I need HELP ASAP!!!!!!

MnDLawn · 11-02-2009, 11:04 PM

I was towing our excavator, around 12k, and all of a sudden the truck started to surge under load. As long as I kept it under 1600 rpm it ran fine, as soon as I went over 1600 rpm it would start surging. After I got it home I noticed that the lift pump was not running. So I ordered an AirDog hoping that that will fix the surging. Am I on the right track? Also, their were no codes. Any other ideas?

__________________

2000, 2500, 24v, NV4500, NP241DHD, BHAF, BD Wastegate, Quadzilla Boost Fooler, AirDog 150, Dana 80. Started Life As A Gasser

dodgediesel59 · 11-02-2009, 11:11 PM

It is very possible the VP was running empty on fuel. Its hard to say if it will live or die, but the aftermarket lift pump is needed anyways. All you can do is put the pump in and hope for the best.

__________________
Robert
2001 2500 ex cab long box. flat bed with dual 5" stacks 4 gauge pillar with boost, egt, fuel press, and trans,billet auto,quadzilla xzt+, Fass 150, 125HP injectors,4.10s bfaf

caleb · 11-02-2009, 11:13 PM

check for a code one more time.... sounds to me like the pump is starting to go out

__________________
01 24 valve 5spd QC/SB 2wd....soon to have stg2 monster pump/hurricane stg2 injectors,smarty s-03 w revo,juice w attitude w hot unlock, 5" exhaust ,silver bullet,fass 150 and south bend 750

grazmo · 11-02-2009, 11:14 PM

fuel pressure guage is a good idea to so you can tell if your lift pump is doing its job

__________________

01 CTD QC Short Bed, 5" Exhaust into 5" Flat Black Stack, Juice w Attitude stacked w Smarty, BHAF, Raptor 100, ATS stage 2 trans, ATS 5 Star TC, Aurora 4000

, Stage 5 Jammers

MnDLawn · 11-02-2009, 11:27 PM

I have a fuel pressure gauge, but it as one of the cheap a$$ glowshift ones and it bounces all over creation. I'm just hoping the VP was running out of fuel, I run 2 stroke in it so I hope that saved it.

__________________

2000, 2500, 24v, NV4500, NP241DHD, BHAF, BD Wastegate, Quadzilla Boost Fooler, AirDog 150, Dana 80. Started Life As A Gasser

dariddell · 11-02-2009, 11:28 PM

i hope it lives good luck man

__________________
2001 24-valve, Fass 150, Edge W/attitude w/hot code, aurora 3000, 100hp sticks, BD converter, lock up switch, BD pressure loc, billet output shaft, custom clutches, ats valve body, 5 inch stacks, american racing rims, afe intake, and some other stuff!

Jimbowe · 11-02-2009, 11:34 PM

Quote:

Originally Posted by MnDLawn

I have a fuel pressure gauge, but it as one of the cheap a$$ glowshift ones and it bounces all over creation. I'm just hoping the VP was running out of fuel, I run 2 stroke in it so I hope that saved it.

You may need a needle valve or snubber (if the gauge is electric) to make it read steady. the fluctuation is most likely caused by the water hammer effect from the VP44.

__________________
98.5 3500 dually 4X4, BHAF, 14mm turbo exh, B&D exh man, 80hp edge inj, FASS 95, PowerMax, CoPilot, PacBrake, TripleLock LS converter, HP VB, MagHytec DD Tran pan, 2nd Tran cooler with fan, 3.55 gears, MBRP 4" exh, 93 gal aux fuel.

MnDLawn · 11-06-2009, 09:49 PM

Put the Airdog 150 on and the truck still surges, but not as bad. Any other tips?

__________________

2000, 2500, 24v, NV4500, NP241DHD, BHAF, BD Wastegate, Quadzilla Boost Fooler, AirDog 150, Dana 80. Started Life As A Gasser

Dracozny · 11-06-2009, 10:04 PM

Quote:

Originally Posted by MnDLawn

Put the Airdog 150 on and the truck still surges, but not as bad. Any other tips?

i think you know the dreaded answer were going to give you.

whats your fuel pressure at? and get a needle valve on that gauge just barely crack it open.

__________________
1999 2500 Laramie 4x4, Longbed, nv4500, goose neck hitch, boost/pyro gauges, raptor 100.

MnDLawn · 11-06-2009, 10:55 PM

Quote:

Originally Posted by Dracozny

i think you know the dreaded answer were going to give you.

whats your fuel pressure at? and get a needle valve on that gauge just barely crack it open.

FP is steady at 15psi. And no death codes yet. I did have a weird one, P1698 - Which is only for autos, mine is a 5-speed. I just can't bring myself to the realization of dumping another $1000 into her.

__________________

2000, 2500, 24v, NV4500, NP241DHD, BHAF, BD Wastegate, Quadzilla Boost Fooler, AirDog 150, Dana 80. Started Life As A Gasser

edcasey · 11-06-2009, 11:18 PM

Ya...the 1698 makes no sense. A 1689 would make perfect sense.

__________________
2000 3500 4x4, auto 4.10,BHAF, 4" MBRP, Power Puck, Converted to SRW, Walbro, DiPricol FP, PSC DSS, triple disk, billet trans

dennhop · 11-06-2009, 11:34 PM

isnt 1698 the companion code? Can't remember off the top of my head, but if you do a search, you should find one. try the APPS, or the MAP sensor...dunno, but maybe that'll help.

__________________
2001 QCSB 4x4, 5spd, AD150, Milemarker SI9500, CON OFE, Edge Comp(IT'S ALIVE!)

stacks, HBS 2 in leveling kit, FP/Pyro/Boost Dipricol Optix gauges, RV275s
2003 QCSB 4x4, 48RE, stock...and will remain so...or my wife might kill me.

