2005 gmc Yukon
On the message center it keeps telling
me to tighten fuel cap and then when I
go to get gas it keeps kicking the gas
pump off. It took me 20 minutes to out
in 13 gallons and was no where near
enough fuel. I was trying to fill it up??
Do you have any idea what is wrong?
Evap is stuck closed, charcoal canister filled with fuel or vent hose clogged. Evap vent is Stuck closed
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