What does bucking mean in a car?
What does bucking mean in a car? In most cases when you apply pressure to the accelerator pedal, the engine slowly revs up and when in gear accelerates forward. When this occurs, it sometimes creates a hesitation in the application of the throttle or a "bucking" sensation. What causes a fuel pump to go bad? 4. Damaged Fuel Pump. If you notice damage to your fuel pump, it may be caused by a restricted fuel filter. The clogged fuel filter puts too much pressure on the fuel pump and prevents the proper amount of fuel in the fuel tank from...