This is the TSB. If you have an 09 + the dealer can charge for the repair. There's an updated fuel fill tube that incorporates a check valve. Chrysler no longer recommends a tank replacement to the dealer as a fix.
SERVICE BULLETIN NUMBER: 14-001-13
GROUP: Fuel System
DATE: January 30, 2013
Fuel Spit Back During Refueling (X47 Lifetime Warranty Extension)
This bulletin involves replacing the fuel tube at the fuel tank. This new fuel tube has a check valve.
2007 - 2008 (JK) Wrangler
NOTE: This Extended Warranty Bulletin applies to vehicles equipped with a 3.8L engine (sales code EGT) built before March 1, 2007 (MDH 0301XX) and after March 31, 2008 (MDH 0331XX).
Some customers may experience a fuel spit back condition during a refueling event.
If the customer experiences the symptom/condition, proceed to the repair procedure.
NOTE: Vehicles included in this Service Bulletin have a lifetime coverage warranty for this repair.