The fuel tanks in these vehicles, made of metal or plastic, are positioned midship or aft-axle. Optional auxiliary tanks may be present. Plastic tanks, if damaged, should be replaced. For midship tanks on fuel-injected models, fuel system pressure must be relieved before disconnecting the battery and draining fuel. The tank is lowered after removing hoses, filler pipes, and electrical connectors, with the fuel level sending unit/
Fuel Pump and vapor control valve removed if replacing the tank. The process for aft-axle tanks involves draining fuel, disconnecting hoses and electrical connectors, and lowering the tank while supporting it, with additional steps for metal or plastic tanks. Bronco models follow a similar procedure with specific steps for their configuration, including the removal and installation of the vapor emissions control valve for tank replacement. Precautions, such as resetting the inertia switch on fuel-injected models, should be observed during installation.