Engine/Transmission (1998.5 - 2002) How is your Fedex pump holding up ?

[Timbeaux38]

A while back, Bosch introduced a VP44 that is supposed to last longer as a result of failures on Fedex trucks. I was wondering if folks were having better luck with the upgraded pumps, when did you install, and how many miles do you have?

 

[Jetpilot]

All pumps should now use the "FedEx" module or even the newer version released in the begining of the year. All the modules are the same contrary to data published elsewhere. As long as the rebuilder doesn't have extremely old stock you should at least get the FedEx version and some shops will even have the newest version released this year.



Doug Smith

 

[Timbeaux38]

When did the Fedex pump come about Doug? I have an April 04 pump

 

[blacksheepdiesel]

I have 101,000 mi on my Blue Chip/FedEx pump. No issues to this point. 'Course the original VP lasted 400,000 mi so this new one has a ways to go before I know if it will last longer. But to be fair it probably won't last as long. Until this spring the truck was on the road all the time, now it is still driven quite a bit but not nearly the miles. And now it is turned on and off multiple times per day per 150 mi when before it might get cycled 2 times per 650 mi. in a day.



So far I am pleased.



Trent

 

[DMcPherson]

yeah the "fed ex" pump is the latest version. same as all the other campaign pumps that are produced. the pump was not designed for fed ex, I think the first aplication for the campaign pump was actually school busses.

 

[mhenon]

All pumps should now use the "FedEx" module or even the newer version released in the begining of the year. All the modules are the same contrary to data published elsewhere. As long as the rebuilder doesn't have extremely old stock you should at least get the FedEx version and some shops will even have the newest version released this year.



Doug Smith

My VP was swapped out under warrenty in August '05. Did I get the FedEx pump or a plain vanilla VP.

Also, what's in the "new" version?

Mike

 

[Timbeaux38]

I assume you have a fedex pump. All VP's now have the upgrade

 

[SpicyJam]

This may either get you scratching your heads again or maybe not. Lets break down the pumps out there.

REV 027 98. 5 to '02 SO trucks or ETC's

REV 028 '01 '02 HO 6pd ETH's

REV 029 "The so called Fed Ex pump" Otherwise found in RV's and other commercial rigs.

REV 030 This is the latest and greatest.



Now there are a couple of things with our VP's that I seem to know. Those of you that have the 027 pump and get a reman still get a 027 programed pump with the 029 PSG in it, or now it could be the 030.

If you have a true Fed Ex pump, well I will tell you that you can only get it to rev to 2700rpm no matter what box you have on it. I know I have been testing these things for a couple of years now.

The PSG is different than the programing of the pump. In June I sent in a core that was a true 029 pump and core refund to the customer was reduced, reason being it was a true 029 pump, meaning that there is not a big demand for them from the RV crowd. The pump did come out of a 98. 5 2500 truck, this 029 pump will work in a SO truck, but not in a ETH.

Maybe what happens with the Hot Rod pump will help clear things up..... because it works in all trucks right? Yep it does, because it is a 028 pump with the 029 PSG or the new 030 PSG in it now. Reason it works in both the ETC and the ETH is that again it is a ETH pump, and the ETC has always been able to run a HO VP on it, just not the other way around.

So now for those of you that have bought re-man pumps, yes you have the latest in electronics, but if you have a 027 pump, and it craps out, you still get a 027 back, just with the new 029 or the 030 PSG. That's it in a nut shell. So if you do have a true "Fed-Ex" pump, there is no benefit from it other than your truck will defuel at 2700rpm, no matter what fueling box you have on it. I have confirmed this on the dyno as well as with a Bosch service shop.

Hope I didn't confuse anyone too much, later Jim.

 

[tharonian]

which pump do I have

Just had a new VP44 pump under warranty. How can I tell which version I got?

Thanks.

