How many miles before the OEM lift pump dies?

[WyoJim]

I wonder what is the most miles any one has got out of the original electric lift pump?

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98. 5 24 valve auto, QC, LB, EZ, DTT vb 9 1/2ft 3500# slide in S&S Camper

 

[K_Arts]

Mine was replace at 7200 miles

Kev

 

[Jeff Clark]

I got 70,000 out of the first and 30,000 out of the second.

 

[Mopar-muscle]

jim , no clue , but i do know they they ALL will fail if left unchecked ...

jeff how many years to get that mileage ?

mine was replaced after about 6k under the recall and lost about a 1 psi worth of pressure in the next 36k . i'm not going to wait for it to fail and i sure in he!! ain't waiting to burn up my injection pump . DC won't fix it correctly .

 

[Jeff Clark]

MM, about 2. 5 years for the first at 70,000. A little less than one year for the second at 30,000.

 

[Ram_Kowboy]

107,755 and still on the original lift pump. I haven't even done a pressure check.

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98 Properly Valved 4x4 SWB QC ISB A/T Metallic Red w/ tan cloth interior, DC nerf bars, DC two piece mud-flaps, 275 h. p. injectors, Monroe Gas Magnums, Armor Tuff spray in bed liner, Goodyear Wrangler ATS 285/75r/16, BD Heavy Duty Valve body. Walker 21468 thru flow muffler,Cobra 29 NWST CB. American Racing Wheels. Power Edge EZ control module,Tuff Country 2" Leveling System, Draw-Tite Front Mount Receiver.

 

[EMDDIESEL]

This lift pump failure affect the 2001 trucks too?

 

[Bent6]

97000 miles on the original and still going strong!:d

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Will - -- email address removed -- - 98. 5 3500, black, 24v, auto, 4. 10, fold-away gooseneck hitch, Poweredge EZ w/ boost elbow, K&N Filter, Isspro 50# Boost, EGT, transmission Temp gauges mounted on A-pillar, & more to come!
38ft United Expressline X-Treme Race Car Hauler weighing in @ 12000# loaded
Other Bad Habit:
'87 Pro-Street Buick Grand National, 272cid Stage II Buick V-6, SINGLE turbo, 1400hp, 1200ft/lbs @ 24# boost
Best 60ft: 1. 11
Best 1/8 mile: 4. 99 @ 142mph
Best 1/4 mile: 7. 70 @ 179mph
And Lookin' For More!!!
So I'm A Turbo Man!
Boost On!

 

[pres10]

67,000 for mine, but the last two times I changed the fuel filter I had a real hard time getting it bled. So probably more like 47,000 ... . at the time I was still ignorant about the lift pump problems and thought I just was not getting from the key to the filter quickly enough.

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2K Auto, 354 gears, VA and BLUE box, 4" exhaust, Auto Meter EGT and 60# Boost Guage, pressure lock,(soon to be replaced by DTT VB and TC) every option but the sliding rear window and snow plow prep. and sport package

 

[Max340]

Just a thought: Mopar, maybe ya could put together a list of materials, and a general location/routing description of your mods/replacement to the lift pump and see if they would put it in the archive and the quarterly publication. I know they seem to always be looking for material for the mag.



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Y2K 2500 QC Sport 4x4 LWB
72 Dart 340
89 LeBaron GTC 2. 2 TI

 

[kevin1]

my 2001. 5 eth/dee has 13000 mile on it and that pump is on the way out 9 psi at idle I need a bigger fuel system anyway I am my own warrenty I don't trust dc to change the air in the tires

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2001. 5 ETH/DEE 4x4, DRW QC, DD supermental injectors, EZ, HX40 machined out for more flow, Custom 4" exhaust turbo back staight pipe with 5" chrome tip in front of rear tires,spa's, mcleod clutch, fuel lines,mag hytech rear end cover,psycotty air system,relocated blow by bottle,Lucerix power heated mirrors,more to come

 

[Archive]

About 29,000 Miles (14 Months)

 

[B. Gill]

mine has gone out twice in 33000 miles

 

[WyoJim]

Not every one has included their signature. but a picture is forming of less problems with the 98. 5 lift pump.

What if the switch by DC to the electric pump put enough demand on Federal-Mogul's mfg. capability for them to loosen their quality control and take an "out the door attitude" for their deliver to DC.

Then pump failures started being a pain for DC so they engineered a restriction in the 2001 pump to filter line, hoping to solve the problem.

This scenario also answers why OEM replacements don't last as long as the after market pumps.

Remember this is only what if because I don't know anything!!!

 

[Mopar-muscle]

jim , thats an interesting scenerio , i don't think the problem is with FM , the pump is failing because of DC's choice of placement .

also the restriction you speak of started in 2000 with the filter housing change , can't imagine how reduding volume would help other than the fact that the lift pump could be pumping more than the filter can flow , which is now my next hurdle .

ram cowboy and bent6 , care to measure your fuel pressures and post the results , also what mods if any ????

[This message has been edited by Mopar-muscle (edited 04-13-2001). ]

 

[Max Wedge]

11,850 on mine, no problem yet--seems if it lasts past 7000 miles it might last for a while. But when it goes, the Mallory Comp 140 will replace it back at the tank.

Semi

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Y2K Black 3500 4x4 SLT+ Leather ETC/DGA DMF/DSA Luverne SST Bars
'64 Plymouth 426 III (Max Wedge)
'79 Chrysler 300 T-Tops NRA Member

 

[Mopar-muscle]

semi , mine was working ok i guess , did notice that it did start a bit easier after replcement , they changed it out because the service action told them to .

 

[Posm]

54,000 for mine. I ran out of fuel (my stupidity) and it took 2 hours to get it to pick up again. I also had a lot of trouble getting it to fire after my last fuel filter change. My dealer checked and replaced it under the 70K emisions warranty.

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Y2K 2500, QC, 4X4, 3. 54LS, ST, 5 speed, SWB,Cummins E-brake,Westech Pyro and Boost Dual guage, 12 Disk JVC CD

 

[FCrawford]

About 144,000 in 17 months. 99 Chassis cab. Cummins dealer replaced it.

 

[BRIAN LUNG]

Mine just quit tonight. 2001 ETH with 27,000 miles and no bombing. does any one know how much the oem pump cost to replace? i need to fix it quick so i dont have time to do any mods.

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96 2500 EXTCAB. AUTO 4. 10
2001 3500 QUADCAB WITH ALL THE GOODS

[This message has been edited by BRIAN LUNG (edited 04-13-2001). ]