Thump from rear when stopping

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Eram

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2012 Laramie 4X4
Engine
Hemi
Purchased a new 2012 1500 4x4 crew cab and I notice when i come to a stop after accelerating it seems like sometimes there is a delayed slight thump from the tranny. Is it gas sloshing around? It seems like it’s mechanical.
 

Pull Ya

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There have been numerous complaints from people about the "thumping" sound when stopping. Usually it applied to trucks with the 32 gal. gas tank.
Jay
 

BAILEY1

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Dat Cummins!
My Ram does the same thing from time to time. Its the fuel inside the tank. Dou you have the 32 gallon tank?
 
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Eram

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2012 Laramie 4X4
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Yes 32 gal tank. Noise just bugs me... Has Ram Acknowledged it or is it just something you get use to?
 

smiley

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Thumping is worth the gain in gallons :)
 

scHemi

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2009 RAM SLT Crew
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I have this problem seems like the transmission. I do not have the 32 gal fuel tank. Thoughts
 

Cynix

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Edmonton
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2013 Ram 1500 Sport
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mine does the same thing but only when its 3/4 full...it catches me off guard sometimes but i clue in lol. i also have the 32 gal tank
 

phillips66

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Illinois
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2013
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Same here, about 3/4 to 5/8 of a tank I get the thump.


Sent from my iPhone
 

Hemi395

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Cape Cod MA
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X3 on 3/4 tank. It was annoying at first but I did get used to it. It is kinda embarrassing though when people are in the truck and ask "what was that??"...
 
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