It's 10pm - where's your lift pump?

gmctd · **Posted:** Wed May 07, 2008 11:40 pm

That's correct on the t-case shifting - vehicle is supposed to be moving forward until shift is completed - sometimes it will shift stopped, but when moving forward the driveline will pop hard\loud, jerk the whole vehicle, feels\sounds like something broke

Good job on the lp module install then - the project needed someone to compare the modules - I posted to buy a module or several on the Cummins forums for that purpose, but got only one partial response for a '04, which is different, but he never responded when I offered half the going 150buck new rate, for 100 incl shipping - some peoples children!!!!

crdjon · **Posted:** Thu May 08, 2008 4:05 am

Joe,
Dont forget to tell us how the KJ goes now with the new pump installed

Additional impressions since completing mine.

Basically I feel there was a bit of retuning or adaptation occured after I installed it (both me and the KJ), I dont need to put the foot down as far and it pulls really well and I think the ECM and or TCM may have adapted as the transmission as it is shifting differently, albeit still too high and not hooking up as I would like.

Fuel wise, before/after intank comparison:-
I have been doing the shift to neutral at the lights for a couple of months and after the in tank pump install seems to indicate a slight increase in fuel consumption in neutral and by a portion more if left in drive at the lights than it used to, heres the good part, when cruising the KJ seems to have dropped by at least 1 litre (probably more) per hour at 110 kilometres an hour (66mph).

We are at $1.70 AUD per litre for diesel at the moment so whatever is going on I like it.

Any ideas on this anyone?

Joe Romas · **Posted:** Thu May 08, 2008 6:25 am

BlackLibertyCRD wrote:

Joe Romas wrote:

When going from full time to 2 wheel it stays in part time forever unless it's driven in part time for a few hundred feet then it goes to 2 wheel :roll:

I'm going insist they drive it with me in the car so they can't say "unable to duplicate" :wink:

Joe, I believe you supposed to change from full time to part time to 2 wheel while driving forward on the fly and th same the other way. My 98 Durango worked the same way and never a problem.

I think so too and there's nothing indicating otherwise in the manual. When shifting from full to two the lever is "springy" when passing through part time to two leading me to suspect there's a problem :roll:

Going from two to full time it seems to work properly though :wink:

dieselenthusiast · **Posted:** Sun May 18, 2008 9:17 pm

Is everyone happy with the Cummins lift pump install? From all the lift pumps on the market, does this seem to be the best application for the CRD?

bugnout · **Posted:** Sun May 18, 2008 9:25 pm

I sure like mine. returned it to the vehicle I originally bought, maybe a little better. fairly easy installation and mopar parts.

Ripster · **Posted:** Sun May 18, 2008 9:44 pm

Read through the posts, considerable photos, reviews and updates. To date I would do it again, love how it is
a stealth mod and no one can tell. Helps with the overall vehicle response and starting. Not to mention how
easy it is to prime the fuel filter. Many have done the research, you just have to review the posts.

fastRob · **Posted:** Sun May 18, 2008 9:51 pm

dieselenthusiast wrote:

Is everyone happy with the Cummins lift pump install? From all the lift pumps on the market, does this seem to be the best application for the CRD?

The pump is not noticable.
No 50-60 mph stuttering, easy starts, no air in filter.
Thanks Gmctd for the work you did.

crdjon · **Posted:** Sun May 18, 2008 10:49 pm

dieselenthusiast wrote:

Is everyone happy with the Cummins lift pump install? From all the lift pumps on the market, does this seem to be the best application for the CRD?

You bet, this has made far more improvement than I had planned for, thanks to GMCTD.

dieselenthusiast · **Posted:** Sun May 18, 2008 10:50 pm

Ripster wrote:

Read through the posts, considerable photos, reviews and updates. To date I would do it again, love how it is
a stealth mod and no one can tell. Helps with the overall vehicle response and starting. Not to mention how
easy it is to prime the fuel filter. Many have done the research, you just have to review the posts.

Trust me, I spent the better part of my afternoon reading through all 30 pages. I really think this should be a sticky.

Joe Romas · **Posted:** Tue May 20, 2008 7:32 pm

dieselenthusiast wrote:

Is everyone happy with the Cummins lift pump install? From all the lift pumps on the market, does this seem to be the best application for the CRD?

