emission canister\\\\ gas problem

Hi guys first off im new to this so i hope im doin this shit right.i purchased a 2007 ford crown vic police interceptor.ecer since i bought it .it wont let me fill uo the gas tank .i go to pay and then when i start to pump it pump maybe 50 cents then cuts off .wtf. someone please helo i had people tell me its the whole emissions canister.my canister is hanging a lil as wel . I guess they tried to fix it the wring way by tying it to the tank .and the canister is 350.00 i cant find cheaper

Are you able to pump more in by changing the angle of the nozzle?
There is a tube right there by the fill hose that can get clogged by debris(I have heard of spider nests being found in there) and cause this.
You can remove the canister on the bottom of the trunk and clean the inside of it which could help as well.
http://www.crownvic.net/ubbthreads/ubbthreads.php?ubb=showflat&Number=2280321