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11-21-2017, 09:02 AM
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#1
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Name: cerickson
Title: fullpull108
Status: Not Here
Join Date: Feb 2011
Location: sw mo
Member`s Gallery
Posts: 1,071
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Buddies 08 problems
Post up to try to help a buddy that has an 08 3500. Truck runs fine when empty. Everytime he hooks his fifth wheel trailer on and hit a hill the truck goes into limp mode. He bought a scan tool to see what the codes tell him when it does it. He clears them. But the truck still stays in limp mode. It is totally stock. Original injectors as far as he knows. He has replace all the rubber fuel lines from the tank forward.
I know nothing about these engines. So I figured I would ask for some help for him.
__________________
Chad
Mine: 2008 Dodge 3500 megacab 4x4 drw 6 SPD stick. Anarchy EFI, Flo Pro egr delete, 5" straight pipe, Edge cts2
Wifes: 2006 Dodge 3500 megacab 4X4 drw goerend auto, 4 inch straight pipe, S&B cai, FASS 150 pump, EFI live by Anarchy
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11-21-2017, 11:44 AM
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#2
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Name: Subman631
Title: Too Much Time
Status: Not Here
Join Date: Sep 2006
Location: Madras, Oregon, Pahrump NV
Member`s Gallery
Posts: 4,311
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It could be a number of things, needs to read the codes, not just clear them.
__________________
2007 LBZ Classic Idaho Rob ATP tuning, MPI twin turbos.
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11-21-2017, 02:29 PM
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#3
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Name: sootie
Title: .....like a BAWSS
Status: Not Here
Join Date: Jan 2013
Member`s Gallery
Posts: 866
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is the truck tuned or modified in any way? Be interested in what rail pressure is doing
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11-21-2017, 07:16 PM
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#4
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Name: cerickson
Title: fullpull108
Status: Not Here
Join Date: Feb 2011
Location: sw mo
Member`s Gallery
Posts: 1,071
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Quote:
Originally Posted by sootie
is the truck tuned or modified in any way? Be interested in what rail pressure is doing
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Truck is totally stock with 260k miles on it.
__________________
Chad
Mine: 2008 Dodge 3500 megacab 4x4 drw 6 SPD stick. Anarchy EFI, Flo Pro egr delete, 5" straight pipe, Edge cts2
Wifes: 2006 Dodge 3500 megacab 4X4 drw goerend auto, 4 inch straight pipe, S&B cai, FASS 150 pump, EFI live by Anarchy
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11-21-2017, 07:17 PM
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#5
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Name: cerickson
Title: fullpull108
Status: Not Here
Join Date: Feb 2011
Location: sw mo
Member`s Gallery
Posts: 1,071
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Quote:
Originally Posted by Subman631
It could be a number of things, needs to read the codes, not just clear them.
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He said he took it to the stealership and all they came up with it being a loose fuel filter.
__________________
Chad
Mine: 2008 Dodge 3500 megacab 4x4 drw 6 SPD stick. Anarchy EFI, Flo Pro egr delete, 5" straight pipe, Edge cts2
Wifes: 2006 Dodge 3500 megacab 4X4 drw goerend auto, 4 inch straight pipe, S&B cai, FASS 150 pump, EFI live by Anarchy
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11-21-2017, 07:20 PM
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#6
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Name: cerickson
Title: fullpull108
Status: Not Here
Join Date: Feb 2011
Location: sw mo
Member`s Gallery
Posts: 1,071
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I told him I thought it could be a fuel rail pressure spike. He says he can run the truck hard empty, but it won't do it till he's hooked to his trailer. Runs out good on the flats. Hills are what sticks it in limp mode.
__________________
Chad
Mine: 2008 Dodge 3500 megacab 4x4 drw 6 SPD stick. Anarchy EFI, Flo Pro egr delete, 5" straight pipe, Edge cts2
Wifes: 2006 Dodge 3500 megacab 4X4 drw goerend auto, 4 inch straight pipe, S&B cai, FASS 150 pump, EFI live by Anarchy
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11-22-2017, 06:04 AM
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#7
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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My brother n laws 08 did the exact same thing, would run fine but when hooked to a trailer or ran hard at all would go into limp mode, it was the trans.
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11-22-2017, 07:12 AM
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#8
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Name: 4x4dually
Title: Moderator
Status: Not Here
Join Date: Jan 2007
Location: Stillwater, OK
Member`s Gallery
Posts: 31,812
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Quote:
Originally Posted by cerickson
He said he took it to the stealership and all they came up with it being a loose fuel filter.
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Riiiiight.
I'm here to wait for the final decision. I'm putting my monies on the trans as well.
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11-22-2017, 07:33 AM
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#9
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Name: BRE
Title: Too Much Time
Status: Not Here
Join Date: May 2010
Location: Southwest MO
Member`s Gallery
Posts: 12,705
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Trans or rail pressure is my call here.
