Info on Bosch VP 44 Diesel Pumps for Diesel Trucks

If you are looking for a new injection pump for your Dodge Cummins diesel engine, but are not certain which is the ideal model, than please continue reading. Automotive Tools Hand Tools Power Tools Diagnostic Equipment - 1800Cheaptools hand tool. In this article we explain some frequent failures with injection pumps. The Cummins diesel engine manufactured by Dodge 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 issues and may need to have to be replaced.

Bosch VP44 injection pumps perform 4 simple functions:

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

two. Metering the precise amount of fuel for every single injection cycle

3. 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 vary fuelling and injection timing, and also contains fuelling, timing, and diagnostic data.

The number one trigger of Bosch VP44 injection pump failure is a drop in fuel line pressure, which is usually due to a malfunctioning lift pump. Impact Wrenches - 1800cheaptools air impact wrench. Normal 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 until expensive damage is done to the Bosch VP44 injection pump.

The following are the best two most prevalent mechanical failures:

1. Check Engine Code 216

This is the most typical 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 where it wears the housing of the pump down till the fuel is able to bypass the piston. Dodge has recognized this difficulty 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.

2. Rotor Seizure

An additional mechanical failure with the Bosch VP44 injection pump occurs when the rotor seizes in the distributor section of the pump. The most prevalent trigger 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 quit running, never to commence once again, until the Bosch VP44 injection pump is replaced.

Preventing Bosch VP44 injection pump Failure

The best way to avoid failures of the Bosch VP44 injection pump is to stop them from happening. Purchasing a replacement lift pump, 1 that is of a much better top quality than what comes from the factory will help. If that selection is too costly, you can also install a gauge to monitor your fuel pressure. Thexton Adjustable Ignition Spark Tester - THX404 - 1800CheapTools thexton. With the gauge you will be able to know when your lift pump is going out and can easily fix the dilemma prior to you shed the Bosch VP44 injection pump.

Stopping problems ahead of they occur is the best way to take care of your truck.