yes you will need to drop the tank mate as there intank pumps

simple enough to do as long as the bolts come out

think its 2-3 13mm bolts and the tank strap, undo the breathers off the tank and pull the tank down

you will have 2 pipes one red one ehite i think

use 2 very small flat blade scredrivers into the pipe connector and push the pipe should skide off as you push

then take the tank from under car replace pump and refit