2010 F-350 King Ranch Clunk Under Driverseat - FordTough.ca - Home of Canadian Ford Truck Enthusiasts

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post #1 of 4 (permalink) Old 10-08-2014, 05:01 PM Thread Starter
Join Date: Mar 2009
Location: Saskatchewan
Posts: 10
2010 F-350 King Ranch Clunk Under Driverseat

I have a 2010 F-350 King Ranch with around 70 000km on it and there is a clunk under the truck when driving highway speed and hitting a bump on the road or even at low speeds when I hit a big bump it will clunk. This is starting to drive me nuts had it at a ford dealer and a local mechanic nobody can find anything wrong with it. They have checked the front end and everything is tight. Has anyone else had this issue? Also if I grab the rear tire and rock it back and forth as hard as I can it will make a clunking noise in the rear end but not as loud as when I am driving down the highway. If anyone can help out I would appreciate it.
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post #2 of 4 (permalink) Old 10-08-2014, 07:23 PM
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Join Date: Mar 2010
Location: Stoney Creek, Ontario
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Start with looking at bushings, links, u-joints and hanger bearings. The F-550 just bent a front stabilzer bolt that came loose and made a similar noise. Are the spring shackles touching down on the frame? Just some suggestions to start with.

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post #3 of 4 (permalink) Old 11-25-2014, 06:21 AM
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Location: MAnitoba
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There was a tb on cab mounts a couple years back something about incorrect washer installation can cause the problem you are describing.

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post #4 of 4 (permalink) Old 11-28-2014, 04:52 PM Thread Starter
Join Date: Mar 2009
Location: Saskatchewan
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I had it at the dealer for an oil change got them to drive it they said they don't hear anything out of the ordinary. They told me about the cab mount service bulletin there just from what I explained to them so I might get them to look into that. I was out hunting with some buddies and it's embarrassing when we are out down the back roads and its clunking around like an old farm truck. Pretty sad when my buddies dodge a 1 ton rides smoother and quieter.
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