Engine/Transmission (1998.5 - 2002) Why don't we fix the lift pump problems?

[BennyHL]

I read all this mess about lift pumps failing and ask why we don't just fix the problem ourselves. It's obvious Dodge isn't going to solve everyone's problem in the near future. You can't convince me this problem is not easily remedied with a simple solution at a small price. I think relocating the lift pump is a start, but it seems to me there are plenty of things wrong.



12 valves don't have this premature lift pump problems, correct? What lift pumps are on those trucks and where are they located? Why not retrofit those lp's onto 24 valve trucks? We're just dealing with a diesel motor and a diesel fuel pump. There has to be a pump out there better built and not prone to failure that fits 24 valve specs. Has anyone tried this?



I would think it's time to stop taking failed lift pumps to the dealer and replacing crappy parts with the same crappy part. Find something else that works, forget the dealer, and be happy.



Comments?

 

[NPloysa]

Most of us are doing that already and have been for years! Either a pusher or pusher and stock combo, or an upgrade to one bigger pump, or just keep replacing the stocker.



As for me I replaced the stocker once with another stocker and plan to relocate it nearer the tank so that it can do its intended job as a pusher pump and not a puller.

 

[BennyHL]

Originally posted by NPloysa

Most of us are doing that already and have been for years! Either a pusher or pusher and stock combo, or an upgrade to one bigger pump, or just keep replacing the stocker.



As for me I replaced the stocker once with another stocker and plan to relocate it nearer the tank so that it can do its intended job as a pusher pump and not a puller.

What are some of the bigger replacement pumps being used and how are they working? It's obvious everyone needs to go that route instead of 15 different stock replacements. I just see so many threads about it that it's unnerving.

 

[ToolManTimTaylor]

Ben That's where the "Pusher Pump" Came from , The "Fass" system , The "PE 4200 , 4100 , 4300" Pumps came from and 4 years of R&D by many of the members here. Some people have luck at the dealer some don't some are tech savy and know the risks and tribulations of an experimental system and some just want the stock truck to live with the stock parts and want the dealer to hang in there with them. ALOT has happened ... check out the links above.

 

[NPloysa]

TMTT said it!

Originally posted by BennyHL

What are some of the bigger replacement pumps being used and how are they working? It's obvious everyone needs to go that route instead of 15 different stock replacements. I just see so many threads about it that it's unnerving.

 

[BennyHL]

Originally posted by ToolManTimTaylor

Ben That's where the "Pusher Pump" Came from , The "Fass" system , The "PE 4200 , 4100 , 4300" Pumps came from and 4 years of R&D by many of the members here. Some people have luck at the dealer some don't some are tech savy and know the risks and tribulations of an experimental system and some just want the stock truck to live with the stock parts and want the dealer to hang in there with them. ALOT has happened ... check out the links above.

Cool, that's more like I like to see. Haven't been up to date much on that and didn't realize some of those alternatives were there. One big aftermarket is the way I'll go. Thanks for the info.

 

[jgillott]

It is possible run a 12-valve mechanical style lift pump on a 24-valve motor. There are several aftermarket suppliers that offer a 24-valve cam that includes the needed lobe to run the mechanical pump. I think that both Diesel Dynamics and Piers (and possibly some others that I am not aware of) offer cams that will support this conversion.



Justin

 

[ToolManTimTaylor]

Originally posted by BennyHL

Thanks for the info.

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[Hohn]

Originally posted by BennyHL

What are some of the bigger replacement pumps being used and how are they working? It's obvious everyone needs to go that route instead of 15 different stock replacements. I just see so many threads about it that it's unnerving.

I don't consider it obvious. My pump is performing nicely for my purposes, and while I may not trust it completely (by reputation), it has never given me a reason to doubt it.



IMHO, the restrictive fuel fittings are the biggest thing to address. The stock lift pump can move some fuel if not encumbered.



Justin

 

[RustyJC]

Although I'm only at 19,500 miles, between my BOMBs (see signature) and 90% of the truck's life being spent towing our 13,500 lb 5th wheel, I haven't been easy on my original lift pump. I installed Ray's banjo bolts at around 2,000 miles, and my original LP still puts out 16+ PSIG @ idle and 11-12 PSIG @ WOT.



Rusty

 

[BKilbury]

i ran the original pump for 120k, replaced it just for peace of mind and installed larger banjo fittings, it now never goes below 12 psi and idles at 15, good enough for my mild bombs.