Question about 2011 Hyundai Elantra Touring

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Have you ever heard of fuel in the gas tank making thumping noise when it splashes up and back?

I am having the same problem with the thumping noise in my 2013 Elantra. Sounds like something is rolling around in trunk. Dealership service dept. said it is the fuel in the tank going back and forth. Have you ever heard of such a thing?

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I have not, but I would guess it depends on what type of sender unit they use to let you know the level of gas in the tank. I would think the noise is more pronounced when the tank is closer to empty than full. Usually, the sender unit is part of the fuel pump, so you're looking at a few hundred bucks to get a new one. Turn up the radio :-)

Posted on Dec 05, 2014

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Plastic tanks on most cars these days, benefit, they don't rust and burst/ leak, downside, a lot more noise from fuel than the old steel tanks.

Posted on Dec 05, 2014

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