1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

12 VALVE WON'T START!! **PLEASE HELP!!!**

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Old Apr 7, 2010 | 10:56 AM
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Default 12 VALVE WON'T START!! **PLEASE HELP!!!**

Hey guys I ran my 91 4x4 12 valve out of fuel!! Yes i'm an idiot,Anyways I picked up $20 worth of diesel poured it in and primed it a **** load of times and it just turns over I pulled the fuel filter off and filled it with fuel,pulled the fuel line and return line off blowed them out with my compressor (Just in case it picked up some crap) cracked the injector lines they are getting fuel now still no go it just turns over Can somebody please help me with this? Thanx
 
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Old Apr 7, 2010 | 11:21 AM
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1991 12 valve 4x4,auto,4"lift,35" Thornbirds,(Motor completley stock),winch,visors....
 
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Old Apr 7, 2010 | 11:24 AM
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From: Why-homing
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crack slightly a few injector lines at the head, then turn truck over.......you arent getting fuel to the injectors yet, after some fuel oozes out the cracked injector lines tighten and go bro
 
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Old Apr 7, 2010 | 11:27 AM
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Originally Posted by Whit
crack slightly a few injector lines at the head, then turn truck over.......you arent getting fuel to the injectors yet, after some fuel oozes out the cracked injector lines tighten and go bro
x2
 
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Old Apr 7, 2010 | 11:34 AM
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Ya thats what I kinda figured to,Probably an airlock in the system. Will do,Thanx

---AutoMerged DoublePost---

Is there a bleeder valve on the injector pump?
 

Last edited by WING_NUT; Apr 7, 2010 at 11:34 AM. Reason: Automerged Doublepost
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Old Apr 7, 2010 | 11:36 AM
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i open them about 1/2-3/4 turn the fuel should really spray out (it dose for me anyway)
then after all 6 have sprayed lock them back down and it should start

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Originally Posted by WING_NUT

Is there a bleeder valve on the injector pump?
i dont belive so there is one on top of the filter on the side of the block tho
 

Last edited by big bad diesel 416; Apr 7, 2010 at 11:36 AM. Reason: Automerged Doublepost
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Old Apr 7, 2010 | 06:56 PM
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Got her goin,Had a airlock on the injector lines.
Thanx again!!!!
 
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Old Apr 7, 2010 | 09:41 PM
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good to hear wingnut
 
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Old Apr 8, 2010 | 09:58 AM
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hey man id be careful my truck did the same thing this summer and it ran fine for about a week or 2 then it would just die even when i had fuel and it just happened again and again until finaly it my injector pump was burnt up i found it that it was my lift pump that went out and when it kept not getting fuel it slowley roasted the injector pump and soo i replaced the lift pump wich is like 35 dollars and then had to spend 2000 on a new injector pump sooo if it happens agaion stop driving it and go up to your local auto parts store and order the lift pump it will most likley save you a couple grand butt your truck probably wont die again just be careful running it out of petro chemical man
 
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Old Apr 8, 2010 | 02:22 PM
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another way ive done many of times unfortantly got smebody to pull start me it gets your lift pump moveing alot faster than trying to crank it or bleed the injectors but like Levi miller said it will burn your pump up
 
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