aren't all the panel tanks the same regardless of model? or do you think there's a pickup truck tank in your panel? how did you do the sealer without taking the sender and tube out?? what makes you think my assumption of how to remedy what you're assuming is the problem has any relation to reality?? assumptions aren't usually a good way to trouble shoot

tanks are supposed to "suck air" - if you mean the pump isn't pumping, have you checked the line tank-to-pump well? any cracked rubber hose involved there? how do you know it's "sucking air" and not sucking a vacuum because somethings plugged? such as the outlet plugged with tank sealer
Bill