liftpump replacement

[jglasgow]

Can somebody give me a few different choices on an upgrade to the existing fuel delivery system on my 04 ram, I tried to use the search function but only came up with the fass system. Any help would be much appreciated. Thanks, John.

 

[rbattelle]

I think Diesel Dynamics offers a nice setup too.

 

[DBrundage]

2003+ lift pump failures

Has any one with a 2003-2004 had a lift pump failure? A multiple lift pump failure?

The new pump is totally different physically and not interchangeable with the old Carter and mounts on the filter bowel.

Is this new pump a cure or at least an improvement?

Any one know the manufacturer, typical PSI at idle or under heavy load?

Any one used Aeromotive for a pusher pump? FASS and Fuel Preportioner seem expensive overkill for near stock engines hauling a occassional 14,000 gvwr trailer.

Thoughts?

Donald Brundage

 

[Joseph Donnelly]

The new pump is supposed to be an improvement in reliability. If you add power, its volume may not be enough, and you can suck the pressure to zero immediately at full power. The DD pump kit gives enough pressure and volume, and they have not ever had a failure with their lift pump. That's a good start

 

[jglasgow]

My new gauges came in the mail yesterday, the Banks exhaust and the afe kit should be here next week. I am trying to take care of any week links before I decide on a fueling box because I know I am going to need transmisson work before to long. Latley I have been feeling kinda sick, How long does it take to shake this bombing bug?

 

[Prairie Dog]

How long? until your cash runs out and then just a little bit longer

 

[DBrundage]

Does the DD pump kit replace the existing fuel line with larger lines? If so, what kind of fuel line- braided stainless or what? Does the kit replace the banjo on the HP pump? Do you know what kind of pump is in the DD kit?

Donald

 

[HOCummins04]

Originally posted by Joseph Donnelly

The DD pump kit gives enough pressure and volume, and they have not ever had a failure with their lift pump. That's a good start

I went to www.dieseldynamics.com and looked under Dodge/Cummins - 2003. Found this:

03-04 Dodge Cummins 24v ISBe

Big Fuel Line / Pusher Pump Kit

DFLK02

--

Required for >400hp applications -



Joe: Is this what you have?

Does it replace factory LP or is this in addition to. What, if any, modifications had to be made to install it. Anything else needed for this upgrade?

 

[rbattelle]

I'd be very interested if someone could do an installation review with pics for the DD pusher pump kit...

-Ryan

 

[ThomasLawrence]

Does the DD pump kit replace the existing fuel line with larger lines? If so, what kind of fuel line- braided stainless or what? Does the kit replace the banjo on the HP pump? Do you know what kind of pump is in the DD kit?

Their kit keeps the stock 3/8" steel supply line, splices on a short piece of 3/8" rubber fuel hose to the Carter pump, then uses 3/8" rubber line up to an adapter that replaces the stock lift pump on the fuel filter canister with an AN-style fitting. Another piece of 3/8" fuel line, again with AN-style fittings on either end, replaces the stock line and banjo bolts from the filter to the injector pump.

 

[Briman]

Is the DD pump noisy (or the FASS for that mater)? Can you hear it in the cab?

 

[Joseph Donnelly]

I can hear mine , when the engine is off but the key is on. It is not loud, at least to me. Not noticeable to me when running. The price of performance, m'man!

 

[Gary - K7GLD]

"and they have not ever had a failure with their lift pump. That's a good start"



NOT to be a smart***, but there were probably precious FEW "failures" of the STOCK DC setup in the first few hundred trucks off the assemly line, either!



Let a few years and a few 100's of thousands of miles run under the floorboards of these "improved" systems before starting any cheerleading...

 

[ThomasLawrence]

Is the DD pump noisy (or the FASS for that mater)? Can you hear it in the cab?

The DD pump is noiser than the FASS, at least in my experience. People have reported good success in quieting the DD pump down by placing a rubber insulator (piece of a mudflap, for instance) between the mounting bracket and the frame rail. Benefits of the FASS are quieter operation, more pressure/flow, and the removal of air from the fuel. Benefits of the DD pump are cost ($200-$250 cheaper than the FASS), retention of the stock fuel filter/heater, and the ability to fuel the truck while idling (due to the high volume of fuel the FASS returns to the tank through the vent, you can't fill up while idling, or fuel will spill out).

 

[lmills]

The DD pump kit gives enough pressure and volume, and they have not ever had a failure with their lift pump. That's a good start

Actually Joe, they have had a failure. Mine was dead within the first month of running it. I posted about it, Keith replied, but never offered to make it right. I didn't bother pushing the subject any further. If you do a search you can see were I took pictures of the fuel pressure sucking down to zero at WOT with no performance add on. (stock form)

 

[Gypsyman]

I was going to post a link to that thread but I couldn't remember where it was. I've got just an adapter coming from Scotty and the P4601HP Carters I ordered from Summit Racing were about $80 each. This setup will run me less than $130 total.



jm02



Richard

 

[ThomasLawrence]

I've got just an adapter coming from Scotty and the P4601HP Carters I ordered from Summit Racing were about $80 each. This setup will run me less than $130 total.

Wow... so Scotty sent you a free fitting, AND $30? (80+80-30=130) Scotty... . I'll take ten!



-Tom

 

[Gypsyman]

:-laf :-laf :-laf :-laf :-laf



Wise@$$



I wish! I got 2 of the pump so I could carry a spare as I spend a lot of my time in the back country. Funny thing is when the fuel in my tank is cool and the truck has been used for, say, just around town use my pressure holds fine with the stocker. Get it out on the freeway running cross country and after about an hour of running my pressures just start going crazy. 0 to 20 psi spikes, constantly all over the place. I know it's not the gauge because if I clutch it while this is happening and let the truck just coast along at idle down the road the pressures settle down to almost original. The only thing that will really settle it down is when I stop and fill the tank back up with cool fuel. The fuel that is returned to the tank is pretty hot which is good for the rail and pump cooling (obviously pulling heat from those components) but it has to be hard on the puny little lift pump that DC gives us.

 

[Tejasdge]

Here's a wild (and maybe dangerous ) idea. What about an inline oil cooler on the return fuel line to settle your temps down? A punctured cooler would be bad, but not as catastrophic as a oil line failure, unless you had it near an ignition source.

 

[rbattelle]

unless you had it near an ignition source.

Yikes!



Gypsyman,

I'm amazed that the fuel gets hot enough to do such strange things to your pressures. This happens with just the stock system? It would be interesting to mount a temperature sender in the tank to see how warm it gets.

-Ryan