car stalls after fill up gas tank

[toothdoc]

my 05 300c 25k miles, has been stalling after I fill up gas tank. when I get to first stop light after fill up it wont idle, i have to grind on starter. It has left me stranded in intersection. it does not happen every time and by the time i get to dealer its fine?? dosent matter which brand. this has been happening for 3 months now. any body else? any tsb"s . only thing i can think of is something floating to top of fuel tanks and cloging pick up??

[Northern Rider]

Originally Posted by toothdoc

my 05 300c 25k miles, has been stalling after I fill up gas tank. when I get to first stop light after fill up it wont idle, i have to grind on starter. It has left me stranded in intersection. it does not happen every time and by the time i get to dealer its fine?? dosent matter which brand. this has been happening for 3 months now. any body else? any tsb"s . only thing i can think of is something floating to top of fuel tanks and cloging pick up??

Make certain the gas cap is fully secured. Otherwise the engine will cut out.

[NautcaSprt6]

well that didnt happen to me when filing up, but it happened to me when i cam to a stop and my car just stalled.
There are posts about it all over here.
When i went to the dealer and told them my car stalled, he said he changed a pin and it hasnt happen yet, its been about 2 weeks so far.

[toothdoc]

what kind of pin?

thanks

[Meister]

Originally Posted by Northern Rider

Make certain the gas cap is fully secured. Otherwise the engine will cut out.

Concur.

Dealer recommendation from 2 different dealers is go 5 to 7 clicks past where it feels snug--it's critical that the cap be very tightly secured.

[charlie D]

I have to concur with NR. Even if there is no apparent indication, replace the gas cap.It may possibly be flawed and with time simply doesn't seat properly.

[Meister]

Toothdoc, one of our sister forums is blessed to have a very knowledgeable, helpful, Dodge tech in residence. I took the liberty of running your problem past FNKYCHKN and here's his response:

"...i would suspect a leaky duty cycle purge solenoid. as fuel is pumped into the tank, the vapors from the tank are pushed into the canister, to be burned as part of fuel mixture during a normal drive cycle. the PCM cycles the purge solenoid valve to allow vapors from the canister to be introduced into intake manifold. if this valve is leaking, the amount of vapors cannot be properly regulated and may result in an overly rich condition which could cause idle undershoot and stalling.
another thing that could affect mixture is the canister being saturated (usually caused by overfilling tank).
TSB 18-031-04A deals with rough idle after hot restart.
good luck."

This doesn't mean that you don't have to keep your fuel cap super tight, BTW.

[NautcaSprt6]

Originally Posted by toothdoc

what kind of pin?

thanks

I dno,
The guy told me that they installed a pin, but i dont know what or where it goes.

[mspeasl]

Originally Posted by Meister

Toothdoc, another thing that could affect mixture is the canister being saturated (usually caused by overfilling tank). TSB 18-031-04A deals with rough idle after hot restart. good luck."

Gang,

Most new car tech's will tell you to STOP filling your tank when the automatic hose shuts off on its own. Your (our) continuing to fill after that does just what is stated above. That's bad. One thing that they have also told me is to fill on SLOW instead of fast and air will leave the tank and not leave air pockets causing the pump to shut off early.

[Meister]

Originally Posted by mspeasl

Gang,

Most new car tech's will tell you to STOP filling your tank when the automatic hose shuts off on its own. Your (our) continuing to fill after that does just what is stated above. That's bad. One thing that they have also told me is to fill on SLOW instead of fast and air will leave the tank and not leave air pockets causing the pump to shut off early.

Excellent, practical, everyday usage, application of Funky's comments, mpeasl, thanks.