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If you are looking for a new injection pump for your Dodge Cummins diesel engine, but are not positive which is the best model, than please continue studying. In this article we clarify some frequent failures with injection pumps. The Cummins diesel engine manufactured by Dodge among 1998 and 2002 came equipped with a Bosch VP44 injection pump. Unfortunately these injection pumps have been know to have their fair share of troubles and could require to be replaced. Bosch VP44 injection pumps carry out 4 standard functions: 1. Distributing the high-pressure, metered fuel to each and every cylinder at the precise time ionways athena two. Metering the exact amount of fuel for each injection cycle three. Varying the timing relative to engine speed. 4. Creating the high fuel pressure required for injection The Bosch VP44 is an electronic rotary distributor pump that can differ fuelling and injection timing, and also contains fuelling, timing, and diagnostic data. The quantity one cause of Bosch VP44 injection pump failure is a drop in fuel line pressure, which is normally due to a malfunctioning lift pump. Typical fuel pressure is about 15psi and if the pressure drops below 5psi an injection pump failure is probable. Don't forget negative lift pumps can run unnoticed until costly harm is done to the Bosch VP44 injection pump. The following are the prime two most frequent mechanical failures: 1. Verify Engine Code 216 This is the most frequent mechanical failure and happens over a period of time when weak lift pumps, with low fuel pressure rupture the diaphragm in the front of the injection pump. The timing piston will then vibrate to a point where it wears the housing of the pump down until the fuel is able to bypass the piston. Dodge has recognized this dilemma for some time, and they no longer even sell the lift pump that goes on the side of the block any longer, rather they replace it with a unit that is now mounted in the tank. 2. Rotor Seizure An additional mechanical failure with the Bosch VP44 injection pump happens when the rotor seizes in the distributor section of the pump. The most typical lead to for the seizure is a lack of lubrication. Given that the fuel lubricates the Bosch VP44 injection pumps, weak lifts pumps can once more be blamed for this failure. The seizure will then break the Drive Plate and the truck will cease running, never to start off once again, till the Bosch VP44 injection pump is replaced. Stopping Bosch VP44 injection pump Failure The finest way to stay away from failures of the Bosch VP44 injection pump is to avert them from happening. Getting a replacement lift pump, a single that is of a far better good quality than what comes from the factory will assist. If that choice is as well expensive, you can also install a gauge to monitor your fuel pressure. With the gauge you will be in a position to know when your lift pump is going out and can simply fix the issue prior to you lose the Bosch VP44 injection pump. Preventing issues before they occur is the greatest way to take care of your truck.