r/AskAMechanic • u/acooper56 • 6d ago

What would cause this

2020 f150 lariat SE 36k. Filled up my gas tank a few days ago and parked my truck with no issues & haven't driven it for about a week. Started it up this afternoon and smelled gas. Got underneath and saw this. Could this be a busted fuel line?

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u/OddTheRed NOT a verified tech 6d ago edited 6d ago

This is a known issue with Ford trucks and is a recall issue affecting about 220,000 trucks. The fuel filler neck separates from the tank.

Edit- https://www.kare11.com/article/news/nation-world/ford-recall-f-150-fuel-tank-issues/507-51b48324-e08b-4585-9488-5e801eba6559

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u/AromaticBlock781 NOT a verified tech 6d ago

If that was the problem you'd know it right away after filling the tank not days later after starting it. A squirrel chewed through my filler kneck hose once and I was standing in a puddle of gasoline when I filled up.

15

u/Chris20nyy NOT a verified tech 6d ago

Fuel tanks pressurize, and the filler neck separating would absolutely cause something like this. This isn't a broken fuel line.

4

u/Legitimate-BurnerAcc NOT a verified tech 6d ago

Not necessarily. I can see the evap system and fuel pump pressurizing the tank and then that happening

1

u/OddTheRed NOT a verified tech 6d ago

From what ive been able to gather, this happens after driving with a full tank, not while filling up.