A miss

jpaulreynolds · 06-22-2008, 05:33 PM

I have a 2000, just had the injector pump and lift pump replaced. It's developed a miss of some sort. Idles rough and tends to be worse when it's at operating temperature. Runs down the road great, just rough at idle. The mechanic that replaced the pumps said his computer couldn't pick anything up on a possible injector problem and no codes on the pump. Attempted to crack each line individually and still couldn't make a determination.

Any ideas?

rthrbelsewhere · 06-22-2008, 06:11 PM

Maybe a lot of water in the filter unit? Questionable fuel has made my truck sputter a bit like that. Drained the fuel filter canister and refreshed with a new baldwin filter and it was better, but didn't fully go away until i filled up with a fresh batch of diesel from a known good station i've used before. I don't know if that will do it or not, but maybe you'll get lucky.

The other idea that I had was I remember reading a post in here about a wire that was rubbing against the a/c pump and it rubbed itself raw and once it got electrical taped and zip tied, everything went back to normal. If i can find that post, i'll drop it in here for ya.

Good luck!

__________________
'06 Inferno Red 2500 QC, Auto, 285 70 17 BFG AT KO's, Century Ultra Topper, CoolPipe, Icebox w/4091, Amsoil's in da pumpkins and xfer case.

rthrbelsewhere · 06-22-2008, 06:23 PM

Ok...the tape up project...that was for the trani popping in and out of lockup...so nevermind that.

But someone said that they cleaned up the battery terminals and it fixed it for a while until they replaced them and then all was betta.... got corrosion?

One other said lift pump issues, fuel pressure test would diagnose that one.

__________________
'06 Inferno Red 2500 QC, Auto, 285 70 17 BFG AT KO's, Century Ultra Topper, CoolPipe, Icebox w/4091, Amsoil's in da pumpkins and xfer case.

itsfred804 · 08-11-2008, 07:49 PM

if it is missing simpl get one of those temp guns with the laser in it and measure the temp on the manifold at each cylinder find the one that has a big difference of temp compared to the rest of the cylinders and that is your missing injector

__________________
2001 DODGE 2500 CUMMINS DUAL LIFT PUMPS AFTER PUTTING IN THE THIRD VP44 THIS YEAR CANT FORGET THE NUGGER TINT AND THE NUGGER SUBZ AND THE NUGGER RIMZ

pro99 · 08-11-2008, 07:51 PM

Or have the Dealer do the injector kill test to find out

__________________
Charles Estep

Broke Down · 08-11-2008, 07:51 PM

i had the same problem when i changed mine. battery terminals loose and i had to add some injector cleaner/additive.

__________________
2000 4x4 3/4 ton ex cab lwb ATS converter,suncoast heavyduty rebuild kit,ATS valve body,copiolt,edge EZ, and a big hole in the seat.

06-22-2008, 05:33 PM	#1 (permalink)
jpaulreynolds Newbie Join Date: Jun 2008 Posts: 2 jpaulreynolds's Truck Pics	A miss I have a 2000, just had the injector pump and lift pump replaced. It's developed a miss of some sort. Idles rough and tends to be worse when it's at operating temperature. Runs down the road great, just rough at idle. The mechanic that replaced the pumps said his computer couldn't pick anything up on a possible injector problem and no codes on the pump. Attempted to crack each line individually and still couldn't make a determination. Any ideas?

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06-22-2008, 06:11 PM	#2 (permalink)
rthrbelsewhere Cummins Nut Join Date: Jan 2007 Location: Greeley, Co Posts: 361 rthrbelsewhere's Truck Pics	Maybe a lot of water in the filter unit? Questionable fuel has made my truck sputter a bit like that. Drained the fuel filter canister and refreshed with a new baldwin filter and it was better, but didn't fully go away until i filled up with a fresh batch of diesel from a known good station i've used before. I don't know if that will do it or not, but maybe you'll get lucky. The other idea that I had was I remember reading a post in here about a wire that was rubbing against the a/c pump and it rubbed itself raw and once it got electrical taped and zip tied, everything went back to normal. If i can find that post, i'll drop it in here for ya. Good luck! __________________ '06 Inferno Red 2500 QC, Auto, 285 70 17 BFG AT KO's, Century Ultra Topper, CoolPipe, Icebox w/4091, Amsoil's in da pumpkins and xfer case.

06-22-2008, 06:23 PM	#3 (permalink)
rthrbelsewhere Cummins Nut Join Date: Jan 2007 Location: Greeley, Co Posts: 361 rthrbelsewhere's Truck Pics	Ok...the tape up project...that was for the trani popping in and out of lockup...so nevermind that. But someone said that they cleaned up the battery terminals and it fixed it for a while until they replaced them and then all was betta.... got corrosion? One other said lift pump issues, fuel pressure test would diagnose that one. __________________ '06 Inferno Red 2500 QC, Auto, 285 70 17 BFG AT KO's, Century Ultra Topper, CoolPipe, Icebox w/4091, Amsoil's in da pumpkins and xfer case.

08-11-2008, 07:49 PM	#4 (permalink)
itsfred804 Newbie Join Date: Jun 2007 Location: granger iowa Posts: 9 itsfred804's Truck Pics	if it is missing simpl get one of those temp guns with the laser in it and measure the temp on the manifold at each cylinder find the one that has a big difference of temp compared to the rest of the cylinders and that is your missing injector __________________ 2001 DODGE 2500 CUMMINS DUAL LIFT PUMPS AFTER PUTTING IN THE THIRD VP44 THIS YEAR CANT FORGET THE NUGGER TINT AND THE NUGGER SUBZ AND THE NUGGER RIMZ

08-11-2008, 07:51 PM	#5 (permalink)
pro99 Moderator Join Date: Nov 2005 Location: Chesterfield , Michigan Posts: 2,076 pro99's Truck Pics	Or have the Dealer do the injector kill test to find out __________________ Charles Estep

08-11-2008, 07:51 PM	#6 (permalink)
Broke Down Cummins Nut Join Date: May 2008 Location: Pineville,LA Posts: 418 Broke Down's Truck Pics	i had the same problem when i changed mine. battery terminals loose and i had to add some injector cleaner/additive. __________________ 2000 4x4 3/4 ton ex cab lwb ATS converter,suncoast heavyduty rebuild kit,ATS valve body,copiolt,edge EZ, and a big hole in the seat.