HI.


99 Dodge3500 dualie Quad cab 5 sp 4.10 gear. Motor is stock 105k showing. I've had it 6 months and driven 20k but haven't pulled a trailer that amounted to anything. The truck runs fantastic and really gets with the program when you step on it. There is no hesitation just a sec or so for the turbo to spool up. A bit noisy but no more that any others of this vintage.


problem:


I just got a Gale banks lift pump tester which is a low pressure gage and hose and two Schrader valves with 1/8 pipe fittings on them You remove the 2 pipe plugs in the top of the fuel filter housing and add the 2 Schrader valve fittings. Then connect the hose and gage assembly.


I get -0- pressure on either fitting and no fuel out of either. Additionally if I push the valve down on the inner fitting which is the outlet side of the filter (to the injector pump) the motor drops about 200-300 rpm.


The truck runs just fine and gets 19-20 for most of my driving which is hyw at 62-65. 4.10 gear.


Is my lift pump totally shot??? I hope not as I've been driving this for 20k with no problem what so ever.


I have a call into Banks but won't hear from them untill Monday.


whats up????


bentwings

I would wait before driving it much more to find out for sure. If your lift pump has failed it doesn't take long before injector pump goes away either. Those pumps are not designed to operate at a vacuum and you'll be on the hook for a 4K tab for the injector pump.http://www.dieselplace.com/forum/smileys/Thumbs Down.gif

http://www.dieselplace.com/forum/smileys/Big Smile.gif HI, Finally I've had automotive success after a month of failures!!! I got a new Cummins lift pump yesterday at the local diesel shop. 185 bucks. I probably could have done a bit better but this was in my very neighborhood so with travel shipping etc it was ok.
This one has year warantee unlimited miles. I told the mgr to make sure he had one in May of next year!! LOL He said he would.
Idle pressure is 14 psi inlet http://www.dieselplace.com/forum/smileys/Approve.gif
13 psi at the filter outlet should be fine I think.
Here is how I installed it.:
tools:
7/16 ratchet wrench or 7/16 combination wrench
10mm ratchet wrench
11/16 or 17 mm x 3/8 socket
short 3/8 ratchet
long flop head ratchet optional
optional long 3/8 extension +3 inch extension both with wobble end


how to do it:
disconnect wire on pump
open clip on engine dip stick and move the tube over a bit
remove inlet line bracket bolt
loosen 3 pump bracket bolts loosen inlet line banjo fitting
loosen outlet banjo fitting at the top of the filter and at pump
remove 3 pump bracket nuts and washers
remove inlet banjo fitting and washers
remove filter banjo bolt and washers
lower pump away from bracket and lift out. carefull of dirt in the fittings
transfer outlet line from old pump to the new pump careful of washers
leave slightly loose 1/6 turn
install new pump with 2 studs closest to the block
install 2 nuts and washers and tighten
tighten outlet line banjo fittings
install inlet banjo. becarefull of washers and dirt leave loose
rotate inlet line bracket over hole in pump bracket
install bracket bolt
tighten inlet banjo fitting, tighten bracket bolt
install new wire harness (if needed)
install wire harness bracket and tighten 3rd pump nut and washer
reclip the motor dip stick tube
your are done ...easy huh.


ok you need to prime the pump and filter
I installed my pressure gage without the gage and submerged the open end in diesel fuel
turn on the key to on for 30 seconds. this is as long as the lift pump will run turn the key off
wait about 1 minute and repeat
you should have seen a few bubbles this means the pump ran
I pulled the line and closed the filter up
start the motor..it may knock like h..l for a few seconds..normal
the idle will be 200 rpm low for about 1 minute as it purges the air out of the system
turn the motor off and plug in your gages
start it up and check the inlet pressure 10-15 is ok I guess
check outlet..you should have less than 4 psi drop. more replace the filter
Take it for a test drive and kick some a....
flat rate is only about .8 on this and probably is about right
all of the pump bolts on mine had heavy loctite on them and backed out of the pump instead of the nuts coming off. It took a lot of wrenching and swearing around to finally get the studs out of the pump and off the bracket.
the book says you need to remove the starter but the local diesel mech put me on to this. He had 8 of them to do this week.
oh yeah. If you have a big brush guard do yourself a favor and cut a board about 1 foot x 2 feet and lay it across the guard and the radiator. It is much easier on the knees.
I have another story about what was inside the old pump but I'll post that later <IMG onMouseOver="this.style.curso