The electric buzzing sound of a 300TDI diesel pump should this be constant when the engine is running? I ask because sometimes it's not on my '95 disco. With ignition on and engine not running the sound is constant, with engine running sometimes the buzzing is intermittent.
I currently have an issue with the engine occasionally hesitating and in some cases completely bogging down, have removed both the diesel sedimenter and filter and cleaned them out. Was initially thinking the issue could be due to air getting into the fuel, but the injector leak pipes look ok and so does the drain back to the fuel pump. These are also clear pipes and I can see some bubbles coming out of the top of the injectors.
But my main concern is the electrics on the fuel pump, anyone know whether this is normal? If not I'm thinking it could be an expensive fix.
Shall upload videos of the buzzing without vs with engine running..
Thanks
I currently have an issue with the engine occasionally hesitating and in some cases completely bogging down, have removed both the diesel sedimenter and filter and cleaned them out. Was initially thinking the issue could be due to air getting into the fuel, but the injector leak pipes look ok and so does the drain back to the fuel pump. These are also clear pipes and I can see some bubbles coming out of the top of the injectors.
But my main concern is the electrics on the fuel pump, anyone know whether this is normal? If not I'm thinking it could be an expensive fix.
Shall upload videos of the buzzing without vs with engine running..
Thanks