Rough start after getting gas.

[Hero6]

I have a 2011 4.6 sedan. Runs and starts fine, except when I fill it with gas. EVERY time I put gas in it, it starts but runs rough for just like 2 or 3 seconds, then all is fine.
I do not overfill the tank, I just let the nozzle click off when full. I believe it also does it when just adding gas without a fill up, but cant remember for sure.

Anyone else had this issue?

No check engine light on, except for my airbag, which I haven't figured out yet.

 

[Gunkk]

Hard start and rough idle after fueling is a classic symptom of a failing/failed Purge Valve. Replacement is an easy 5 minute fix on a 4.6 with a 10mm socket, some pliers and a body trim pry tool or hose pick for the hoses.

 

[Hero6]

Hard start and rough idle after fueling is a classic symptom of a failing/failed Purge Valve. Replacement is an easy 5 minute fix on a 4.6 with a 10mm socket, some pliers and a body trim pry tool or hose pick for the hoses.

Thanks for the quick reply. I will take a look at replacing the purge valve.

 

[Howie]

I had the same thing on 2012 5.0. Did purge valve and new gas cap and problem solved. Never been back since.

 

[shahhere]

Hard start and rough idle after fueling is a classic symptom of a failing/failed Purge Valve. Replacement is an easy 5 minute fix on a 4.6 with a 10mm socket, some pliers and a body trim pry tool or hose pick for the hoses.

Any link to a thread as I did overfill this past week and the car did not start up 1st try almost as if the starter was about to fail. Gave it a 10 second rest and started it 2nd try which wobbled and did eventually start and had a few second hesitation but has been okay since.

Wondering if I did it because I overfilled (normally dont) and/or need to look at the purge valve issue ahead of it....

Shahhere

 

[jep604]

Haven’t had an issue with rough starts but did have an issue with a CEL on the dash after getting fuel. It lasted for about 60-70 miles and 3-5 engine stop starts and went out by itself.
I believe it might be related to my gas cap…when I bought the car new I would get gas and install the cap to “one click”.
Last year I noticed it doesn’t click anymore so I tighten and make sure it “springs back”. No issues since. Might be purchasing a new OEM cap and purge valve soon.