Engine/Transmission (1998.5 - 2002) Pusher lift pump installed - lift pump demon is slain (hopefully)

[Marco]

Let's see the pic story...

 

[Marco]

It works?... . It works!?!

Hey, wait a minute it WOOOOOOOORKS!!!!!



Thanks Charles!!! I guess I've won the goofy award!



Marco.

 

[Marco]

Ok, let's see if I've learned to post a pic. If I do the thing right you should see the pics of the top of the fuel filter and the Aeroqip fitting on the VP... . Keeping my fingers crossed!

 

[Marco]

Obviously it didn't work completly... Sorry for the multiple MSG's!

Here goes the fuel filter pic.

 

[B. Gill]

C D Day if the noise is excessive there are a couple of things that you can do, what i did is i used 2 of what is called an air cleaner mounting buffer to mount the air box on a 300sd mercedes benz,you can get it from the dealer just tell them that you need air cleaner mounting buffers and if they ask for the year 1983 will do as after that year they changed the air box,it will cost you around $5 each,i got the idea as i have to replace them every couple of years,they are made of very tough rubber and are thick and have treaded bolts on both sides

i dont have any vibration thru the frame at all from the pump.

other is to use just some thick rubber cut it to size and drill holes thru and mount the pump on them

hope this helps

bob

 

[Todd T]

Bob, its not really transfering noise, its just the pumps themselves are buzzing. the braket that come with the new carter pump already has three little rubber isolators on it.



I checked out Andy and Doug's trucks at Muncie. they have a nice kit they have put together. it not only gives you the pusher pump but new lift pump and 3/8 SS Aeroquip between them, out to the filter and then the VP44.



dont know the cost of their kit but the ability to go to one place and order a "kit" is worth alot. not to mention summit and Jegs might "sell" the pumps and fittings but when can they "DELIVER" them is the next question you have to ask.



goto www.smokindiesel.com or call 724-335-6167 or email; -- email address removed --



they both have this setup and use it everyday so it must work.

 

[Steve St.Laurent]

I fixed my FP gauge problem today - see https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=19919 . It's now reading in the regular range of the gauge although the numbers aren't accurate.



-Steve

 

[Steve St.Laurent]

Talked with Doug at Enterprise today and they are going to incorporate the relay setup into their kit. They will be providing the relay, fuse, and a wiring harness all labeled - they'll have the complete kits ready by the 9th of July.



-Steve

 

[CRuD]

Steve

The pusher pump is it a non-positive displacement pump (NPDP). What I mean is it the type that builds up say 10 PSI and then senses the PSI and stops pumping till the PSIs drop. The reason I ask is generators have been using this setup for years to feed the injection pump ( I worked on many of them while in the USMC) Does this pump make a clicking noise alittle while after it starts?? If it does then it more than likly a NPDP

Positive displacment pumps are like out engine oil pump which is gear and moves a set amount of oil somewhere or it will blow up. Non Positive pumps only pump when needed.

I thought your post was great and am thinking of doing what you did. How much did it COST?

See Ya

Chris

 

[David_VT]

Steve (&Enterprise) you have a great one here!

If you keep eating up my tire money with this great ideas, I'll be driving on the rims by snowfall.....







Seriously, BRAVO!!



---

PS: We finally found the culprit with my clutch installation. Nucklehead installer did not tighten the ujoint bolts. Everytime we looked under the truck the transmission was in gear and thus wound up against the loose clamp. A friend drove the truck for 20 feet, jumped out with it running and found the problem.

 

[EMDDIESEL]

I just ordered the kit from Enterprise. They said they are just waiting on the Relays and wire harness which should be done by the end of the week. He said it should ship Friday. The cost was $150. 00 plus shipping. Not a bad deal considering it comes with everything you need.

 

[Shooter]

Ordered my kit today from Enterprise. 12 bits + shipping. will ship next week if they get the relays in by then.

 

[apkole]

lift pump gone bye-bye

Steve, what a timely post. After talking to my dealer about towing performances issues, he performed a re-flash of the computer which he says increases fueling at lower rpm. That was last fall. This spring I headed to Pensacola for some RNR. Saw no serious mountain driving but in moderate hills the truck still felt weak. Thought it was the driver asking too much.



Long story short, had the truck in for a brake problem today, and commented about towing performance again. Feedback from dealer is that they ordered a new lift pump from DC. Seems the factory original is showing about 3 psi. Hmmm, question - - While this unit is under warranty, will I be replacing one of these every 60k mi or so??



