hitch, exhaust, shocks, spare tire, leaf springs, bumper. Lots of possibilities. Can you duplicate the noise by jumping up and down on the back bumper? Have you tried shaking everything you can get your hands on?
Freshman User
Joined: Jan 2006
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Not sure what type front suspension you have, but if you have leaf springs, look and you'll see there should be a plastic button or spacer between the leafs(the largest ones), if it comes out, or wears out, you'll get the clack sound. Also, if you have a trailer hitch that is not tight you'll get the same clack. Good luck noises can be transmitted along ways thru the body, driveline, etc.
Larry
Larry
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Senior User
Joined: Oct 2006
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From: Southern California
1. Removed my rapid hitch...no change.
2. Exhaust flexes at the rubbber hangers. Looks normal.
3. Jumping on bumber doesn't duplicate the sound.
4. I have been under the truck four time for 10-15 minutes trying to move everything. Everything is tight with the exception of the exhaust.
5. Purchased Bilsteins today from shockwarehouse. Can't hurt I guess.
Man - I'm at a loss. Hope the shocks do the trick.
2. Exhaust flexes at the rubbber hangers. Looks normal.
3. Jumping on bumber doesn't duplicate the sound.
4. I have been under the truck four time for 10-15 minutes trying to move everything. Everything is tight with the exception of the exhaust.
5. Purchased Bilsteins today from shockwarehouse. Can't hurt I guess.
Man - I'm at a loss. Hope the shocks do the trick.
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Senior User
Joined: Apr 2007
Posts: 147
Likes: 1
From: Porter, TX
I has the same "problem" in my 2007, and it was the sound of my trailer hitch bouncing in the receiver. I was using the oversized hitch for leveling bars, sway bars, etc, the one that weighs about 30lbs...good luck.
Senior User
Joined: Feb 2008
Posts: 303
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From: Central Washington State
sounds simple, but after tightening and spraying everything I could think might rattle, with no results, I discovered an ice scraper in the plastic tray behind my rear seat. Oh well....mine's fixed, good luck
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Checking springs and sway bars can be difficult. Have you visually inspected the springs real close to look for any hairline cracks? This is sometimes easier with a bunch of weight in the bed. Have you tried spraying down the springs & sway bar with a lubricant to see if that helps?
Do you have a turnover ball type gooseneck hitch where the upside down ball is hitting your sway bar?
Do you have a turnover ball type gooseneck hitch where the upside down ball is hitting your sway bar?