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Thoroughbred Sku #: TDPVP4424MONTH
Year/Make/Model: {{year}} {{make.Name}} {{model.Name}} Edit
$1,595.00
view all available part numbers
Product Name: VP44 2 Year Warranty Manufacturer: Bosch
At Thoroughbred Diesel, we are a leading distributor of VP44 pumps. We pride ourselves in offering the best quality VP44 with the longest warranty in the industry! These pumps are manufactured by an OEM certified remanufacturer that utilizes up to date and calibrated test stands to produce a high quality VP44 for an affordable price. Each pump has all the necessary OEM updates and is calibrated to the most current specifications, which means this is a quality product with a TWO YEAR UNLIMITED MILEAGE warranty for your piece of mind.
Diagnostic Trouble Codes (DTC) that mean your VP44 needs replaced: P0216 (often referred to as the code of death and most common code for VP44 pump failure) P1688 P1689 P0215 P0251 - P0260
If you are placing performance parts on your truck it is highly recommended that you use a performance lift pump such as the Airdog fuel system or Fass Fuel Systems. An Airdog or Fass Fuel System will supply the Injection pump with the fuel pressure that is need no matter what performance upgrades you have on your truck. We also offer several different gauge options from Autometer and Isspro to monitor your fuel pressure so you know when your lift pump is going out and can fix the problem before you lose your Injection Pump. The cheapest way to monitor your fuel pressure would be BD's early warning light. Preventing problems before they occur is the best way to take care of your truck. The fuel injection pump (VP44) is an electronic rotary distributor pump. The pump performs four basic functions:
No, we can run your ESN to verify.
Yes. Please contact our warranty dept. ext. 271
No, there is no core charge, for the vp44,if you send your core back within 14 business days.
You will get charged $500.00 if you do not return the core.The 2 yr warranty vp44 is $1149.00, 1 yr warranty $975.00.
This method will vary depending on what year your truck is. If you have a 98.5-99 Cummins there will be a 1/8 by 27 NPT port on top of the fuel filter housing. For this year truck, this is the most accurate place to insert your fuel pressure sensor to read the pressure supplied by your lift pump. For trucks ranging in year 99.5-2002 fuel pressure should be checked at the Schrader valve located on the side of the VP44.
Hard starts as they relate to VP44 injections pumps are caused by lack of fuel or over pressurization by the lift pump. If a lift pump is going bad and failing to supply the proper amount of fuel to the injection pump, then the truck will hard start due to lack of fuel. However, a newly installed lift pump that is pushing over 15 PSI to the VP44 can also cause hard starts. The VP44 is a very sensitive pump and needs approx. 12 PSI to run properly. Once you start getting about 15 PSI to the injection pump, you actually start to over pressurize the pump causing it to act as if you had a flooded engine.
There are two wires running from the back of the pump up to the computer portion on the top of the pump. This computer portion is known as the PSG. The wire that is closest to the engine and connects to the PSG is the wire that needs to be tapped for installation of some modules. Keep in mind that tapping this wire will void the warranty on your VP44. Thoroughbred Diesel recommends installing a BD stealth cover instead of notching the tap wire directly.
There is a diaphragm inside the VP44 that is somewhat sensitive. This particular diaphragm works best under pressures between 10 and 15 PSI. Some pumps will be able to run higher than that but we don't recommend it. After changing your VP44, if you notice continued hard starting or feel as though the pump is getting bogged down, it is probably time to check the lift pump pressure. Our recommendation for optimum fuel pressure is 12 PSI of the VP44.
The most common cause of VP44 failure is lack of fuel. Dodge trucks 98.5 and up are notorious for having weak lift pumps. Unlike most injection pumps, the VP44 is fuel cooled and lubricated. Therefore, if its fuel supply comes from a weak lift pump, it is very easy for the VP44 to overheat and cause damage to itself. This lack of fuel results in one of two types of failure within the VP44. One is that the diaphragm inside of the pump is damaged and does not allow the pump to build up the appropriate amount of pressure. The second is that the overheating causes the computer portion of the pump to also overheat and thus, creates a communication failure between the ECM and the Injection pump.