Fuel tanks are dangerous ,you might try a DIY BUT first empty the tank and not in your garage, I would highly recommend you take this somewhere.Most shops have an outside lift for just these types of jobs. When it comes to some vehicles they make it accessable from inside the car from a service plate ,others you have to drop the tank $$$$$.If your using all the fuel while driving your car this practice will quicken the age of these pumps ,its good to keep a 1/4 tank always to cool the pump while operating.Most mechanics will sit by the tank and listen for the pump noise while another one starts the car ,it is a detactable noise.