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| General Diesel Tech Farm equipment, Medium Duty, Big Rigs, and other General discussion can be found in here. |
09-26-2013, 06:25 PM
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#1
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Name: STROKETHISF350
Title: Too Much Time
Status: Not Here
Join Date: Sep 2012
Location: HARFORD COUNTY MARYLAND
Member`s Gallery
Posts: 1,253
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Cummins N14 problem please help
I have a friend with kenworth that has a cummins n14 and it having an issue that apparently even the best can't figure out. Both ken worth and cummins have looked at the truck and can't diagnose it. What happens is the truck will run for a few seconds and then die, both cam and crank sensor have been replaced, the injection pump was replaced about 400 miles ago. This is a freak problem and happened over night, I figured someone here might have encountered this same problem or know of any possible solutions. Any help is greatly appreciated.
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06 ram 3500 CCLB dually l 100% fleece injectors l ppe dual fuelers l Hamilton 188/220 l 103# valve springs l ported & oringed head l arp 425s l he 351 over 475 built by me l efi live l fass l full billet 48re built by me
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09-26-2013, 06:55 PM
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#2
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Name: will24
Title: That guy
Status: Not Here
Join Date: May 2010
Location: South Williamsport, PA, Elverson, PA and Luray, VA
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Posts: 2,719
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Sucking air in the fuel system? Check valve at the ECM cooling plate can fail causing it to lose prime. It will continue to shut off as it pulls air each time.
That's assuming it's not something electrical. Any codes?
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09-26-2013, 08:41 PM
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#3
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Name: Bad Moose
Title: Just a pain in the arse
Status: Not Here
Join Date: Oct 2008
Location: Kansas
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Posts: 921
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Run a hot wire direct to the ecu and see if it duplicates. Check grounds also.
__________________
'03 F250 King Ranch
Custom tuned SCT X3 by Eric at Innovative
3.5" DP into 4" AFE exhaust
Airraid filter
Edge Evolution for gauges
EGR went bye bye
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09-26-2013, 08:45 PM
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#4
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Name: jfaulkner
Title: Douche Hunter
Status: Not Here
Join Date: Sep 2007
Location: Ohio
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Posts: 5,864
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Quote:
Originally Posted by Bad Moose
Run a hot wire direct to the ecu and see if it duplicates. Check grounds also.
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X2 these hate bad grounds.
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Quote:
Originally Posted by StainlessRRA
Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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09-26-2013, 08:56 PM
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#5
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Name: cumminstech2010
Title: Green Behind the Ears
Status: Not Here
Join Date: Apr 2013
Location: Jackson, Ohio
Member`s Gallery
Posts: 70
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Make sure the 3 pin power and ground supply wires are wired directly to the battery with 15 amp fuses on each power wire. Some people like to cheat and hook it into the starter which cause issues.
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2013 Jetta TDI 6 speed manual. Bone stock 45-50 mpg
They call me Barney
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09-26-2013, 09:09 PM
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#6
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Name: cumminstech2010
Title: Green Behind the Ears
Status: Not Here
Join Date: Apr 2013
Location: Jackson, Ohio
Member`s Gallery
Posts: 70
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Also could be losing key switch input. I've heard of key switches shorting out especially if there's a lot of keys on the key ring hangin on there.
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2013 Jetta TDI 6 speed manual. Bone stock 45-50 mpg
They call me Barney
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09-26-2013, 09:14 PM
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#7
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Name: STROKETHISF350
Title: Too Much Time
Status: Not Here
Join Date: Sep 2012
Location: HARFORD COUNTY MARYLAND
Member`s Gallery
Posts: 1,253
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Quote:
Originally Posted by will24
Sucking air in the fuel system? Check valve at the ECM cooling plate can fail causing it to lose prime. It will continue to shut off as it pulls air each time.
That's assuming it's not something electrical. Any codes?
