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1999 Dodge Dakota R/T, 133k miles. When I stop, there is a secondary small bump that I am fairly sure is the fuel sloshing around in the tank. It isn't noticeable if the tank is full but once it gets down to around 3/4 tank it is noticeable. I can repeat at will, especially letting it creep forward and hitting the brake again. Once the tank gets lower the effect lessens. This is my fourth 1999-2000 Dakota and I've never had the issue on the other trucks, they all had the large capacity tank.

I guess it's just the design of the tank and the placement (if any) of the baffles inside but I am curious why this truck does this when the others did not. Should I buy a spare gas tank and replace it when the fuel pump eventually goes bad?
 

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I have noticed this in my 95 Dakota. I think it's kind of cool, lets me know when I have fuel in the tank, haha. It doesn't leak so I don't think it harms anything, a new tank isn't going to do any good, it would be the same tank. There just isn't that much sheetmetal and insulation to hide the noise, that's all.
 

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Maybe no baffles. My Daytonas do not have tank baffles.
 

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Discussion Starter #4
It's odd that out of a 1987, 1988, (2) 1989s, 1993, 1994, (3) 1999s and a 2000 that this is the only one with the noise. I guess this is one of those "live with it" things.
 

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Right, no baffles. I was kind of caught offguard first time I heard it, now it doesn't bother me.
 

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If its a plastic tank, like my 06, which is along the frame and much longer than it is wide, the shape will promote the fuel to slosh due to the deceleration of stopping. Some makers have tried to glue baffels inside of plastic tanks, and the glue fails due to immersion in gasoline, and then the baffles go back and forth and tear up the fuel pump. Not good.
 
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