chuxtruk

Hi everyone
After reading all I could about lift pump problems in our 2nd gen 24 valve Cummins powered trucks here at THE forum on the subject, I have a couple of questions or comments too.

1. Upon installation of a fuel pressure gauge and a finding that there are currently no problems with my setup, TO ALIVIATE ANY FUTURE PROBLEMS AS FAR AS LIFT PUMPS ON MY TRUCK GOES, all I have to do is upgrade from the current lift pump to the latest available from Dodge/Cummins?? I'm not going to be upgrading to any big power making options, tho 300 - 350 hp is entirely possible. So my figuring is that an upgraded tho stock lift pump SHOULD suffice for the power I want. Is my thinking on this one correct?
2. Upon installation of the fuel pressure gauge and I find that my truck in the current configuration has a lift pump problem, ie LOW FUEL PRESSURE, then is the above solution O.K. or should I think about either a FASS or the system by Glacier, remembering the 350 hp factor?? I can see the FASS upgrades mentioned if you run mega horsepower and while I can afford to do the "right thing" in regards to the lift pump problem (should there be one), does a slight upgrade in power warrant the big buck expenditure of the FASS setup, the less expensive Glacier solution or just R&R'ing the stock setup, like I mentioned above??
Thanks for clearing up my LIFT PUMP CONFUSION for me!!
Chuck

Hillcountry

Well, I would not go with the upgraded "dealer" option which is the intank pump which is notorious for low pressure. I have gone with a carter pump on the framerail. Many will use a Holley Blue pump also. Fass and Walbro are good also and will meet the needs if you decide to increase power. More power=more fuel demand at the VP44 so if you have dreams of high power...go ahead and go with a high performance LP.

Wild4kst8

i would agree with Hillcountry... the dealer solution will always fail with a full tank of fuel (Murphy's Law)... plus, someone on here stated that they are only getting 5 psi & dealer said that is normal pressure from the in-tank solution...

i relocated mine to the frame rail w/ a carter... i purchased an extra ($60) therefore i can swap out when needed... plus, if i decide to upgrade in the future i'm already half way there...

BTW, i changed my filter about a month before relocating LP & i'm seeing 13 psi @ WOT

the_fox_man4

From my past, I would say Stay away from the carter pump that every one say's is the best mine lasted all off 6 months on the frame rail nexted to the tank MN winters took care of it down there. also the dealer option is way over priced junk. I would say go with a Fass or a Walbro I run the walbro and i am very happy with it. I picked it up from www.wideopendiesel.com take a look there they got some of the best prices out there for the kit.

chuxtruk

So the stock, untouched lift pump on my 2002 is in the tank??

dodgezilla04

no, your stock pump is not in the tank.

btw, my bd pump(which is a carter) has lasted over 1 year, and supports a bunch of power.

chuxtruk

Someone mentioned something in the tank or is that the dealer solution? I thought I read where they had found out about an internal problem with those pumps and that as long as you got the latest replacement from Cummins, all will be well. So that's wrong??

Here it is:

Cummins Service/Parts Topics

New Fuel Lift Pump

Fuel System-Bosch VP44-ISB

Market Application-All

This Service/Parts Topic announces the release of new fuel lift pumps for ISB and QSB VP44 series engines.

The new fuel lift pumps, Part Numbers 4932707(12 VDC) and Part Number 4932708(24 VDC), obsolete and supercede the previous fuel lift pumps (Part Numbers 3990105 and 3990106). The new fuel lift pumps have an internal bypass circuit in the rotor housing that allows fuel to be drawn, with less restriction, from the fuel tank to the injection pump in the event of an inoperable fuel lift pump.

There are no visual differences between the new fuel lift pumps and the old fuel lift pumps. The new fuel lift pumps can only be identified by part number.

Fuel Lift Pumps

Voltage New Lift Pump Part Number Old Lift Pump Part Number

12 VDC 4932707 3990105

24 VDC 4932706 3990106

Cummins Inc. All rights reserved

Wild4kst8

if '02s are same as '01s (i believe so)... LP is mounted on a bracket on the engine below & behind the fuel filter

chuxtruk

Well Known Lift Pump Solutions - Most Expensive First - Google For More Info

1a. FASS - about $650 for top of the line setup
1b. Fuel Boss Mechanical Lift Pump System - about $650
2. The Air Dog System - about $600
3. Wicked Diesel's Eliminator setup - about $600
4. Glacier Diesel Power's Walbro kit - about $370
5. Wide Open Diesel's AFS Big Dog Fuel System - about $320
6. BD Diesel Performance Lift Pump Kit - OEM Replacement - about $250
7. Wide Open Diesel's Do It Yourself Walbro Kit - about $170
8.. Vulcan's Pusher Pump system - about $120
9. R & R w/"factory" lift pump - about $70


What or who did I forget??? Thanks for the additions!!!

Hillcountry

You seem to have a comprehensive list there, the Campaign pump may be hard to get as some places restrict that to busses only...why I'm not sure. If you go to the dealer...they will put a pump in your tank. Cummins has issued a new pump (the campaign one) but I have seen it for more in the area of $75 dollars than 150. From what I hear the walbro and the vulcan kits are good. I made a relocation/bigline kit of my own and have run a carter pump for 2 years without a problem.

Dr. Evil

Ive heard very good things about the Big Dog kit....and its hard to argue with that price. Likely the biggest bang for the buck. JMO.

Cross the Campaign pump off your list - junk....as an alternative, you could go with a Vulcan kit and Holley Black/Blue or Carter 4601 HP.

chuxtruk

I'm just trying to get all of the/my options out there where I can see and grasp them. I've never been the most expensive kind of guy and I'm not the cheapest either. I'm a purchaser of MID-PRICED options after I study up on the situation. After all that reading, I like Glacier's setup tho till a couple of days ago I didn't know about the AFS Big Dog Fuel System, which also uses the Walbro pump. BOTH are in mid field as far as price goes and upper tier as far as quality, fitment and taking care of the problem they were designed to fix. Either system will do the job (as everyone on that list would do as well except that "factory fix".)
Heck, BD's solution even looks good!! Anyways, the next expenditure on my truck is going to this fix....whichever one I decide to go with. The Quadzilla Commander (gauges) should be here this week!!

slowflyer2112

You forgot these

http://www.wickeddiesels.com/eliminator.htm

Mechanical pump that runs off the front of the crank

Replace cam shaft and run mechanical pump (I think I'll do this one)

Great list though

chuxtruk

ADDED

Thanks!!

mbfarms

Add the Wide Open Diesel Do it yourself Walbro kit.http://www.wideopendiesel.com/page8.html