After blacklibertycrd did his facet install I did the same minus the vent as a test. It ran like it should have ran from day one :lol:

The test was a success

After reading all the posts about the fuel guage and the cummins pump I desided to modify the flange on the dodge pump to mount correctly :wink:

After carefully looking at the new pump on the tank it was clear that if the right half of the locating tab as viewed from the top was cut off it would mount perfectly. There's a line in the center that if extended outwards it's exactly in the center of the tab. A hacksaw works for the stright line. The second line must be cut in the same radius as the rest of the circle. A coping saw works fine for that, just be carefull not to cut off too much or it won't seal. Then tightining the retainer ring assures the pump is where it belongs. So far my fuel guage works just like it did. At 150 miles it was on 3/4 and it looks like 1/2 is going to be about 250 miles and as near as I remember that's how it read before. When I installed the pump it had one line over E just lake the old one did :lol:

dieselenthusiast · **Posted:** Tue May 20, 2008 7:44 pm

Joe Romas wrote:

dieselenthusiast wrote:

Is everyone happy with the Cummins lift pump install? From all the lift pumps on the market, does this seem to be the best application for the CRD?

After blacklibertycrd did his facet install I did the same minus the vent as a test. It ran like it should have ran from day one :lol:

The test was a success

After reading all the posts about the fuel guage and the cummins pump I desided to modify the flange on the dodge pump to mount correctly :wink:

After carefully looking at the new pump on the tank it was clear that if the right half of the locating tab as viewed from the top was cut off it would mount perfectly. There's a line in the center that if extended outwards it's exactly in the center of the tab. A hacksaw works for the stright line. The second line must be cut in the same radius as the rest of the circle. A coping saw works fine for that, just be carefull not to cut off too much or it won't seal. Then tightining the retainer ring assures the pump is where it belongs. So far my fuel guage works just like it did. At 150 miles it was on 3/4 and it looks like 1/2 is going to be about 250 miles and as near as I remember that's how it read before. When I installed the pump it had one line over E just lake the old one did :lol:

It’s funny, the Dodge Cummins gurus are getting rid of there factory lift pumps and swamping for aftermarket lift pumps. In addition, some are changing their factory CP3 for an aftermarket CP3. The Cummins lift pumps are not a “high” quality lift pump according to many who have them. The Carter lift pump is suppose to be much better. I’m in the process of contacting FASS to see how it would work on the CRD. They are looking to detune the gallons per hour rate. Anyway, FASS does offer a lifetime guarantee and a air/water separator. I will update as soon as I find out!

.

warp2diesel · **Posted:** Tue May 20, 2008 9:47 pm

..the Dodge lift pumps form those Cummins people who want to upgrade to FASS.
The Cummins engine is a very strong engine that some have jacked them to over 1000 HP with out breaking cranks or rods. Lets face it the stock lift pump can't put out that much fuel but FASS can and handle the way beyond stock horse power demands. For those Dodge/Cummins people who want more than stock but not quite 1000 HP, FASS offers options for them as well.

Do you plan to up the Horse Power of your CRD engine beyond the Horse Power of the Stock Dodge/Cummins? If not the Lift Pump options including the Cummins pump should handle your needs. FASS will take your money as would any other after market supplier.

Good Luck,

Steve

dieselenthusiast · **Posted:** Wed May 21, 2008 12:27 am

warp2diesel wrote:

..the Dodge lift pumps form those Cummins people who want to upgrade to FASS.
The Cummins engine is a very strong engine that some have jacked them to over 1000 HP with out breaking cranks or rods. Lets face it the stock lift pump can't put out that much fuel but FASS can and handle the way beyond stock horse power demands. For those Dodge/Cummins people who want more than stock but not quite 1000 HP, FASS offers options for them as well.

Do you plan to up the Horse Power of your CRD engine beyond the Horse Power of the Stock Dodge/Cummins? If not the Lift Pump options including the Cummins pump should handle your needs. FASS will take your money as would any other after market supplier.

