I have a Dodge with the Cummins 24 valve engine. What preventative measures do I need to take to prolong the life of my fuel system?
The electric fuel supply pump tends to be a common item to fail on the 1998 1/2 through 2002 Dodges. These trucks are equipped with a Bosch VP44 fuel injection pump. The Bosch VP44 fuel pump needs to be fed by a positive fuel pressure from an electric fuel supply pump. The Bosch fuel pump will draw fuel from the tank in the absence of being fed, however this causes the pump to operate in a negative pressure. Operating with a negative pressure causes cavitations in the Bosch VP44 injection pump which results in a premature failure. We recommend checking the fuel supply pump pressure periodically and or installing a low fuel pressure warning light.
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