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Old 03-12-2018, 11:41 AM   #1
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Fuel Fill Issues

My 2004 Ram 2500 has been having filling issues at the gas pump for the last few months. I can put fuel in no faster than ~1 gallon a minute, anything faster and the pump clicks off. Yesterday I could get no more than a half tank before the pump would click off. No gas has ever come out of the filler neck, it just won't fill. I've had the check engine light on now for quit some time with a fuel vapor/emission related fault. To date, I've replaced the solenoid under the truck by the charcoal canister, and the fuel purge (?) solenoid up front in the engine compartment, check engine light is still there. Doesn't matter how I manipulate the pump, it won't take fuel. I did insert a flexible tube down the filler neck and it feels like it's hitting something where the neck and tank meet. Not sure if this is a baffle, or something inside the tank that's not supposed to be there. I hate throwing money at this trying to fix a problem I can't find. Any ideas/suggestions?

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Old 03-12-2018, 12:49 PM   #2
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There is a vent tube that comes off the filler neck, that might have gotten clogged somehow and could cause the filling issues you are having. I'd try removing the filler neck assembly front the truck and making sure that vent line is completely free of obstructions and inspect the main fill tube as well. That will only cost some time and effort.
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Old 03-12-2018, 01:29 PM   #3
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Just so I have an idea of what to expect, is the fuel tube bolted into the main tank, or will it pull out? Am I going to have to drop the tank?
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Old 03-12-2018, 01:45 PM   #4
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The fill tube, metal portion, is connected to hoses that are attached to the tank. I am pretty sure you don't have to drop the tank to remove it but I don't know for sure.
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Old 03-12-2018, 02:01 PM   #5
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I'll get under there and check. Thanks for the input!
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Old 03-12-2018, 03:25 PM   #6
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It is part of your evap system. There is a filter located in your evap system that you need to replace. It should fix your issue. Look for it right in front of the fuel tank. The part number you need is 04891561AA.
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Old 03-12-2018, 08:25 PM   #7
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The trucks are known for the rollover vent sticking up causing vent or tank air flow to stop causing the fuel to fill slowly. Try unhooking the vent going to the filler first of that doesn’t work try unhooking the 3/4” line to the canister if it still won’t fill fast then the rollover for sure is stuck up and most times a tank is required to fix it.
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Old 03-13-2018, 06:50 AM   #8
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Thanks guys! I'll try removing the vent lines first, since that's free. I tend to think the rollover valve is shut, since in my post I mentioned that something seems to be causing an obstruction at the point where the filler tube meets the tank. I need to put gas in the truck tonight, so I'll unplug the 3/4" line and vent line to see if that makes any difference.
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Old 03-13-2018, 07:52 AM   #9
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Not the best solution, but hey maybe you'll get a laugh out of it. lolol
My solution for fuel refill problems. - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
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Old 03-13-2018, 10:55 AM   #10
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Quote:
Originally Posted by charged392 View Post
The trucks are known for the rollover vent sticking up causing vent or tank air flow to stop causing the fuel to fill slowly. Try unhooking the vent going to the filler first of that doesn’t work try unhooking the 3/4” line to the canister if it still won’t fill fast then the rollover for sure is stuck up and most times a tank is required to fix it.
Good excuse to either go with the larger factory tank option or to go with a custom tank between the frame rails at the back like you and Greg have.
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