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Dodge dart running issues after filling up fuel #5326704 01/19/20 12:58 AM
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ram_man Offline OP
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I have noticed our 2.4l dart will act up after getting a full tank of gas. I have a habit of leaving the car on when fueling especially in the winter time. After fueling it'll be ok and then you'll stop like to pull out from the station and it'll just die. Fired right back up it'll do this a couple times. Then usually be it start chugging and cutting out for a few seconds and then clear up and be perfect then on
Only seems to do it when the car is fueled while running. I've owned it 3 yrs and never was this a problem until recently. No codes or anything of the sort. Different gas stations have been used with the same results. Very strange situation. Any thoughts? My guess is some valve on the tank or the module?


2014 dodge dart GT
1995 Dodge ram 1500


Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326722 01/19/20 02:19 AM
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Char Baby Offline
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I have a habit if overfilling my cars after the clicker shuts off. Could this be you situation?
I know it's not good to overfill as it caused fuel to saturate the vapor unit/purge valve etc...IDK if I said that correctly?!?!


Retired 6 yrs now & lovin' it
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'80 Firebird FORMULA V8/4bbl-purchased "NEW"
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Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326731 01/19/20 02:56 AM
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Skippy722 Online Happy
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Could be sucking fuel into the charcoal canister, and when the PCM sends the purge command it’s flooding the engine. My parents 2004 Grand Caravan had a stuck valve or something, every time you’d fill the tank completely full it would do exactly what you described. But if we stopped it before it’s full, it wouldn’t do it.... I’d try that next time and see if still does it.


2016 Chrysler 300S v6
2018 Dodge Grand Caravan GT

Slight Mopar obsession
Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326746 01/19/20 04:17 AM
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Why do you leave it running while refueling?


2017 Mazda CX5
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Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326754 01/19/20 05:09 AM
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Olas Offline
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Remove the charcoal canister and all associated systems. all tanks need a fill and a feed, some need a return. None need a purge canister, especially not one that causes problems.
Remove it and cap off any lines and map the function out and the problem is solved.

Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326758 01/19/20 05:13 AM
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Triple_Se7en Online Content
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Troubleshoot)....At the same location and same pump number, fuel with a half-tank remaining, to see if the same symptoms occur - as with a low, 1/8th of the tank remaining.
Then come back here with your findings.


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Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326777 01/19/20 06:20 AM
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PimTac Offline
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The same question was asked only a couple of months ago.


https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/5279793/1


2017 Mazda CX5
Valvoline Advanced Synthetic 0w20
Roki OEM filter.
Re: Dodge dart running issues after filling up fuel [Re: PimTac] #5326796 01/19/20 07:14 AM
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mk378 Offline
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Originally Posted by PimTac
Why do you leave it running while refueling?


+1

No one should do that; it's dangerous and cars are not designed for it.

Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326808 01/19/20 07:37 AM
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Kira Offline
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To Olas: I believe your suggestion is risky.
A purge command may be sent by the MASTER BRAIN and some pressure detection circuit may not detect what it expects.
e.g. Engine vacuum may be valved to suck purge the canister. A pressure sensor you instructed the OP to remove "and cap" can't send any signal.
Said sensor couldn't even pass a test signal (if there is one) because it's not there, again, at your suggestion.

I think a GREAT first step would be for the OP to stop monkeying around like a jack wagon and shut his car off during fueling and see what happens.

Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326812 01/19/20 07:43 AM
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eljefino Offline
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Your purge valve is open and you're running raw gas through it. Stop it. Turn the car off like you're supposed to.

Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326814 01/19/20 07:48 AM
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VQ35DE Offline
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Shut your Dart OFF first.


2017 Mazda CX-5 GS AWD
Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326835 01/19/20 08:24 AM
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ARCOgraphite Offline
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Originally Posted by ram_man
I have noticed our 2.4l dart will act up after getting a full tank of gas. ...


1) Never leave the car running when refueling, if its in a evap check phase it will see excess air pressure and start pulling a vacuum on the tank. You may be sucking in fuel ir just a lot of air.

2) You have a couple qts of water and alcohol phase separated on the bottom of the tank, and you are stirring it up; it settles out in about a couple minutes

3) You filled to past initial shutoff and flooded the evap purge canister.


I never top off or even try to fill the tank.

If I know I'm not going to be driving hard or WOT, Ill run near empty if i suspectt phase separated fuel, dump some drygas on there and run it near dry. You can add a little top oil in there, but Im not sure if you can cause sludge.

Oil and water are not good partners,


2019 VW Jetta S 6MT OCI#2 7378mi-MOTUL Specific VW508.00+VW Service Filter; '17 Subaru Crosstrek CVT OC#8 60864mi-Subaru Idemitsu 0W20 + SOA Filter
Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326867 01/19/20 08:50 AM
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Its a simple thing to rule out. Shut it off and fill next time and if it doesnt happen, dont fill the car with it running.


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2015 Toyota Venza Parisian Blue Pearl 25k miles
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Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326883 01/19/20 09:14 AM
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Evap test state is typically between 1/4 tank and 3/4 tank under certain conditions. If you are never in the right test conditions your MIL may never come on.

As others have said, shut the car of as designed, and for safety and check to see if it continues.


03 Honda Interceptor
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Re: Dodge dart running issues after filling up fuel [Re: ram_man] #5326900 01/19/20 09:31 AM
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AZjeff Offline
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Hopefully he doesn't get back in the car while it's running and fuelling creating a static charge when he gets out...

Seriously OP, is it that cold there that you lose cabin heat while filling up if you turn it off?



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