I ran a Holley Blue for just about 30,000 Kilometers mounted on my frame mount [no drilling] with no problems. I am currently testing a custom pump and so far so good. I can dial it in to whatever pressure I want. Everything my kit has is bolt on.

Scotty

 

Not sure what they're worth but I'm thinking of carrying a spare too. They're not hard to change. The pump is before the filter, sucks straight out of the tank and discharges into the filter.

 

In you guys' opinion, what do you think is the best scenario?

a) Go ahead and purchase an aftermarket lift pump and install it now before the stock one goes? I've heard of the lift pump killing the injector pump when it does out... (is that right?). I guess if this is the choice, what lift pump should I look at?

b) Wait and see if it dies, and let the dealer take care of it

c) Don't buy an aftermarket lift pump until just before the 100K warranty goes out

Any input would be appreciated - thanks....

 

From the sounds of it, we won't make 100,000 miles without a pump change. I guess the supports the theory of having a lift pump gauge so you can predict the problem before it happens, right Scotty.

 

That is exactly what I thought which makes me wonder why the dealers makes such a stink about the filter changes. My dealer layed down the law about having to change the filter every 24,000 kms and I had to have proof like a dealer or Cummins invoice to proove it was done. I just do it myself keep my Fleetgaurd reciepts and a log book, hopefully thatwill do. Any thoughts?

 

Ya that's all we do too. Keep receipts and mileage of when it was changed and do it ourselves. They know it's a problem and they shouldn't give too much trouble. I asked if there was anything I could do to keep them going long and the answer was nothing. Even changing the filter more often won't help he said. Towing or regular driving, it shouldn't matter.

 

Guys you really have me concerned now. I've been away from this forum for quite some time now so am just tuning into this issue. I have over 32000km on mine now and so far no problem. I have a fiver and would be really ticked if it failed somewhere in the middle of nowhere or on a vacation.

Thanks for the heads up. I may call my service manager to see what his advice is.

 

Trucks been in the shop for 2 weeks now!! Called and the dealer still cannot get a lift pump because it's on back order. This is a new designed pump so hopefully it will last longer. I never did get stranded, the check engine light came on both times and I could tell the truck had loss power.

I dont mind waiting cause dont need the truck but if I had some camping trips already schedule I would be rude with them.

 

I guess I'm lucky. My truck was towed to local dealer late Sat. night with a dead lift pump, and it was done by 10:30 this morning when I called. They told my wife when she picked up the keys they try to keep at least one in stock...".

 

As far as the two low kit goes. It wont work on any truck from 2002 on up. No Cad to disconect.

 

Mike0: Do you have the part number of the one that was installed?

 

can someone explain the differance between a fuel pump a lift pump and a vpp44 or an injector pump????


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Ok, here is the new lift pump part number. At least I hope it's the new designed one!!

5093135-AB, truck was in shop from 2/2/05 til 2/16/05. Hopefully no more problems with this truck, although it did sound kinda different.

 

98.5 to 02 Rams had the VP-44 Injector Pump with a stand alone lift or transfer pump as some folks call it.

The lift pump provides fuel to the injector pump. If it gets weak on the VP-44 trucks, it can also create more stress and heat on the VP-44. That pump is cooled and lubricated by fuel.
Low fuel pressures will lead to failed injectors pumps more often then not. Keeping an eye on the fuel pressure can save you downtime and money. The fuel systems on these trucks are VERY restrictive with the tiny orifces and bottlenecks throughout the system. I have proven with my kits that opening up the lines and getting rid of the banjo bolts but not using the weber fittings is going to give your lift pump and injector pump healthy fuel pressures.

On the 03--04.5 Ram the lift pump is even smaller then the earlier trucks and attaches to the side of the filter housing...mine showed 0 pressure at wide open throttle in a stock truck.
Some folks claim you can run without the lift pump and just let the CP3 injector pump suck the fuel to it. No. Some folks say a fuel pressure gauge is not needed on the 3rd gen trucks. I do not agree with this. If adding even a small amount of power pulls the pressure to a negative reading, I think we need to know this and prevent parking at the side of the road with early warning of the low pressures. Opening up the lines on the 3rd gens helps a lot too.
The CP3 is a high pressure injector pump that pushes fuel to the injectors.

I found out from my dealer today that they have their first 05 with in tank factory pusher pump in for a failed supply pump as they called it. Number of kilometers on the 05, 3700. Poor fuel quality in Canada plays a big roll in these failures too. Fuel pressure on the 05...ZERO and pump was running...truck kept stalling.

Hope this made sense.

Scotty

 

Never had a fuel starvation problem with the 12v's or this one (24v) while it was running.

But every time I dumped the fuel/water sep, I couldn't re-prime the filter, no matter how many times I'd key it. Each time I ended up having crank it a dozen times, then bleed valves 1, 3 & 5. Finally, in frustration, I had a mechanic put a pressure gauge on it = ZERO pressure. Replaced it at the dealer. Gauge now says = 12.5#. Hopefully, this solves the problem.

Anyone pay more than $350 for one?