E350 V10 Misses when gas tank is filled

[Danford1 0]

I have a 1999 E350 with a V10 135,000 miles (a guess, I'd have to look for sure). I noticed after I fill the tank with gas the engine misses, chugs and runs rough at idle. While driving it seems fine.

This is a fairly new condition. I noticed it once in awhile but didn't think much of it. It is doing it more often now. Could it be Evap system? I'll have the codes read soon but also heard not everything sets a code off. What can I check?

It does this with a full tank and sometimes when starting van with 1/2 to 3/4 tank.

Thanks

Danford1

[akirby 14,790]

On newer vehicles that’s a classic symptom of a bad purge valve or Evap canister.

[Danford1 0]

Thanks. I know the purge valve is under engine cover near top rear of engine. Is there a simple test I can perform to see if that is the problem? Like unplug it or remove a vacuum line etc.

Thanks

Danford1

[akirby 14,790]

Not sure but I think MACT has a YouTube video on testing the Edge purge valve that might help.

[Danford1 0]

Thanks. I'll go watch some of his vids 🙂