Engine/Transmission (1998.5 - 2002) Relocating lift pump

[RAMN4EVR]

I was looking at Practical Solution Diesel products web site wwwSDIESELPROCUDUCTS. COM they have a wiring harness that relocates your lift pump towards your fuel tank. I would like to know if this would help extend the life of my lift pump. the dealership is installing a new one today, after 40,000 miles on my 01,3500,6 spd.

Also how often does everyone change their fuel filter?

 

[krs]

In my opinion relocating the liftpump and adding a 2 micron or better filter ahead of the pump will solve the liftpump problem with our trucks. As the OEM filter with recommended element meets that criteria I think that moving both assemblies to a location on the frame in front of the fuel tank is the ticket to longevity in the supply system. There are other methods of reducing the pumps load - an additional 'pusher' pump most noticably - but I think that those are unnecessary or unnecessarily complex. Why have two pumps subject to failure when assuring clean product to one will resolve most of it's failure inducing conditions?



That said, I think too that increasing the lubricity of the fuel by additive will assure a long life for both the liftpump and the vp44 injection pump. The injection pump fails by lack of lubrication during deceleration and by being made to work in forced strain beyond it's capacity by added gimmickry which electronically asks too much of it. The 'comp' box is the leader amongst these sorts of autodiesel quackery. So give the pump a lube which will 'stick' to it's rotor parts during periods of nonfueling, don't monkey with it beyond it's design limitations (about 400 hp -how much power do you NEED anyway?) and it's the best piece of equipment on the market today.



I'm out

 

[Rockcrusher]

Originally posted by KRS

In my opinion relocating the liftpump and adding a 2 micron or better filter ahead of the pump will solve the liftpump problem with our trucks. As the OEM filter with recommended element meets that criteria I think that moving both assemblies to a location on the frame in front of the fuel tank is the ticket to longevity in the supply system. There are other methods of reducing the pumps load - an additional 'pusher' pump most noticably - but I think that those are unnecessary or unnecessarily complex. Why have two pumps subject to failure when assuring clean product to one will resolve most of it's failure inducing conditions?



That said, I think too that increasing the lubricity of the fuel by additive will assure a long life for both the liftpump and the vp44 injection pump. The injection pump fails by lack of lubrication during deceleration and by being made to work in forced strain beyond it's capacity by added gimmickry which electronically asks too much of it. The 'comp' box is the leader amongst these sorts of autodiesel quackery. So give the pump a lube which will 'stick' to it's rotor parts during periods of nonfueling, don't monkey with it beyond it's design limitations (about 400 hp -how much power do you NEED anyway?) and it's the best piece of equipment on the market today.



I'm out

Concur. Reducing the lift on any pump improves its ability.

 

[CHeiny]

Originally posted by KRS

... . (about 400 hp -how much power do you NEED anyway?) ... .

More. You always need 50 more hp.



Whether you can use that 50 hp is another matter entirely.