The fuel tank inside Ford Bronco vehicles comes either in metal or plastic form with the larger tank usually placed midship or near the rear axle, while many cars carry a smaller auxiliary tank alongside the main one. A broken plastic tank won't fix, so it needs replacing. First, you lower fuel system pressure and disconnect the negative battery on midship tanks. First, we disconnect batteries and drain fuel, unscrew the hoses, lower the tank, detach all fuel lines, and remove connecting wires before taking the tank out from underneath the car. When reinstalling the tank, first separate the fuel level sending unit and vapor control valve. Put them back the same way you removed them, while remembering to reset the chassis' inertia switch during installation. Like in front-axle tanks, fuel is drained and hoses disconnected, after which both the tank and the vehicle are carefully lowered to remove the tank. Plastic tank removal needs you to carefully take off the skid plate and tank support before touching the vapor emissions control valve. Putting in the fuel tank goes the same way as taking it out: fuel lines have to stay straight and smooth during the process. For all Bronco models, we empty fuel, disconnect lines, lift up the tank, and put in a new vapor control valve if needed, then put everything back in reverse order while turning on the tank's inertia switch.