2014 Jeep Cherokee Limited acts up every time I get gas.

[roser601]

Make

Jeep

Model

Cherokee Limited

Year

2014

Miles

70238

Engine

V6 Pentastar

My 2014 Jeep Cherokee Limited spits, sputters and sometimes dies at idle every time I take the gas cap off and fuel up.
After replacing the gas cap and starting the V-6 engine the trouble starts. The engine will run rough, sputter and sometimes will shut off when you stop for a stop sign or traffic light.
Sometimes when you pull to a stop the warning message will apoear that you have to place the gearshift in park and restart the engine-a real problem when in traffic.
After a few miles of driving it will smooth out and the problem will disappear until the next time you take the gas cap off to fuel up.
Has anyone else ever had this problem?
What is the solution?

 

[grcauto]

You kill the engine before fueling up? What is the code?

 

[roser601]

Engine is running as I fuel up.
No MIL light comes on, just starts cutting up after I put the gas cap back on after finishing fueling as the engine is running.
Trouble starts as I pull away and get back on road.

 

[grcauto]

Engine is running as I fuel up.
No MIL light comes on, just starts cutting up after I put the gas cap back on after finishing fueling as the engine is running.
Trouble starts as I pull away and get back on road.

With the engine running you are doing two things wrong. One is you are violating the law. Second is you are causing your problem by not turning the engine off before ever removing the cap.

 

[nickb2]

Grc is right, in my country, this is a violation of law.

Fuelling when engine running is not legal and is dangerous, Major fire hazard.

My take is if you fuel up engine running, vent and purge solenoids are active, fuel vapours have nowhere to go, so they will go into intake via purge valve which is supposed to be closed when fuelling.


Vent valve will normally be open in a engine off situation. Engine running, it should close, and the purge valve take over. Now I know this is not a very specific way of saying things, but essentially, never tank a modern car or truck engine running, I am amazed you dont have codes.

anyway, next time, tank with engine OFF. see how it goes.

hope this helps

 

[roser601]

Thanks for the input.
Was not aware of law violation-will take that into account going forward.
Will re-post when I fill up the next time the correct way and see what happens.

 

[thewrightman]

I'm opposed to laws that are for "my safety" - if I decide to take the risk of driving a car then certainly I can decide whether or not I can take the risk of not wearing a seatbelt or leaving the car running with the ac on while pumping gas. But that's a different conversation...

Are you switching octanes? That system does not like it when you leave the car running while pumping gas and changing octanes exacerbates the issue.