Good Luck,

Steve

As we’ve seen with the CRD, any factory diesel can benefit from a more quality lift pump and fuel/air separator. I’m looking for a good quality lift pump that is less prone to fail. I also like the fuel/air separator that comes with the FASS lift pump. I think the FASS (as a complete kit and lifetime warranty) will be more reliable, more efficient, and will save the injectors in the long run. Even under factory settings, the fuel/air separator will eliminate power-robbing air from the diesel fuel. I want a more efficient engine that will result in more horsepower and fuel economy while reducing the effects of hot fuel. Like the Cummins lift pump, the FASS will increase engine startup, provide for a smoother idle, and will provide a much quicker throttle response. The system will be better for cold weather performance, plus the water separator includes a fuel heater. The extended fuel filter is efficient down to 10 micron filtration. The entire system will reduce black smoke reductions in NOX and Carbon Monoxide. Over all, it’s a better system. The downside is that the FASS will require a lot of room and custom fabrication to make it work. And who knows, by the time it’s all said and done, the Cummins lift pump may have to suffice for my application. I might have to go with a separate fuel/air system in addition to a lift pump. I dream big. :idea:

dieselenthusiast · **Posted:** Wed May 21, 2008 12:38 am

gmctd · **Posted:** Wed May 21, 2008 8:25 am

FASS is for 18-wheelers - AIRDOG, same company, is for pick'em-ups................

maxxgraphix · **Joined:** Wed Mar 26, 2008 8:11 am **Posts:** 53

Let's petition DC for a recall to get lift pumps installed. Ours is starting to act funky at idle. I checked the primer and it's soft. So that means there are air bubbles in the system?

Joe Romas · **Posted:** Wed May 21, 2008 12:54 pm

maxxgraphix wrote:

Let's petition DC for a recall to get lift pumps installed. Ours is starting to act funky at idle. I checked the primer and it's soft. So that means there are air bubbles in the system?

We tried that on the fuel heater plugs melting. It got a investigation by the NTHSA but it got sluffed off :lol:

However if you were to convince them that it would get you into traffic and then loose power unexectably getting you run over it might work :shock:

That was one of my problems and it was totally unpredictable when it would happen. The worst was pulling out of a gas station after refueling on a hot 90 degree day. Once after refueling it ran like it does now with a lift pump.

I've lost hope in Chrysler doing anything for our CRD's. But I'll keep my old fuel pickup just in case a recall occures :roll:

dieselenthusiast · **Posted:** Wed May 21, 2008 1:17 pm

gmctd wrote:

FASS is for 18-wheelers - AIRDOG, same company, is for pick'em-ups................

FASS also makes a custom fit specifically for the Dodge Cummins, Chevy Duramax, and Ford Powerstroke.

Here's what FASS has to say, "I talked to Dan at FASS. They have done no kits specific to the CRD BUT he says it’s no problem to turn down the pressure for you on one of their pumps. He suggested that the Dodge mounting kit might be the best set-up to try on the wrangler."

We're doing a CRD install in a JK, so this will be the setup I use if DieselToyz can make it work.

gmctd · **Posted:** Wed May 21, 2008 3:59 pm

Again - FASS is for 18-wheelers, which means VOLUME as well as pressure - AIRDOG is same concept, sized for pickups

Dan invented FASS for 18-wheelers, sold the company - he designed the AIRDOG for pickups, then son bought FASS back, so now they own both companies

Point being, if you want to try to find real-estate to settle that chunk of iron into, good luck - if you want the same thing in smaller package, AIRDOG removes air samo samo FASS, 'cause same guy designed 'em both

dieselenthusiast · **Posted:** Wed May 21, 2008 11:03 pm

gmctd wrote:

Again - FASS is for 18-wheelers, which means VOLUME as well as pressure - AIRDOG is same concept, sized for pickups

Dan invented FASS for 18-wheelers, sold the company - he designed the AIRDOG for pickups, then son bought FASS back, so now they own both companies

Point being, if you want to try to find real-estate to settle that chunk of iron into, good luck - if you want the same thing in smaller package, AIRDOG removes air samo samo FASS, 'cause same guy designed 'em both

Dan is the Son who owns FASS and his Dad is the owner of AIRDOG. AIRDOG has a larger focus for the 18 wheelers, whereas Dan (FASS) focuses and advertises heavily on the pickup truck market. The Father and Son own and operate two separate companies and in no way work together. Dan at FASS said he will turn down the flow and PSI so I can strictly use it for the CRD. As a matter of fact, he customizes for small diesel engines all the time. He suggested that we use the Dodge Cummins FASS kit for my application. Todd at DieselToyz said it will not be a problem installing the FASS complete kit. Todd also supports my idea of using the FASS. A lifetime pump is hard to beat and the FASS fuel/air separator is the way to go. Although, most everyone would agree that FASS and AIRDOG are identical pumps. My buddy who owns Diesel Power Products http://dieselpowerproducts.com/Home_Page.php
happens to be a dealer for FASS. A dealer can not carry both FASS and AIRDOG.

It's 10pm - where's your lift pump?

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