Engine/Transmission (1998.5 - 2002) Who has had Lift Pump failures?????

[sdalton]

I am curious about how many have had lift pump failures, and whether they are attributed to the fueling boxes being added, injectors being added, or just Pi$$ poor design. Also at what milage did they fail. List milage below, unless you are worried about Big Brother watching.



Scott





No failure for me. No additions, and over 40,000 miles

 

[TomGolden]

Scott,



I put injectors and EZ on at 12K miles. Traded EZ for Comp at ~30K miles. Added fuel pressure gauge at 44K miles, and lift pump was dead. Replaced it myself, after Brandon taught me how to do it.



I very seriously doubt any injectors or fueling boxes have squat to do with these lift pump failures, my gut feel is it's just a weak design. After all, no one that I have yet heard of has even been able to find an aftermarket fuel pump that will last for 6 months, so there is just some inherent flaw in fuel pumps when used on our size diesel engines... .



Tom

 

[78repowerwagon]

Lost first lift pump at 70K, second lp is still on with 125K on truck.

 

[sdalton]

What kind of warranty are on the pumps???? 3/36k or 5/100k ????

 

[sdalton]

For people with failures without anything added, at how many miles did it fail??

 

[Bigsaint]

My first BOMB was the EZ box, which I added after gauges ( with the exception of the FP gauges ). We weren't as concerned with FP back then in the fall of 2000. I had a real bad stumble once, lost all power and had to pull over for a few seconds before it recovered. Right after that the truck went to Auto Wurks for larger injectors, blah, blah, blah. I asked Mike to check my FP and he found the original pump to be pushing around 5-6 at idle and 0 at near WOT ( snowy roads). While I don't believe the EZ contributed to the lift pumps failure, I'm sure the slightly increased fueling demand, coupled with the pumps poor location, brought on the stumble. This was with a whopping 2200 miles on the truck.



I had Mike install a Mallory 4150, back by the tank and remove the Carter pump. The first Mallory lasted about 4 months. I bought another and replaced the first, which lasted 8 months. After the 2nd Mallory died, I replaced it with the first one, which was repaired by Mallory and it started to show signs of failure after only 3 months. I got disgusted with constantly having to change pumps and decided to try something un-tested, which is working great to date, but it's way to early to start bragging about it yet.



The best set up that I know of too date is Chris Suttons. He is using and an Aeromotive pump with a return regulator and has a bung punched in the bottom of his fuel tank for a true gravity feed. Has lasted for over a year now, I believe.



I'm with Tom on the lift pump theory, seriously doubt fueling boxes and/or injectors have a whole lot to due with the pumps death. I think the pumps original location, on the block way foward of the fuel tank is the biggest problem. It would be real interesting to post a poll to members that have located a stock Carter pump back by the tank, without a pusher pump, just one of the latest and greatest from Cummins, and see if anyone has seen a failure with this setup. I still believe that there is a pump out there that can handle our needs and last, without the need for a return regulator and a true gravity feed, that's why I'm trying the PE pump right now. As always, time will tell.



Scott W.

 

[jtisdale]

Mine died at 14400 stock.

 

[jtisdale]

Mine died at 14400 stock.

Has anybody looked into using the fuel delivery system off a 12 valve set-up?

 

[Irontrader]

I'm on my 3rd lift pump, but didn't vote as you had no choice for people with injectors changed but no fueling box.



My first lift pump supposedly failed (I didn't have a pressure guage) along with the injection pump and was replaced by DC.



I recently replaced the lift pump myself (I now have a pressure guage) after reading about the higher pressures that the stock replacement pumps were putting out compared to what I was getting.

 

[mikel]

I checked the pressure at 19k and it would drop to 4-5psi on a long WOT run so I replaced it. The first BOMB I do to my truck is going to be a low pressure pusher pump on the frame rail near the tank. I have the pump, now all I need is the time to get it installed.