Oh yeah, did you make Silver Lake over the 4th? I got up there for the day on the 6th, and watched 4 stoopid young people put the shiney side of a Wrangler in the sand coming off the last hill. Just cuts and bruises, but lots of bent metal and broken roll bar. Rule # 1: Keep the rubber side down

 

[Steve St.Laurent]

apkole, all I can tell you is that I replaced mine 4 times in less than 50,000 miles (I bought my truck used with 24,000 miles on it and drove on a bad lift pump for nearly 18,000 miles). I'm currently taking a poll on the GLTDR and SETDR sites to put into a letter than I'm writing to D/C and Cummins. Here's the results so far (in parenthesis is the model year of the truck):



1 hasn't replaced his pump after 7,600 miles (2001. 5)

1 hasn't replaced his pump after 21,000 miles (2000)



The rest of these are ALL replacements

--------------------------------------------------

2 in 25,000 miles (2001)

1 in 32,000 (1999)

1 in 17,000 (2001)

1 in 34,000 (2000)

4 in 80,000 (1998. 5)

2 in 54,000 (2001)

1 in 47,000 (1999)

1 in 39,500 (2000)

1 in 33,000 (2000)

1 in 16,000 (1999)

1 in 36,000 (2001)

1 in 36,000 (1999)



Not very good odds is it? Pretty terrifying if you ask me! I'm going to wait a few more days and then compile a list to put into my letter along with percentages. The lesson I've taken from this is it's ABSOLUTELY 100% necessary to have a full time fuel pressure gauge on ANY 24v engine!!



I didn't make it to the dunes on the 4th, just didn't have time this year - I'll be there labor day weekend for sure. I've seen many trucks endo over that last hill over the years (including a friend of mine once). I don't know what the conditions were that weekend but there are times when it would be pretty easy to do. I've dropped my tires on the back side of some of the hills a few times and if the conditions had been just right I would have endo'd! Maybe I'll see you there labor day weekend.



-Steve

 

[EMDDIESEL]

In regards to the install of the Enterprise "Pusher Pump" kit. I was talking to Andy today at www.smokindiesel.com and he said when they cut the fuel line to install the pump they get soaked with Diesel fuel and that the fuel will siphon out of the tank all over the place. He reccomended taking the fitting off the stock pump and blowing air into the line to force the fuel back into the tank. While it sounds like that would solve the problem, i would rather not mess anything in the engine compartment. Did anybody who installed this kit have a similar problem? and if so, how did you solve it?. The only idea i can think of is have the rubber hose to the pusher pump ready to slide on to the cut stock fuel line and have the rubber hose squeezed shut with a clamp. Doe sthis sound ok? or is there another trick??

 

[Bigsaint]

EMDDIESEL, that will work. I took a spare piece of 3/8" rubber line and plugged the end with a bolt. I keep it in my truck's tool box so that, if I have to make any road side repairs, I can just remove the braided line which is attached to the fuel tank hardline, and plug the end with the rubber hose until I'm ready to hook it back up.



Scott W.

 

[Steve St.Laurent]

I just had the tank approximately half full (the lower the better). Then pulled the hard line from the clip that holds it to the frame near the front of the tank. I then cut the line with a pipe cutter, then lifted the line up until the fuel stopped flowing and held it there for a few seconds (basically above the level of the fuel in the tank) - that made it drain back into the tank and stopped the siphoning. I also put a drain pan under the spot where I was going to cut before getting started. You'll get a little diesel on you but no more than when changing the stock lift pump out.



-Steve



P. S. BTW, I'm still seeing no less than 18 psi at WOT - WOOHOOO!

 

[Doc Tinker]

Have you guys checked your fuel pressure with your fueling boxes disconnected? My pump tested 8#@idle with the Torque Dog. It's 10#@idle without the Torque Dog. 10#@idle is Cummins minimum specs.



Doc

 

[Riflesmith]

I just wanted to thank you Steve. I ordered my pusher lift pump kit from enterprise this afternoon. Even though the injection pump is under warranty, I wouldn't let anyone but me touch my truck to replace it. Changing out the injection pump looks much more complicated than adding the Carter pump. Better to try and get a good, long life from the injection pump I have.

 

[John Berger]

Good point Doc

I had my EZ box off of the truck for a couple of days this week and I noticed a gain of 1-2 psi from both sides at idle and at cruising speed. I never really nailed it, because I didn't take the boost elbow off, but the pressure drop under hard acceleration was considerably slower than with the EZ on. I might get some flak for this, but based upon the extensive R&D Bill K and Mopar muscle did this past spring, that really doesn't surprise me, especially since the fueling boxes add more fuel. There should be a pressure drop with higher flow. But the original point is still valid, the boxes are making a difference, at least with my truck.