Tank has to come out , no other way around it IMO unless you wanna hack up the floor . Not too sure you wanna do that with a leak
Get the tank as empty as possible . Makes it easy to work with . I ran mine to below empty , left maybe an inch in the tank .
Start by soaking everything with PB Blaster and depressurizing the system . Remove the gas cap to vent the tank , release the pressure from the fuel rail .
Then let the gas fill and vent hoses go . This can be a little tough , they bond to the filler pretty good . Use a short flat top screwdriver , get your arm way up there and push the screwdriver tip downwards between the hose and filler . Do it it in a few spots , it should wiggle off no problem once the seal has broken .
Now disconnect the plug in , let the fuel supply line go , then the vent line
Not sure if you have the skid , I didn't . It will also have to come off . It's recommended the exhaust heat shield be removed , meh , I didn't but I did see where it would make more room . Hit the 2 bolts with WD-40 just before you take them off (after a presoak) . I hit mine with the impact . If you do this , clamp the upper side of the bolt with vice grips to stop it from rattling about
Obviously , you need something to hold the tank up . A floor jack works great . Once the straps are let go , start letting the tank down . The pass. side will drop while the other side is held up wuth the 2 hoses . Start feeding those through the frame as the tank is lowered . I did mine without lifting the jeep up to this point but raising the pass side at this point helped get the tank out the rest of the way . That exhaust heat shield ....may... have helped
. By now , the tank is on the floor .
Now your gonna see this , ewww
To remove this dirt , a small pointed screwdriver and a shop vac work great
Disconnect any remaining lines from the pump and vent . Now the get the lock nut off . I know I didn't have a "special tool" , and it's not coming off by hand at any point of removal
. My solution was use a large flat top , but blunt chisel . 2-3 medium taps per tab and work your way around . Don't use the top , use the side of the tabs . It will start to move slowly , then get better . Don't try to turn it all the way off one tab , it will just break .
Pull up on the pump and remove it , note it's position . Remove and simply replace the seal . That's an easy thing to do .