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The most common mechanical issue with the 98.5-2002 Dodge Cummins was failing of the Bosch Vp44 injection pump and lift pump. For many years these have been infamous for going out as well as costing customers a great deal of money, especially if you take your vehicle back to the dealership, repair service cost typically ordinary concerning $3000. There are 3 usual mechanical failures of the VP44 shot pump:

One of the most common mechanical failure of the VP44 pump is fracturing of the diaphragm in the front of the injection pump. The diaphragm tears permitting the timing piston to vibrate and also damage the front cover till fuel bypasses. This will certainly cause the dreadful check engine problem code P0216. When this occurs your Bosch VP44 Injection Pump need to be changed. The fracturing of the  diaphragm is caused by a how many fuel filters does a 6.7 cummins have poorly made lift pump. When the lift pump does not provide the Injection pump with the appropriate amount of Fuel Stress (a minimum of 5psi under lots at broad open throttle) the diaphragm then does not have sufficient favorable pressure and also tears. Dodge has acknowledged this problem as they will certainly no longer also market the lift pump that takes place the side of the block, they replace it with a system that is currently mounted in the storage tank. The typical cost of having the lift pump put in the container has to do with $800.

The next most common mechanical failure of the VP44 is that the blades seizes in the head of the pump. This once more can be contributed to the lift pump not giving sufficient fuel to the injection pump. Gasoline is utilized as a lubricating substance, so when there is an inadequate amount of fuel the rotor does not get lubed properly. If the blades takes the truck wont beginning and the VP44 Injection Pump should be changed.

The last factor for the failing of the VP44 pump is electric problems with the computer system on top of the pump. Warm is the primary reason connected with this issue, causing the soldered parts to end up being crystallized gradually and make poor connections. Absence of gas is once again part of the trouble, due to the fact that the VP44 is cooled with fuel rather than oil (as the old P7100 12valve pumps). When this issue occurs you will generally experience periodic difficult starts, white smoke as well as what’s typically referred to as “The Dead Pedal”.