Tank Assembly problems of the 2004 Kia Motor Sorento

I am writing this complaint against Kia Motors who willingly knows of issues with its fuel systems in all 2004 kia Sorentos. Even looking online you see thousands of kia owners who have had the sensor go out on this model car after the cars 100000 warranty, and then kia claims it is past the warranty they have and there is nothing they can do. This causes the gas to always read incorrectly even with a full tank the car reads "e" and continuously every day have to place more gas in car for fear that the "e" may come on and like several days ago I was left on the side of the road from this. When you reach out to kia they offer no help stating there are no documented cases and when you tell them to look online, they claim those could just be angry customers placing false information. Then they want to hang behind the "as is" clause stating that I should have had a mechanic check the car out, which unless they are a kia dealer and are aware of this issue which did not show up to several days later after the car was purchased. This is known defect in manufacturing as evidenced online and feel that something should be done to make kia fix these problems without customers having to fork over more and more money over something kia itself is responsible for and will not rectify.