Sent from my iPhone using Tapatalk Pro
__________________
Rick
07 Dodge 3500 - Tow mirrors, silencer ring MIA, Spectra air filter.
Quote:
Originally Posted by jfaulkner
There really is nothing better than OEM. That goes for anything from turbos to boobs.
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RIP Dex KCCO
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11-22-2017, 07:43 AM
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#10
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Name: 4x4dually
Title: Moderator
Status: Not Here
Join Date: Jan 2007
Location: Stillwater, OK
Member`s Gallery
Posts: 31,812
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I bet it is the transmission rail pressure or the bypass line...ya, it's the bypass line.
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11-22-2017, 01:59 PM
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#11
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Name: Subman631
Title: Too Much Time
Status: Not Here
Join Date: Sep 2006
Location: Madras, Oregon, Pahrump NV
Member`s Gallery
Posts: 4,311
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My best friend's LBZ did the same thing, only when towing and only on the hills then he got on it. The code was 00087, low rail pressure. We plugged the return on the rail and it didn't help. This is a stock LBZ except it has a tow tune in it by Idaho Rob. Had Rob test everything and couldn't find the problem, changed tunes and everything. Finally turned off the limp mode for the engine. Problem solved. The check engine light will still come on and it will set codes but it won't go into the dreaded limp mode. The limp mode for the tranny is still on. If the engine will only rev to about 2000 rpm but shift it the engine limp mode. If the truck get stuck in a particular gear, it's a tranny limp.
Another potential problem is the return line from the CP3 pump. Another guy had his do the same thing, totally stock and would engine limp towing and getting on it usually on a hill. Replaced the return line where the kink was, end of problem.
Hope this helps.
__________________
2007 LBZ Classic Idaho Rob ATP tuning, MPI twin turbos.
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11-22-2017, 05:40 PM
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#12
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Name: cerickson
Title: fullpull108
Status: Not Here
Join Date: Feb 2011
Location: sw mo
Member`s Gallery
Posts: 1,071
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The truck has 190k not.
__________________
Chad
Mine: 2008 Dodge 3500 megacab 4x4 drw 6 SPD stick. Anarchy EFI, Flo Pro egr delete, 5" straight pipe, Edge cts2
Wifes: 2006 Dodge 3500 megacab 4X4 drw goerend auto, 4 inch straight pipe, S&B cai, FASS 150 pump, EFI live by Anarchy
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11-22-2017, 07:05 PM
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#13
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Name: cerickson
Title: fullpull108
Status: Not Here
Join Date: Feb 2011
Location: sw mo
Member`s Gallery
Posts: 1,071
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What if he deleted his dpf?
__________________
Chad
Mine: 2008 Dodge 3500 megacab 4x4 drw 6 SPD stick. Anarchy EFI, Flo Pro egr delete, 5" straight pipe, Edge cts2
Wifes: 2006 Dodge 3500 megacab 4X4 drw goerend auto, 4 inch straight pipe, S&B cai, FASS 150 pump, EFI live by Anarchy
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11-22-2017, 07:29 PM
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#14
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Name: cerickson
Title: fullpull108
Status: Not Here
Join Date: Feb 2011
Location: sw mo
Member`s Gallery
Posts: 1,071
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Thanks subman. Told him to check out this page for some help. Maybe he will join. I told him it's pretty much a Cummins site, but alot of the guys on here know alot about all brands.
__________________
Chad
Mine: 2008 Dodge 3500 megacab 4x4 drw 6 SPD stick. Anarchy EFI, Flo Pro egr delete, 5" straight pipe, Edge cts2
Wifes: 2006 Dodge 3500 megacab 4X4 drw goerend auto, 4 inch straight pipe, S&B cai, FASS 150 pump, EFI live by Anarchy
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11-22-2017, 07:58 PM
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#15
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Name: thatguy69
Title: Too Much Time
Status: Not Here
Join Date: Jul 2011
Location: Mansfield Ohio
Member`s Gallery
Posts: 2,023
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Tell him to sell it and buy a cumstain
Sent from my SM-N910V using Tapatalk
__________________
1999 Compound 24v Rust Rocket
2008 F350 P24v/Allison
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11-22-2017, 09:26 PM
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#16
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Name: cerickson
Title: fullpull108
Status: Not Here
Join Date: Feb 2011
Location: sw mo
Member`s Gallery
Posts: 1,071
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Lol he said if I wanted to buy it. Said he should of bought a Dodge. Told him there is good and bad with all of them.
__________________
Chad
Mine: 2008 Dodge 3500 megacab 4x4 drw 6 SPD stick. Anarchy EFI, Flo Pro egr delete, 5" straight pipe, Edge cts2
Wifes: 2006 Dodge 3500 megacab 4X4 drw goerend auto, 4 inch straight pipe, S&B cai, FASS 150 pump, EFI live by Anarchy
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