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  #1  
Old 01-31-2012, 07:07 PM
vanderbilt31 vanderbilt31 is offline
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Default Ram 1500 clunking noise 32 gal tank

Hello everyone. I know this is a 2011 forum but I'm curious about the ram 1500's 2010 and up. I know people have posted about the sloshing of the fuel when coming to a stop, it almost feels like a slight bump from behind. My question here is has anyone felt a slight thump or clunk during accelerations? My truck from day one has clunked on I'd say 2 out of every five starts from stop when I have over a 1/2 tank of gas. It feels like a clunk in the drive train resembling a bad u joint. Once I get below a half tank the clunk goes away. I have the 32 gal tank. Brought it to dealer with 3/4 of a tank and they heard the thump but couldn't find the issue.
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Old 01-31-2012, 08:08 PM
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There have been a few people that have had issues with bad u-joints. I would take it back to them again with less gas and see if it can still be heard.
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Old 01-31-2012, 09:22 PM
vanderbilt31 vanderbilt31 is offline
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Can't get truck to make the noise with less then half a tank. Just filled it to 3/4 tank and bam! The noise is back. Dealer hasn't been much help. Only have 450 miles on the truck and have been complaining since day 2 of taking it home. During test drive I didn't notice it I assume because the truck was on E at the time.
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Old 01-31-2012, 09:23 PM
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deadly milkman deadly milkman is offline
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Only time I hear my clunks is from 1/2 to 3/4 or so a tank from stopping w/ my 32g fuel tank.. sorta sucks but I've gotten used to easing off at the last second before complete stop and don't have any clunking if I keep doing it that way.

Never heard anyone talk about clunking from acceleration though.

edit: If you're only hearing the clunks from when your fuel is filled to a certain level I'd say it's the fuel tank.. but again I don't know shit about mechanical issues and again I've never heard anyone say they have clunks on acceleration

Last edited by deadly milkman; 01-31-2012 at 09:25 PM.
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Old 02-01-2012, 12:47 AM
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Same problem. The issue is simply improper baffles in the larger fuel tank. The fuel is just sloshing back and forth. You can get it to happen even by a sudden stop at a coast
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Old 02-01-2012, 07:26 AM
vanderbilt31 vanderbilt31 is offline
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Rye did you ever speak to dealership over this? Guess something I'll have to live with til lease is up. Had plans to purchase....not anymore. Thanks guys.
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Old 02-01-2012, 11:51 AM
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I have this issue too accelerating (hard) and stopping (hard). Didnt notice it until the dealer replaced the rear differential plate (recall). Have since figured out it is the 32 gallon fuel tank. Might try lightening your foot or only filling up a half tank. I've noticed the fuel mileage is better at or under a half tank too.
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Old 03-07-2012, 12:08 AM
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your decision is changed because of a subtle bump you feel for less then half a second in a narrow range of fuel?
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Old 03-07-2012, 12:21 AM
wbowyer wbowyer is offline
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Does this happen with a FULL tank? If it happens with a topped off tank then check the bands holding the tank up to make sure it isn't shifting for some reason. If not then its the fuel sloshing around.
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Old 03-14-2012, 01:16 PM
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I always wondered what that was
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