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Old 01-06-2010, 08:22 PM
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Floor Board Noise/Chatter/Bump

Hi I am new to the forum and am hoping someone can help me figure this out.

I have a 2007 Jeep Grand Cherokee with the 4.7L V8 ~ 34,500 miles bought new.

Pretty much since new at random times, I have had a tap/bump on the drivers side floor board at 70-73 mph. I feel it with my left foot close to the hood latch. The tap/bump feels like chatter or consistent tapping. The tapping occurs randomly but goes away if I go down a hill or take the jeep off cruise and decelerate.

We hit Chicago for new years, drove 700 miles and averaged 18mpg @70-75mph. The floorboard noise was present at various times.

There is nothing present in the steering wheel (movement, clocking, etc) when I feel this on the floorboard. I have been under looking for cables, hoses, etc and can't find anything. No leaks in the tcase, front axle, so I am lost. I have rotated the tires and it does not change anything

. I have not taken it to a dealership yet because I know they will say no fault found unless I have something to go on.

Any insight is appreciated.


2007 Jeep Grand Cherokee Laredo
Stock with 4.7L V8
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Old 01-06-2010, 09:38 PM
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Re: Floor Board Noise/Chatter/Bump

the front diff has 3 rubber mounts that could be jacked. they say if its on a lift, you put it in gear and you can see the whole thing right away. i guess if you could get the front end up in the air.

three isolators for the front diff. i would check that.
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