Hard starting, a no-start condition, stalling, weak acceleration, low fuel pressure, or an inaccurate fuel gauge can indicate an in-tank module fault after power, ground, relay, and fuel-pressure tests are completed. The BDFHYK E3954M fuel pump module is an OE-style replacement for specified 1997–2002 Chevrolet Blazer and GMC Jimmy 2-door models with the 4.3L V6. Confirm the two-door body style, pressure-sensor arrangement, connector, module depth, and OE number before installation.
Fitment must be confirmed from the VIN, fuel-tank configuration, removed module, and OE/interchange number. Similar vehicles can use different flanges, connectors, fuel-line arrangements, module depths, or sender layouts.
Supplies fuel from the tank and measures fuel level through the module sender. This is an OE-style aftermarket replacement intended to restore the original tank-side function when the application and physical module match.
A failed fuel pump module should be confirmed with pressure, voltage, ground, and circuit testing. Do not replace the module solely because the engine does not start or the fuel gauge is inaccurate.
Relieve pressure, disconnect the battery, transfer the original pressure sensor when required, replace the seal, prime, and verify leaks, pressure, gauge, and evaporative-system operation. Do not energize an electric fuel pump outside fuel. Follow the vehicle service procedure for tank removal, sealing, and pressure testing.
Verified E3954M coverage is for 2-door Blazer and Jimmy applications; 4-door models can require a different module. Compare all pictured components and listed references with the removed assembly before ordering or installation.
Electric Fuel Pump Module Assembly For Chevrolet Blazer For GMC Jimmy V6 4.3L 1997-2002 Engine 4.3L/V6