Tom



01. 5 2500. 4X4, EZ, 4" exh, ISS Pro gauges

 

[ToolManTimTaylor]

I assume you have a fedex pump. All VP's now have the upgrade

What are ya tryin to say there champ ? :-laf

 

[BradyWilliams]

The only way you can get a pump with the old PSG's is

A. The rebuilder is trying to reuse every PSG no matter what.

B. The rebuilder has old inventory because he does not rebuild many.

c. Someone may have got a hot deal on some old PSG's

Thanks

 

[Timbeaux38]

This may either get you scratching your heads again or maybe not. Lets break down the pumps out there.
REV 027 98. 5 to '02 SO trucks or ETC's
REV 028 '01 '02 HO 6pd ETH's
REV 029 "The so called Fed Ex pump" Otherwise found in RV's and other commercial rigs.
REV 030 This is the latest and greatest.

Now there are a couple of things with our VP's that I seem to know. Those of you that have the 027 pump and get a reman still get a 027 programed pump with the 029 PSG in it, or now it could be the 030.
If you have a true Fed Ex pump, well I will tell you that you can only get it to rev to 2700rpm no matter what box you have on it. I know I have been testing these things for a couple of years now.
The PSG is different than the programing of the pump. In June I sent in a core that was a true 029 pump and core refund to the customer was reduced, reason being it was a true 029 pump, meaning that there is not a big demand for them from the RV crowd. The pump did come out of a 98. 5 2500 truck, this 029 pump will work in a SO truck, but not in a ETH.
Maybe what happens with the Hot Rod pump will help clear things up..... because it works in all trucks right? Yep it does, because it is a 028 pump with the 029 PSG or the new 030 PSG in it now. Reason it works in both the ETC and the ETH is that again it is a ETH pump, and the ETC has always been able to run a HO VP on it, just not the other way around.
So now for those of you that have bought re-man pumps, yes you have the latest in electronics, but if you have a 027 pump, and it craps out, you still get a 027 back, just with the new 029 or the 030 PSG. That's it in a nut shell. So if you do have a true "Fed-Ex" pump, there is no benefit from it other than your truck will defuel at 2700rpm, no matter what fueling box you have on it. I have confirmed this on the dyno as well as with a Bosch service shop.
Hope I didn't confuse anyone too much, later Jim.

Thanks Jim
Maybe I should change the title to how is your new PSG working out. I'm trying to see if the upgrade is actually helping in relation to failures.

 

[isb360]

What does PSG mean?

 

[SKneeland]

this 029 pump will work in a SO truck, but not in a ETH.

Maybe what happens with the Hot Rod pump will help clear things up..... because it works in all trucks right? Yep it does, because it is a 028 pump with the 029 PSG or the new 030 PSG in it now. Reason it works in both the ETC and the ETH is that again it is a ETH pump, and the ETC has always been able to run a HO VP on it, just not the other way around.

.

ok, i thought the hotrod VPs were based off an SO/ETC pump (bigger plungers) and different electronics????



i want to put in a VP with bigger plungers, but with no timing modification. this way i can make use of the biggest injectors available.



my HO with its advanced timing, plus the added timing of my comp is too much when the temperature falls below freezing.

 

[SpicyJam]

ok, i thought the hotrod VPs were based off an SO/ETC pump (bigger plungers) and different electronics????



i want to put in a VP with bigger plungers, but with no timing modification. this way i can make use of the biggest injectors available.



my HO with its advanced timing, plus the added timing of my comp is too much when the temperature falls below freezing.

Why would you say that? I have the same truck, live in a cold climate in the winter, and actually the coldest I have ever started it was at 16 below not plugged in for 3 days.

I guess I do not know what your concern is, but no the HRVP is based on the 028 pump.

Besides, do you have your comp on all the time? I never turn mine on until I am either an a dyno or doing a little showing off... ...

 

[SKneeland]

my concern is:

1 i need a different pump to get anything out of bigger injectors, with the small HO plungers im at my injector limit



2 a reworked HO pump with an extra internal timing advance is not going to cut it (if this is infact all a hrvp,lightningvp, etc is???)



3 i want a way to put a pump with the SO VP sized (or bigger) plungers on my HO engine



i run with my comp on all the time. at temperatures below freezing theres way too much timing & it knocks and shudders like mad.