answered by Carguy1 (12.6k points) Hi there, This code can take quite a while to go away on it's own. Vehicle: 2011 Chrysler 200 4 cyl check-engine-light p0456 1 Answer. The replacement of any hoses and valves is often inexpensive. On average, a minor leak issue associated with Code P0456 will set you back between $200 and $300, with the majority of those funds going towards labor and diagnostics. Refer to Fuel Tank Installation.The majority of the costs for the Code P0456 repairs stem from diagnostics. (8) Connect fuel return and pressure lines to fuel pump module fittings (Fig. (6) Install Special Tool 6856 to locknut. This step must be done to prevent float/float rod assembly from contacting sides of fuel tank. Align arrow to tick mark on top of fuel tank. (5) Rotate module until indexing arrow at top of module (Fig. (4) Position locknut over top of fuel pump module. (3) Apply clean water to locknut threads. (2) Using new gasket, position fuel pump module into opening in fuel tank. Do not use carburetor cleaner to clean threads. (1) Thoroughly clean locknut threads and mating fuel tank threads. The fuel pump module will spring up slightly after locknut is removed.ĬAUTION: Whenever fuel pump module is serviced, module gasket must be replaced. Install Special Tool 6856 to fuel pump module locknut and remove locknut (Fig. (5) The plastic fuel pump module locknut is threaded onto fuel tank (Fig. Refer to Quick-Connect Fittings for procedures. (4) Disconnect fuel return and pressure lines from fuel pump module fittings (Fig. (3) Thoroughly wash and clean area around pump module to prevent contaminants from entering tank. (1) Perform Fuel System Pressure Release Procedure. BEFORE SERVICING FUEL PUMP MODULE, FUEL SYSTEM PRESSURE MUST BE RELEASED. WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). Refer to Fuel Pump, Fuel Filter/Fuel Pressure Regulator and Fuel Gauge Sending Unit.įuel tank removal will be necessary for fuel pump module removal. If the electrical fuel pump requires service, the entire fuel pump module must be replaced. The fuel gauge sending unit and pick-up filter may be serviced separately. Fuel gauge sending unit (fuel level sensor).A gasket between tank flange and module.A threaded locknut to retain module to tank.A separate fuel pick-up filter (strainer).

2001 jeep grand cherokee drop gas tank