Vp44 Injection Pump Repair Manual Service

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How much Fuel Pressure Should the VP44 Injection Pump Regularly Receive?

There is a diaphragm located inside the VP44 injection pump that is very sensitive. This VP44 diaphragm works best under pressures between 10 and 15 PSI. Some pumps will be able to run higher than that but GIllett Diesel does not 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 VP 44.

How Do I Check Lift Pump Pressure to the VP44?

This method will vary depending on what truck year you have. 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 located on the side of the VP44.

Are Gillett Diesel’s VP44 Injection Pumps New or Rebuilt?

Bosch is no longer casting housing’s for the VP44 injection pump. Therefore at this time ALL VP44 injection pumps require a used housing, also known as core, to be rebuilt. Due to the need of a core, there is no such thing as a completely new VP44, even though some are advertised as such.

Do the Injection Pumps Come With a Removal Tool?

Our injection pumps do not come with a removal tool. Gillett Diesel recommends going to your local parts store and purchasing steering wheel removal tool. The threaded holes on the gear are M8 x 1.25. You also need a couple of bolts meeting those specs.

Does Gillett Diesel’s VP44s have new computers (PSG)?

Before a VP44 is rebuilt the computer portion is removed and tested. If the computer does not meet every single one of the qualifications mandated by Bosch then the entire computer is replaced regardless of the failed qualification. If the computer meets all of the Bosch qualifications then it is reused.

How Do I Tell If I Have a 17x or 15x VP44

Every Bosch manufactured pump has data tag on one side of the pump, driver’s side when located on vehicle. On this tag there will a 10 digit Bosch number that is stamped into the metal. The first 8 digits of this number should read 04705060. The last two digits of this number are the identifiers of the type of pump. If the pump is on a light duty dodge cummins pickup, and the last two digits are a multiple of 7, then the pump is a 17x. If the last two digits are not a multiple of 7 then it will be a 15x pump.

What Wire Do I Tap on a VP44 Injection Pump?

Vp44 Injection Pump Repair Manual Service

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 taped for installation of some modules.

Does Gillett Diesel Charge for Cores Up Front?

Sometimes. On replacement parts that our customers order frequently we have taken steps to prevent core charges up front. However on some items we do still require an upfront core charge. Check out our core policy page. (Link to Core Policy)

What is Gillett’s Warranty on a VP44 injection pump?

Gillett’s warranty on VP44 is 1 year unlimited miles. The two most common things that will void your warranty are fuel contamination and inadequate fuel pressure. Both of these issues can be prevented by an upgrade to the lift pump system FASS system (Link).

Where can I buy a VP44 pump?

Gillett Diesel offers replacement Bosch Vp44 Fuel Injection Pumps that have been rebuilt by a certified Bosch tech and have been tested obefore the pump is sent to a customer. Bosch VP 44 diesel pumps are also upgraded with all the latest upgrades required by Bosch. The VP44 injection pumps come with a 12/12 warranty. If you unsure or just want some free advice on your pump you can reach to us at 800-638-4679.

Doty Brown
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Good thread. Item - Distributor injection pump (VP44).

Bosch order number: 0 Replacement part note, No spare parts list available; no repair possible. Bosch No, Description, Product Category, Type No, Zexel No, Old No, OE No.

, Enj. Pompası, VP44, VR4/2/70MR, , 'OPE. Products 1 - 12 of 94 The Bosch VP44 Injection Pump Overflow Valve is located on the side of the injection pump.

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New VP44 Fuel Injection Pump YD25 DTi for Nissan Frontier & Navara D22 Pick up. A good lubrication of parts that push, contact, or slide is essential during the reassembly.

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Dodge Vp44 Injection Pump

Bosch’s Remanufactured Diesel Injectors are produced at the same Bosch facility as the new diesel injectors.

All wearable parts and critical components are replaced with genuine Bosch parts, and the latest original equipment production technology is used. the instruction of disassembly of a bosch vp30 or vp44 pump driver in order to send it for repair: attention!

Vp44 Injection Pump Repair

you do not need to dismantle the whole pump out of your car.Common Bosch VP44 Fuel Pump Failures and Fixes - Baileys Diesel GroupCommon Bosch VP44 Fuel Pump Failures and Fixes - Baileys Diesel Group