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If you are looking for a new injection pump for your Dodge Cummins diesel engine, but are not sure which is the best model, than please continue studying. In this write-up we explain some common failures with injection pumps. The Cummins diesel engine manufactured by Dodge in between 1998 and 2002 came equipped with a Bosch VP44 injection pump. Regrettably these injection pumps have been know to have their fair share of problems and could require to be replaced.

Bosch VP44 injection pumps perform four standard functions:

1. Distributing the high-pressure, metered fuel to every single cylinder at the precise time

2. Metering the exact amount of fuel for each and every injection cycle

3. Varying the timing relative to engine speed.

4. Producing the high fuel pressure expected 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 information.

The number one particular trigger of Bosch VP44 injection pump failure is a drop in fuel line pressure, which is typically due to a malfunctioning lift pump. Regular fuel pressure is around 15psi and if the pressure drops below 5psi an injection pump failure is probable. Remember bad lift pumps can run unnoticed till pricey damage is carried out to the Bosch VP44 injection pump.

The following are the prime two most common mechanical failures:

1. Check Engine Code 216

This is the most typical 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 till 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, as an alternative 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 frequent lead to for the seizure is a lack of lubrication. Because 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 quit running, never ever to begin once more, till the Bosch VP44 injection pump is replaced.

Preventing Bosch VP44 injection pump Failure

The very best way to avoid failures of the Bosch VP44 injection pump is to avert them from occurring. Purchasing a replacement lift pump, a single that is of a better good quality than what comes from the factory will aid. If that solution is too expensive, you can also install a gauge to monitor your fuel pressure. With the gauge you will be able to know when your lift pump is going out and can very easily fix the dilemma before you lose the Bosch VP44 injection pump.

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