Engine/Transmission (1998.5 - 2002) Fog clearing VP POLL ! ! !

[rivercat]

Sadly im happy with my setup now but I fear that my VP will take a dump any time and am scared that I will be unsatisfied with a HRVP replacement. The mission of this poll is to:
exonerate the COMP/DragComp / or point the finger at it
show a general wiretap faliure pattern
show a random faliure majority
show a heat related faliure pattern
All POLL options are for pumps that have been monitored with a FP gauge and have had a healthy amount of fuel all their life. The low FP issue of faliure is a no brainer and is not the object of this poll
YOU CAN VOTE MORE THAN ONCE FOR MUTIPLE VP USERS

The strain is becoming too much for me to bare and im considering ditching the comp for a FMS and smarty- so I can keep the finetuning of the comp and still sleep at night...

It seems like some people can run a tap for 200k with zero problems while others eat them like supper is it the truck is cursed or the box?

BTW I can not vote as I have only 1k on my tap and have not expirienced a falure yet.


THANKS FOR VOTING !

 

[TGibbs]

Part of the problem with VPs dying is related to the fuel pump. That was what my problem was until I got on this website and then bought a RASP

 

[MKoth]

Part of the problem with VPs dying is related to the fuel pump. That was what my problem was until I got on this website and then bought a RASP

Not 100% of the time though. My VP only lasted 60K miles, and has had a FP gauges since new. The truck has never seen less then 7-8 PSI at WOT, but started to dead pedal, and lost power, so I replaced it with a HRVP44.

 

[Rebel Ram]

I read or heard somewhere that the stock pumps were more susceptible to mechanical failure due to some internal hard parts that are updated with better parts upon rebuild. I can neither confirm nor deny this claim, But since I got my rebuild I haven't had a pump problem since. I taped the wire before I installed the pump.

 

[Mundgyver]

The best protection for the VP is to open up the fuel line to 3/8ths or better I. D. straight which will increase the volumn supply potential and put on a Fuel Cooler before the VP. I am still on my original VP with 163,000+ turns on it now. I run a bottle of Power Service once a month or every tank on extended trips away from home.

 

[DLGonzo]

VP died almost right at 50K of putting it on, but that was at 180,000 miles. The second one is still pumping, but I don't know for how long. No real reason to believe it's going bad, just that feeling. Me and my truck have now become one. I spend soooo much time either in it or working on it.

 

[rweis]

Volumes of clean cool lubricated fuel at the right psi.



I have been watching the fuel input temperature and the VP44 electronics bay cover temps for 6 months now. Generally they are within 5* of each other. Fuel temp is part of it.



Brett Williams (II) replied to a post that the input psi should = 13. 5 psi (+- ~3 psi) or diaphram seals start to get beatup and fail. Psi is part of it.



Low sulfur fuel lacks lubricity. Additives (Stanadyne, Power Service, MMO, whatever, etc) that help lubricate the VP internals are part of it.



Fuel volume is part of it.



CLEAN fuel (no particulates & no free water) is part of it.



I have one more to add to the list:



After engine shutdown heat soak is part of it. However, I get the impression that the electronics board being used now is better built than the orgional was.



Bob Weis

 

[AKDrifter]

I aggre with the Bob's input above.



It also seems to be a design thing with our beloved VP's themselves,



anybody read this info yet about failure reasons of our IPs



http://www.frybrid.com/vp44.htm



Seems to pinpoint the potential for failure down to design over anything elce... ... ... ... ... ... . although, what Bob says above should give it it's best chance at survival.



Paul

 

[SKargo]

I dyed my VP44 blue. :-laf

 

[rivercat]

I dyed my VP44 blue. :-laf

what for ?

 

[rivercat]

For the benifit of the poor LP any one ever had a clooged intank pickup/sock cause FPs to creep down instead of a bad LP ? ?

 

[Turbo Tim 1]

148,580 miles as of today



106,000 plus or minus miles with the Edge Comp



When I bought the truck the lift pump was dead and that was at 24,000 miles, I replaced it and had good pressure up until I put in DD II's somewhere around the 120,000 mile mark then I could pull it down to 5 psi no problem, just recently put in a big line kit and moved the lift pump to the frame, now 9-10 psi is as low as it'll go.



If I was doing it over again I think I would go a different route but with that said I think the Comp gets blamed for a lot of VP's that were going to die early one way or another.

 

[rivercat]

I really thought This poll/thread would draw more intrest then it has. Got to be lots of broken hearted people that miss fallen VPs they have owned at one time or another or like me use their comp sparingly to avoid the loss. Any more thoughts? Does the first dead petal come with codes? I had a quick sort of hesitation on a cold start with plenty of FP, Not sure what it was.

 

[Turbo Tim 1]

Sorry rivercat, I seem to kill alot of threads with my positive results! :-laf

 

[rweis]

There seem to be an increasing number of threads of failed VP44's.



I wonder if the winter weather (not gelled, but thicker fuel) is having any effect (additives?). Fuel harder on the lp's? It did not seem to be as apparent in early winter, but rather after a couple of winter months.



It should be interesting if this increased number of failed VP44 threads also appears in late summer after the VP44's have been heat soaked for a few months.



Members seem to be replacing them theirselves like they would do lift pumps.



Interesting.



Bob Weis

 

[rivercat]

I would not be conserned with the number of 'threads" more a number of failed units or percentage of failed units.

 

[RustyJC]

I would not be conserned with the number of 'threads" more a number of failed units or percentage of failed units.

And therein lies the problem with your poll. Since some of us who have not experienced VP44 failures cannot vote, you don't have the statistical data to determine a failure rate or MTBF (mean time between failures).



Rusty