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2016 Makes Clunk at Rear End When You Hit a Bump

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2016 Makes Clunk at Rear End When You Hit a Bump

  #1  
Old 10-25-2016, 09:31 PM
wfoskir
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2016 Makes Clunk at Rear End When You Hit a Bump

Does anyone else have this noise/problem?
When I am driving and hit a bump in the road, especially when the rear tires contact it square. I hear a clunk at the rear end. Sounds like suspension, loose tailgate...
My truck is a 2016 F250 Crew Cab Short Bed. It has a factory installed fifth wheel hitch. I have looked at the obvious, spare tire, loose bolts... I removed the tailgate and it still makes the sound. I removed the insert in the receiver, still makes the sound. No goose neck ball in fifth wheel hitch. Checked bed bolts. Cant find it. Drives me crazy.
I also have a 2008, exact same truck, 200,000 miles, no clunking. I have driven in my friends 2014 F350 Crew Cab Long Bed, it clunks. Dealer pulled a new truck off the lot today, took a drive, it clunks. WTF! Dealer can't find it and confirms there is a clunk.
I hope someone out there has heard this and has a fix.
Thanks
Mario
 
  #2  
Old 10-25-2016, 09:58 PM
lostintexas
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Mario, I have the same truck and haven't noticed it but only have 1300 miles. I'll try to pay attention next time I'm out and see what I hear. How loud? Metal on metal or a padded clunk?
 
  #3  
Old 10-25-2016, 10:12 PM
wfoskir
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It is more of a metal on metal sound. I only have 12,500 miles.
 
  #4  
Old 10-25-2016, 10:13 PM
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My 14 has had a clunk in the front end since I bought it new...57,000 miles later and hasn't caused an issue yet. I'll know what it is whenever it breaks.
 
  #5  
Old 10-25-2016, 10:21 PM
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Lose shock or spare tire. Get under it and have another jump in the box and observe for lose components.
 
  #6  
Old 10-26-2016, 06:19 AM
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Is that the infamous Super Duty clunk?

Slip joint regreasing
 
  #7  
Old 10-26-2016, 07:10 AM
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No clunks on mine with 23k miles.
 
  #8  
Old 10-26-2016, 07:46 AM
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No clunks here.
 
  #9  
Old 10-26-2016, 08:04 AM
seville009
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Check your rear shock mount bolts at the top. I had one lose that was driving me nuts trying to figure out where it was coming from.
 
  #10  
Old 10-26-2016, 08:36 AM
wfoskir
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Spare tire is not the problem. I personally have not checked the shocks but I will today. The truck has been at the dealer for 5 days
 
  #11  
Old 10-27-2016, 10:05 PM
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I drove mine and purposely aimed for the bumps and never heard a clunk. Good luck on the diagnosing and keep us posted.
 
  #12  
Old 10-29-2016, 06:01 AM
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Mine had 36K on it and the rear shock worked itself lose.
 
  #13  
Old 01-01-2017, 09:27 PM
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Well it took me a while but I found the clunk. My truck has overload springs from the factory, my 2008 does not. There is a strike plate for the overload springs that has a plastic, probably for the spring to slide on and to reduce noise. I took a piece of foam and put it between the spring and plastic piece on the strike plate. I then taped it to the strike plate for a test. The clunk is gone.
So i have figured out what makes the clunk. I just have not yet figured out how to fix if permanently and have it look good. The plastic pieces on the strike plates are a bit loose, so I was thinking of shining those tight. Maybe will work.
I was also thinking of a rubber piece on the strike plate, but then the spring will likely not slide and probably rip it off.
Any ideas out there? Maybe some has made a fix already?
Thanks Mario
 
  #14  
Old 01-02-2017, 09:48 AM
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Can you post a pic? I ask because I had rubber bump stops (for lack of a better description) on my 2011 F350 rear suspension that had rotted away, so I replaced them. I discovered them when I was searching for the source if a rattle somewhere (turned out to be a loose shock mount)
 
  #15  
Old 01-02-2017, 07:53 PM
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I also have the clunk! Only from rear and only when hitting a sizeable bump like a sunken culvert and only when hit square. Mine is 2016 250 with gooseneck/5th wheel factory hitch and overload springs from camper package. I have less than 1000 miles on mine and don't really drive it in winter ( bought end of September) so I haven't taken time to look for it yet. I did however iinstall airbags last week and did not notice anything loose while under it for a few hours. I will have to look closer when it warms up again as it in in my pole building but no heat.
 

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