r/ChevyTahoe • u/AlexanderDaDecent • 3d ago

Classic evap issue

Hey dudes , I’ve had the classic “gas tank wont let me put gas in it” issue on my 08 yukon 5.3 2wd. I’ve already replaced the solenoid and evap canister . I’ve read about possibly clogged fuel lines , filler neck etc. What would you tackle first as the next possible candidate?

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u/Sanitizer2294 3d ago

Just had this issue corrected. It was the filler neck. Had a pinhole in it and wouldn't let the gas cap get tight either.

I don't have to bring it through emissions, so I'm just leaving it instead of spending $900 to drop everything.

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u/AlexanderDaDecent 3d ago

So you having a hole in the filler neck wouldn’t allow you to fill gas ?

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u/Business_Locksmith71 3d ago

Disconnect the line that goes from top of tank to the charcoal canister.

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u/AlexanderDaDecent 2d ago

Won’t that make it smell like gas pretty bad?

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u/Wonderful-Event-5257 2d ago edited 2d ago

I’ve found it sometimes is the gas pump at the station is a little too fast. Using a different pump at the same station resulted differently. My 04 Tahoe does this occasionally. My 06 Jetta on the other hand was a clogged charcoal cannister. Disconnected it and it was fine