[joey]

I assume you have carefully read through your extended warranty, but
I have the Chrysler Maximum Care extended warranty and the tank is covered.
Here is the verbiage from the extended warranty.

ENGINE COOLING & FUEL: Cooling Fan, Clutch and
Motor; Radiator; Coolant Temperature Switch; Fuel Pump;
Water Pump and Housing; Fuel Tank Sending Unit; Fuel
Tank and Lines; Serpentine Belt Tensioner; Seals and
Gaskets.