If you are looking for a new injection pump for Dodge Cummins diesel engine, but is not sure what is the best model, please read on. This article will explain some common faults with injection pumps. The Cummins diesel engine manufactured by Dodge from 1998 to 2002 comes equipped with a Bosch VP44 injection pump. Unfortunately these injection pumps have been know to have its fair share of problems and may require replacement.Bosch VP44 injection pumps
Perform four basic functions:
1. Distribution of high pressure, measured at each cylinder at the right time fuel
2. Measuring the exact amount of fuel for each injection cycle3.
varying timing relative to the engine speed.
4. Production of high fuel pressure required for injection
The Bosch VP44 is an electronic rotary distributor pump that can vary fuel injection timing, and also contains fueling, timing and diagnostic data.
The number one cause of failure of the Bosch VP44 injection pump is a pressure drop in the fuel line, which is usually due to a malfunction of the lift pump. The normal fuel pressure is about 15 psi, and if the pressure drops below 5 psi failure injection pump is likely. Remember bad lift pumps can run unnoticed until costly damage is done to the injection pump Bosch VP44.
The following are the top two most common mechanical failures:
1. Check Engine Code 216
This is the most common mechanical failure and when weak lift pumps, with low fuel pressure occurs during a time period; rupture the diaphragm on the front of the injection pump. The piston then vibrate timing to a point carrying the pump housing down until the fuel is able to bypass the piston. Dodge has recognized this problem for some time, and not even sell the lift pump that goes on the side of the block again, but replace it with a unit that is now mounted in the tank.
2. Rotor Seizure
Other mechanical failure with the Bosch VP44 injection pump happens when the rotor seizes in the distributor section of the pump. The most common seizure cause is a lack of lubrication. Since lubricates fuel injection pumps Bosch VP44, weak lifts pumps can again be blamed for this failure. The seizure then break the drive plate and the truck will stop running, not start again until the Bosch VP44 injection pump is replaced.Prevention
Bosch VP44 injection pump failure
The best way to avoid the failures of the Bosch VP44 injection pump is prevent them from happening. Buying a replacement pump, which is of better quality than what comes from the factory will help. If that option is too expensive, you can also install a meter to monitor your fuel pressure. Also with the meter you will know when your lift pump is out and can easily solve the problem before you lose the Bosch VP44 injection pump.
Preventing problems before they occur is the best way to care for your truck.
Any tools needed for your diesel truck? Light or heavy duty, you can find all that you need at 1-800 Automotive Tools.
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