No, there is zero sediment.Do you notice a lot of sediment in your filter housing?
I was very surprised to see sand and metal in the prefilter in my Cummins when I did it today. The prefilter in my MB cars gets dirty, but never the metal and sandy grit I saw in this one. No idea how many miles were on it. It was pretty grimy on the outside...No, there is zero sediment.
That's not good. The metal could be getting into the fuel tank from the bleed return from the main pump. Maybe someone here will know more about the fuel system on your year of Cummins.The prefilter in my MB cars gets dirty, but never the metal and sandy grit I saw in this one.
Apparently some metal shavings are common on these. Belief is it’s the mechanical lift pump.That's not good. The metal could be getting into the fuel tank from the bleed return from the main pump. Maybe someone here will know more about the fuel system on your year of Cummins.
That's certainly a lot better than the main pump.Belief is it’s the mechanical lift pump.
Agreed. I’ve also heard it is due to the vibration of the fuel level sender...That's certainly a lot better than the main pump.
2017 and newer 6.6L Duramax (L5P and L5D) switched to electric lift pump in the fuel tank, upstream of the fuel filter, very similar to the gasoline-powered trucks. And yes, it is quite possible the whole delivery module unit is vibrating on the bottom of the tank.Agreed. I’ve also heard it is due to the vibration of the fuel level sender...