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Bosch VP44 Fuel Injection PumpsFor Cummins 5.9L |
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View Our Policies for These Pumps:
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Free UPS Ground Shipping Residential on Orders Over $750**Some additives may not qualify. All Products that do not qualify are marked. |
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*Performance chip & add on disclaimerTampering with the pump's wires can cause premature pump failure. If the wires are cut the pump is no longer warrantable, and any repairs that need to be made to the injection pump will be the buyer's responsibility. In the VP44 pump the fuel is used to cool and lubricate the pump, and the tolerances between the head and the rotor is very fine. Performance chip add-ons affect the cooling rate of the pump. The pump will become hotter due to excessive RPMs from the chips programming. When the throttle is backed off the fuel to the pump is reduced, and the pump's cooling capabilities are greatly reduced. Since the pump is hotter from the increased RPMs the rotor siezes in the head and the pump fails. An alternative to cutting into the pump's wires is to use a chip that plugs directly into the trucks ECM. This approach will allow for an increase in HP while not excessively heating the fuel pump. A great example of this is the DiabloSport Power Puck.Click here for product info |
*Defective VP44 Engine CodesThe retrieval of codes does not constitute an engine diagnosis. However, there are some codes that usually indicate a defective injection pump. A current P1688 always means that the pump is bad, there is no further diagnosis required. Code P0216 is probably the most common code for VP-44 Pumps. If transfer pump pressure has been checked and is O.K., the injection pump is defective. Other codes that are less common are P0180, P0181, P0215, P0251, P0252, P0253, P0254, P0370, P1287, P1689 and P1690. These codes USUALLY, but not always indicate a defective pump. There are wiring and power checks to be performed if these codes are present. These codes relate to Dodge pickups only, and are not for any other ISB application. |
| Finding the Engine Serial Number on Cummins ISB 24 Valve 5.9 L Engines | |
The Engine Serial number is on the engine data plate, which can be found on the drivers side of the timing gear case. The plate shows the CPL (control parts list) number, date of manufacture, timing specs, & the engine serial number. |
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Increase
fuel mileage and help prevent premature pump and injector failure with top
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