Info on Bosch VP 44 Diesel Pumps for Diesel Trucks

Jul 26, 2012 by WendiDingfelder

If you are searching for a new injection pump for your Dodge Cummins diesel engine, but are not confident which is the best model, than please continue reading. In this article we clarify some typical failures with injection pumps. The Cummins diesel engine manufactured by Dodge between 1998 and 2002 came equipped with a Bosch VP44 injection pump. Unfortunately these injection pumps have been know to have their fair share of concerns and might require to be replaced.

Bosch VP44 injection pumps perform 4 fundamental functions:

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

2. Metering the precise quantity of fuel for every single injection cycle

3. Varying the timing relative to engine speed.

4. Producing the high fuel pressure necessary 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 number one result in of Bosch VP44 injection pump failure is a drop in fuel line pressure, which is normally due to a malfunctioning lift pump. Regular fuel pressure is about 15psi and if the pressure drops below 5psi an injection pump failure is probable. Remember negative lift pumps can run unnoticed until pricey harm is completed to the Bosch VP44 injection pump.

The following are the best two most typical mechanical failures:

1. Check Engine Code 216

This is the most common mechanical failure and occurs 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 exactly where it wears the housing of the pump down until the fuel is able to bypass the piston. Dodge has recognized this problem for some time, and they no longer even sell the lift pump that goes on the side of the block anymore, rather they replace it with an unit that is now mounted in the tank.

two. Rotor Seizure

Yet another mechanical failure with the Bosch VP44 injection pump occurs when the rotor seizes in the distributor section of the pump. The most prevalent cause for the seizure is a lack of lubrication. Since the fuel lubricates the Bosch VP44 injection pumps, weak lifts pumps can once again be blamed for this failure. The seizure will then break the Drive Plate and the truck will quit running, by no means to start off once more, till the Bosch VP44 injection pump is replaced.

Stopping Bosch VP44 injection pump Failure

The very best way to steer clear of failures of the Bosch VP44 injection pump is to stop them from happening. Buying a replacement lift pump, one that is of a far better quality than what comes from the factory will help. If that alternative is too costly, 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 simply fix the issue prior to you shed the Bosch VP44 injection pump.

Preventing difficulties just before they happen is the very best way to take care of your truck.

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