Stock Lift Pump 04.5 Failure Rate?

[MMathewson]

I am curious on the stock lift pump failure rate on the 03-04. 5 when the vehicle is stock. Seems like a fair number of them fail. I'm trying to figure out if I should change pumps to an aftermarket before it fails. Please take the poll.

 

[JCasper]

Mine delivers about 5-7 psi to the cp3 and I am at 69,000 miles.

 

[JHardwick]

Your actually interested in 03-04 failures. In 04. 5 the pump went to the tank.

 

[Smokin Joes 2500]

Your actually interested in 03-04 failures. In 04. 5 the pump went to the tank.

Not so! Spent 3 days on the Phone with FASS, I thoght the pump was in the tank, but it is up on the fuel filter canister like the 03-04. Dan told me 04. 5 and down are that way. Not until 05 did they go to the in tank.



P. S. Mine fried at 58,xxx miles. Too much chip and box for it, I overworked it:-laf

 

[Flyfishing]

I have a '99 CTD box stock engine with external fuel pump. I'm on my fifth fuel pump (139'000) miles. Relocated the fuel pump to the left rear frame closer to the fuel tank. Three pumps failed after the relocation. What year did Dodge go to the in tank pump?

Just purchased a new '07 5. 9L CTD with, as you know, the in tank pump. I'm contemplating putting in a mechanical belt driven pump, GDP or OPIE. In my research regarding these products, they appear to be quite reliable. Carry a spare belt. Also there may be an issue regarding front pump seals and leaks, but it should not leave you stranded. Maybe some others can chime in with their experience. The downside to this aftermarket pump installation seems to be the second fuel pickup tube that needs to be installed in the tank. People are reporting fuel starvation with less than a quarter tank of fuel due to fuel sloshing forward under braking and uncovering the end of the fuel pick up tube, even though the beveled end is at the bottom of the tank. I don't wish to solve one problem and introduce another. If I recall correctly, there seems to be a couple of models of the in-tank pump module. I would like to get hold of a late model in tank pump/module assembly and see if one could mount the pick up tube in such a way as to use the existing baffling to preclude this starvation problem.

It seems to me, in reading these threads and others, that there are very few in-tank fuel pump problems with stock engines. Those with "bombed" engines add the aftermarket pumps to pride the increased fuel flow required of these engines. So we really don't have the data to really know the failure rates of the in-tank pump.

My conclusion is; If you only drive a stock engine truck and don't drive in remote places I think the intank pump will be OK, BUT if you drive in remote place then a secondary pump is wise insurance. Even if it is just plumbed in, but used as a backup. In the last scenario even the 1/4 tank problem would be acceptable. If/when I install my secondary pump I'll most likely use it as the Primary pump and the stock pump would be the backup. Therefore one needs to solve the fuel pick-up problem first. Anyone have a failed late model intank pump module they want to donate for the cause? I'll pay shipping.



The above is just my opinion. I'm not a fluids engineer nor a rocket scientist... But I did stay at a Holiday Inn once.



Regards, Richard

 

[Flyfishing]

As a follow up... My old '99 CTD is a 2wd and I needed a 4wd thats is why I popped for a new 07 5. 9L 4x4. In hindsight I should have bought a earlier model Pre-common rail 4x4. Some of these CTD engines still have the boss and cover plate on the block for the old style engine driven pump that would go for 350,000 miles and then one could easily rebuild it. The problem though, is the cam doesn't have the lobe to drive the pump. There is a company that grinds cams that does have this lobe ( F1 ???) It would have been much less expensive to go this route... But It's cool to have a new truck too.



Richard

 

[Cattletrkr]

My '04. 5 is in the tank... . wasn't there until around 70K though.

 

[Smokin Joes 2500]

My '04. 5 is in the tank... . wasn't there until around 70K though.

Key words "wasnt there"

 

[wyosteve]

My 04. 5 is still on the fuel filter canister.

 

[Bekim]

I am curious on the stock lift pump failure rate on the 03-04. 5 when the vehicle is stock. Seems like a fair number of them fail. I'm trying to figure out if I should change pumps to an aftermarket before it fails. Please take the poll.

If I were under 100,000 I would wait till the warranty expires, then get the GDP system. If it's mounted outside the tank, pulling fuel, instead of pushing it..... it's just a matter of time IMHO. All the warning I got was a little hiccup on the highway about 20 minutes before it died completly just putt putting down the road. No fuel pressure mod..... no hard acceleration... . just normal everyday driving. I could have been in the middle of the desert towing, just as easily. When the motor quits on these beasts, steering and braking become really difficult!
Mike
###


Mine has been in the tank for 60,000 miles now, by the way.

 

[jelag]

As you can see below I own 3 trucks now with a total mileage of about 400K miles... we had 3 lift pump failures on the engine mounted pump... non with the tank mounted pumps... I now have more combined miles on tank mounted pumps with no failures... . and I can assume from what I can tell from the cars that are on the road this is the answer...

 

[JBallou]

Mine is on it's last leg at almost 34k. It delivers 4psi idle cold, 6psi warm at idle and under load with no XZT2, 2-3 psi.

With the XZT2 box on 5psi down the hiway and under near full throttle goes quickly to 0! I think that this is the root cause of my lower that normal boost numbers the last few fuel tanks.



Don't know if I will go with the GDP kit for x-mas or to the intank dealer special.