Burp after fill-up

[TomcatDriver]

Only had the car for a few weeks. On my first fill-up I noted a slight "burp" about 2-3 seconds after starting. Car then ran fine, no issues. Second fill-up and exactly the same thing happened. Car fired up and about 2-3 seconds after stabilizing at idle there was a slight "burp", which was a momentary RPM drop/rough sound (less than a second), followed by a return to normal idle. It's never done this from a normal start, only the two times after fill-up and checking the oil.

I found the improperly seated dipstick thread, and both times I filled up I did check the oil (which was at the top of the hash both times). Next time I am not going to check the oil and see if it makes a difference. Anyone else experience this?

Oh, I live in CA where 91 is about as good as you are going to get at a normal gas station.

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[Socalrugger]

My car has a tendency to burp and fart after i fill up..... at least i think it’s the car....

Only had the car for a few weeks. On my first fill-up I noted a slight "burp" about 2-3 seconds after starting. Car then ran fine, no issues. Second fill-up and exactly the same thing happened. Car fired up and about 2-3 seconds after stabilizing at idle there was a slight "burp", which was a momentary RPM drop/rough sound (less than a second), followed by a return to normal idle. It's never done this from a normal start, only the two times after fill-up and checking the oil.

I found the improperly seated dipstick thread, and both times I filled up I did check the oil (which was at the top of the hash both times). Next time I am not going to check the oil and see if it makes a difference. Anyone else experience this?

Oh, I live in CA where 91 is about as good as you are going to get at a normal gas station.

 

[Offboost]

Excess fuel vapors in purge system being ingested from fresh fuel vapors saturating charcoal canister, also The PCM does a slight relearn after fill up to verify fuel and octane qaulity when fuel is added.

 

[nastang87xx]

Had it happen many times including not after a fill up. Zero concerns. No CEL, no worry.

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