I have about 800 miles on the new (from cummins not $$dodge) lift pump. Hope it can hold up for a few hundred more till I get time to install the pusher





Later,

Mike

 

[jtisdale]

Different pumps?

Took my truck to the dealer on Monday to get the pump replaced. 0 psi at idle. Truck started, idled and ran fine. They were somewhat busy this week with 4th of July and a few of their mechanics were on vacation. I kinda needed it this week, but what do you do? Its under warranty. Let them fix it and I find another truck to use, no big deal. Should be done by Wed eve. Nope. Probably Friday. Not yet. The service manager tells me they have to check the pressure with their gauge. Thats ok too. Then they call STAR and tell them whats going on. Star has to authorize a pump replacement, and then they have to send one out to the dealership to put on. He says STAR wont even let them stock one of these pumps. But he also said if it was out of warranty, they could just take one (of the pumps they do stock) off the shelf and put it on. What gives? Anybody else heard this?? I am guessing it wont be done now till next week. This is an excellent dealership, and they treat me well. I'm glad this didnt happen on vacation somewhere. I would be stuck for days!

 

[Pit Bull]

Re: Different pumps?

Originally posted by jtisdale

Took my truck to the dealer on Monday to get the pump replaced. 0 psi at idle. Truck started, idled and ran fine. They were somewhat busy this week with 4th of July and a few of their mechanics were on vacation. I kinda needed it this week, but what do you do? Its under warranty. Let them fix it and I find another truck to use, no big deal. Should be done by Wed eve. Nope. Probably Friday. Not yet. The service manager tells me they have to check the pressure with their gauge. Thats ok too. Then they call STAR and tell them whats going on. Star has to authorize a pump replacement, and then they have to send one out to the dealership to put on. He says STAR wont even let them stock one of these pumps. But he also said if it was out of warranty, they could just take one (of the pumps they do stock) off the shelf and put it on. What gives? Anybody else heard this?? I am guessing it wont be done now till next week. This is an excellent dealership, and they treat me well. I'm glad this didnt happen on vacation somewhere. I would be stuck for days!

That's BS. Call the Star line yourself. When mine went out a couple of months ago, I called on a Monday and took it in Tuesday morning, it was done in 40 minutes and I was on my way.

 

[jtisdale]

Thats what I thought myself. The last time I was in there getting a new headliner put in, one truck that was getting routine service done was found to have a bad pump, and one rolled in off the street with a bad pump. Both were gone before I was. I KNOW both of those trucks were covered under warranty.

 

[speedracer]

Pump replaced at 37k, no fueling box or injectors. It hadn't completely failed, but was down to 5 psi WOT above 2000 rpm, so I had it replaced under warranty. I asked before I took the truck in if they had one in stock, they did so I left it about 10am and picked it up a little after noon.

 

[jtisdale]

I think I am gettting hosed.

 

[3dracer]

The guy at my dealership told me that they would only release the new part #'s to people with warranty. I had to wait 2 days for the shipping on mine. THat was thru star. No mod's and mine was out when I bought mine used. I put the gauges on at about 50,000 miles. So I really don't know when it went out. My Dealership just used my gauge as a test. NEVER did they put one on to test it. Was well pleased.

 

[Steve St.Laurent]

My first lift pump was dead at 28,000 miles (I bought it used with 24,000 on it so I have no clue how long it was bad - hadn't checked it) on a completely stock truck, went through 3 more getting to 60,000 miles running various upgrades. Been running a dual carter lift pump setup since then (45,000 miles now) with no failures. Since my first one failed on a completely stock truck I answered "Failure without anything added"

 

[LarryG]

This is how I read the results of the poll: Better bomb it before it breaks!

 

[Cliffman]

Original lift pump failed at 45k. Installed helper pump at 60k. I'm now at 80k and FP has not dropped at all.

 

[GTX]

First one died at 35k, second died at 49k. Now at 64k the third one is going, FP is starting to fluctuate. The truck is also on the same amount of injection pumps.