11-02-2009, 11:04 PM	#1 (permalink)
MnDLawn Cummins Nut Join Date: Jul 2009 Location: Greentown, PA Posts: 413 Thanks: 13 Thanked 19 Times in 16 Posts MnDLawn's Truck Pics	I need HELP ASAP!!!!!! I was towing our excavator, around 12k, and all of a sudden the truck started to surge under load. As long as I kept it under 1600 rpm it ran fine, as soon as I went over 1600 rpm it would start surging. After I got it home I noticed that the lift pump was not running. So I ordered an AirDog hoping that that will fix the surging. Am I on the right track? Also, their were no codes. Any other ideas? __________________ 2000, 2500, 24v, NV4500, NP241DHD, BHAF, BD Wastegate, Quadzilla Boost Fooler, AirDog 150, Dana 80. Started Life As A Gasser

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11-02-2009, 11:11 PM	#2 (permalink)
dodgediesel59 Cummins Fanatic Join Date: Feb 2007 Location: Wisconsin Posts: 187 Thanks: 0 Thanked 7 Times in 6 Posts dodgediesel59's Truck Pics	It is very possible the VP was running empty on fuel. Its hard to say if it will live or die, but the aftermarket lift pump is needed anyways. All you can do is put the pump in and hope for the best. __________________ Robert 2001 2500 ex cab long box. flat bed with dual 5" stacks 4 gauge pillar with boost, egt, fuel press, and trans,billet auto,quadzilla xzt+, Fass 150, 125HP injectors,4.10s bfaf

11-02-2009, 11:13 PM	#3 (permalink)
caleb Cummins Fan Join Date: Jun 2008 Location: sulphur springs tx Posts: 80 Thanks: 0 Thanked 0 Times in 0 Posts caleb's Truck Pics	check for a code one more time.... sounds to me like the pump is starting to go out __________________ 01 24 valve 5spd QC/SB 2wd....soon to have stg2 monster pump/hurricane stg2 injectors,smarty s-03 w revo,juice w attitude w hot unlock, 5" exhaust ,silver bullet,fass 150 and south bend 750

11-02-2009, 11:14 PM	#4 (permalink)
grazmo Cummins Fanatic Join Date: Sep 2009 Location: Colorado Posts: 142 Thanks: 1 Thanked 3 Times in 3 Posts grazmo's Truck Pics	fuel pressure guage is a good idea to so you can tell if your lift pump is doing its job __________________ 01 CTD QC Short Bed, 5" Exhaust into 5" Flat Black Stack, Juice w Attitude stacked w Smarty, BHAF, Raptor 100, ATS stage 2 trans, ATS 5 Star TC, Aurora 4000 , Stage 5 Jammers

11-02-2009, 11:27 PM	#5 (permalink)
MnDLawn Cummins Nut Join Date: Jul 2009 Location: Greentown, PA Posts: 413 Thanks: 13 Thanked 19 Times in 16 Posts MnDLawn's Truck Pics	I have a fuel pressure gauge, but it as one of the cheap a$$ glowshift ones and it bounces all over creation. I'm just hoping the VP was running out of fuel, I run 2 stroke in it so I hope that saved it. __________________ 2000, 2500, 24v, NV4500, NP241DHD, BHAF, BD Wastegate, Quadzilla Boost Fooler, AirDog 150, Dana 80. Started Life As A Gasser

11-02-2009, 11:28 PM	#6 (permalink)
dariddell Cummins Fan Join Date: Oct 2008 Location: Angola Posts: 72 Thanks: 5 Thanked 1 Time in 1 Post dariddell's Truck Pics	i hope it lives good luck man __________________ 2001 24-valve, Fass 150, Edge W/attitude w/hot code, aurora 3000, 100hp sticks, BD converter, lock up switch, BD pressure loc, billet output shaft, custom clutches, ats valve body, 5 inch stacks, american racing rims, afe intake, and some other stuff!

11-06-2009, 09:49 PM	#8 (permalink)
MnDLawn Cummins Nut Join Date: Jul 2009 Location: Greentown, PA Posts: 413 Thanks: 13 Thanked 19 Times in 16 Posts MnDLawn's Truck Pics	Put the Airdog 150 on and the truck still surges, but not as bad. Any other tips? __________________ 2000, 2500, 24v, NV4500, NP241DHD, BHAF, BD Wastegate, Quadzilla Boost Fooler, AirDog 150, Dana 80. Started Life As A Gasser

11-06-2009, 11:18 PM	#11 (permalink)
edcasey Cummins Nut Join Date: Apr 2007 Location: Western Taxachusetts Posts: 491 Thanks: 10 Thanked 33 Times in 27 Posts edcasey's Truck Pics	Ya...the 1698 makes no sense. A 1689 would make perfect sense. __________________ 2000 3500 4x4, auto 4.10,BHAF, 4" MBRP, Power Puck, Converted to SRW, Walbro, DiPricol FP, PSC DSS, triple disk, billet trans

11-06-2009, 11:34 PM	#12 (permalink)
dennhop Diesel Freak Join Date: Sep 2007 Location: Indianapolis Posts: 505 Thanks: 2 Thanked 11 Times in 9 Posts dennhop's Truck Pics	isnt 1698 the companion code? Can't remember off the top of my head, but if you do a search, you should find one. try the APPS, or the MAP sensor...dunno, but maybe that'll help. __________________ 2001 QCSB 4x4, 5spd, AD150, Milemarker SI9500, CON OFE, Edge Comp(IT'S ALIVE!) stacks, HBS 2 in leveling kit, FP/Pyro/Boost Dipricol Optix gauges, RV275s 2003 QCSB 4x4, 48RE, stock...and will remain so...or my wife might kill me.