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Not sure if there's any codes I would assume the other mechanics would have checked for them but they had no luck fixing anything and I do not have any way to check for codes. I guess this could definatly be a possibility I figured it's either fuel related or electrical considering for the few seconds it's running it sounds fine then dies
__________________
06 ram 3500 CCLB dually l 100% fleece injectors l ppe dual fuelers l Hamilton 188/220 l 103# valve springs l ported & oringed head l arp 425s l he 351 over 475 built by me l efi live l fass l full billet 48re built by me
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09-26-2013, 09:15 PM
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#8
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Name: 02Dmax
Title: Too Much Time
Status: Not Here
Join Date: Nov 2007
Member`s Gallery
Posts: 365
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Had one do that exact same thing and it ended up being a cracked brand new fuel filter. Easy to check.
__________________
jponder - Moral is you want to kill power and find the breaker you cut it with bolt cutters and you killed two birds with one stone.
'78 International Service Truck with DT466. Don't knock it 'til you try it. 
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09-26-2013, 09:16 PM
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#9
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Name: STROKETHISF350
Title: Too Much Time
Status: Not Here
Join Date: Sep 2012
Location: HARFORD COUNTY MARYLAND
Member`s Gallery
Posts: 1,253
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Quote:
Originally Posted by Bad Moose
Run a hot wire direct to the ecu and see if it duplicates. Check grounds also.
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This is on the list also, I think this is what I will check first just to rule out electrical issues
__________________
06 ram 3500 CCLB dually l 100% fleece injectors l ppe dual fuelers l Hamilton 188/220 l 103# valve springs l ported & oringed head l arp 425s l he 351 over 475 built by me l efi live l fass l full billet 48re built by me
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09-26-2013, 09:16 PM
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#10
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Name: 02Dmax
Title: Too Much Time
Status: Not Here
Join Date: Nov 2007
Member`s Gallery
Posts: 365
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Does it sputter or just die like you turn the key off?
__________________
jponder - Moral is you want to kill power and find the breaker you cut it with bolt cutters and you killed two birds with one stone.
'78 International Service Truck with DT466. Don't knock it 'til you try it.
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09-26-2013, 09:17 PM
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#11
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Name: STROKETHISF350
Title: Too Much Time
Status: Not Here
Join Date: Sep 2012
Location: HARFORD COUNTY MARYLAND
Member`s Gallery
Posts: 1,253
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Quote:
Originally Posted by 02Dmax
Had one do that exact same thing and it ended up being a cracked brand new fuel filter. Easy to check.
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Did it start fine initially then just die every time ?
__________________
06 ram 3500 CCLB dually l 100% fleece injectors l ppe dual fuelers l Hamilton 188/220 l 103# valve springs l ported & oringed head l arp 425s l he 351 over 475 built by me l efi live l fass l full billet 48re built by me
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09-26-2013, 09:43 PM
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#12
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Name: DieselMonster
Title: Too Much Time
Status: Not Here
Join Date: Sep 2013
Location: Clarkfork, ID
Member`s Gallery
Posts: 674
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I have had this happen a few times..... In some cases the ecm might not be getting a signal from the crank or cam sensor 1 st time ..
2nd time was a bad ground ( occasionally this would happen, found bad ground inside wire that had been stabbed with a tester ) ..
3rd time was intermittent loss of power to ECM ....
Do keep us posted on this one ... curious what you might find
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15.5*,5" straight, DPS X 3pc mainfold, Hx35W stock, 10"AFE cone,265/75/16 E, Royal Purple blood, 12MM ARP's,
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09-26-2013, 10:05 PM
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#13
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Name: STROKETHISF350
Title: Too Much Time
Status: Not Here
Join Date: Sep 2012
Location: HARFORD COUNTY MARYLAND
Member`s Gallery
Posts: 1,253
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This should be fun lol. I should be digging into it next week once the new starter comes on I'll keep everyone updated
__________________
06 ram 3500 CCLB dually l 100% fleece injectors l ppe dual fuelers l Hamilton 188/220 l 103# valve springs l ported & oringed head l arp 425s l he 351 over 475 built by me l efi live l fass l full billet 48re built by me
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