Man I wish their was somebody around here that was that thorough, I've talked to I dont know how many people and the response is always, "hu.........................................um.... .....................I dont know try puttin' another pump in" not one shop or person, besides Gus (But NC is a bit of a drive) has said bring it in let me take a look and see if its something small. It would seem you have been through the same kind of ordeal, so I know you can understand my frustration.

 

My truck was dead for almost 2 months. Had been through Dodge, Cummins and a few local diesel shops. Nobody could find the problem and just wanted to start changin parts and we weren't goin there. So back home it went. By the time I got to the bosch guy I was desperate and really didn't give him much choice but to give me the info I wanted. At first he was pretty tight lipped about info but as the conversations went he opened up some and started helpin out.

 

Not all bosch shops have the equipment to check the vp44, they farm it out.

Asked a guy there work in the local shop, he told me the equipment cost is way above $ 100000. Since that pump only was in production a little over 3 year, no shops will invest to repair that pump.
They sell them rebuild $ 1200, pay $600.

 

I don't know about equipment used in the real world shops, I know in one of the millitary equipment maintenance shops I worked in we had a test bench that tested most any fuel pumps out there. You just hooked up the fuel lines and computer terminals that were pretty much universal and the only thing that changed was the computer pragram that operated the system and tested the pump functions. So the same bench did almost any fuel injection pump of that day, been a few years ago though. I never saw what this particular Bosch shop had, it was all behind closed doors.

 

what he's talking about that is 100k is the machine to remanufacture it. to check the specs and respec it.

 

Where can you get your pump "repaired" I have only seen completely rebuilt pumps for sale, and no offer of rebuilding. Does this "few dollars" include the electronics and recalibration? Thanks!

 

The only thing he would elaborate on was the banjo bolt that acts as a fuel pressure regulator saying that this going bad has been the reason for several pumps being replaced when the pump was just fine, just needed a new regulator because the spring wore out in the old one. This item happens to be an external part of the pump. He wasn't letting go of any trade secrets about the pump itself.

 

Oh. Nothing like having a mechanical pump rebuilt, huh?

 

The good ol' Pressure regulator on the side of the VP44 pumps...