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

Bosch VP44 injection pumps perform 4 standard functions:

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

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

3. Varying the timing relative to engine speed.

four. Making 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 includes fuelling, timing, and diagnostic information.

The quantity one result in of Bosch VP44 injection pump failure is a drop in fuel line pressure, which is typically due to a malfunctioning lift pump. Typical fuel pressure is around 15psi and if the pressure drops below 5psi an injection pump failure is probable. Keep in mind poor lift pumps can run unnoticed until expensive damage is carried out to the Bosch VP44 injection pump.

The following are the best two most widespread mechanical failures:

1. Examine Engine Code 216

This is the most frequent mechanical failure and occurs more than 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 till 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 a unit that is now mounted in the tank.

two. Rotor Seizure

One more mechanical failure with the Bosch VP44 injection pump takes place when the rotor seizes in the distributor section of the pump. The most typical result in for the seizure is a lack of lubrication. Since the fuel lubricates the Bosch VP44 injection pumps, weak lifts pumps can again be blamed for this failure. The seizure will then break the Drive Plate and the truck will cease operating, never ever to begin yet again, until the Bosch VP44 injection pump is replaced.

Stopping Bosch VP44 injection pump Failure

The best way to keep away from failures of the Bosch VP44 injection pump is to avoid them from happening. Buying a replacement lift pump, 1 that is of a better top quality than what comes from the factory will aid. If that alternative is too costly, you can also set up 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 easily fix the difficulty ahead of you lose the Bosch VP44 injection pump.

Preventing troubles prior to they happen is the best way to take care of your truck. return to site ionways delphi apec ro