3.8 FUEL PUMP NEVER TURNS OFF
1995 Pontiac Bonneville • 6 cylinder 2WD Automatic • 134,000 miles
1995 Pontiac Bonneville 3.8_mileage: 134,000. The fuel pump never turns off, from the time you start the engine you hear the buzz until you turn off the engine. The fuel pump was replaced prior to my buying this used car. Is the sensor that senses the fuel rail pressure part of the pump assembly in the tank or some where in line? I have looked at the fuel line under the hood and to the fuel rail and only see the injectors, no other in line sensors.
The fuel pump should be running all the time that the engine in your car is started and running. You should not be hearing a buzz from the fuel pump. You may have a faulty fuel pump or a partially plugged fuel filter. There is no fuel pressure sensor in the fuel line, the fuel pressure is controlled by a regulator.
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