12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

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  #11  
Old 05-26-2010, 09:47 AM
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Originally Posted by Hammer
With a electric fuel system you do not need a "needle valve".
Totally missed the electric guages. Just read the first part of the post. Thx.
 
  #12  
Old 05-26-2010, 10:22 AM
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Originally Posted by Hammer
With a electric fuel system you do not need a "needle valve".

There is a port on the top of the AD on the out side of the fuel supply,under the end of the motor,to place a fuel pressure gauge or the optional low pressure warning alarm.

A FASS also has the same port on their units on the out side of the fuel supply.

On Edit...
The "Needle Valve" is only needed on the factory mechanical fuel supply system to control the pulses that it produces.
i am using that port for the low pressure warning lamp and my fuel pressure gauge sending unit is in the line goin to the p pump.
so what are you trying to tell me??????????????
 
  #13  
Old 05-26-2010, 06:46 PM
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that you dont need the needle valve.
 
  #14  
Old 05-28-2010, 08:23 AM
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that you dont need the needle valve.
Thank You!

Again,With an electric fuel system you do not need a "needle valve".
 
  #15  
Old 05-28-2010, 11:58 AM
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ok then explain my guage doin what its doin
 
  #16  
Old 05-28-2010, 12:08 PM
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are all the filters tight on the air dogg?

did you have to put the " high flow" tube in your tank or is that the one that comes with a whole new unit that drops in the tank?
 
  #17  
Old 05-28-2010, 11:27 PM
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yeah dave i had to install the draw straw in the basket
 
  #18  
Old 05-29-2010, 08:11 AM
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Originally Posted by 12vcummins96
yeah dave i had to install the draw straw in the basket
how far did you push the draw straw down in the tank? Just wondering if you have enough fuel in the tank ... gotta start with the simple things
 
  #19  
Old 05-30-2010, 10:58 PM
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ok (update) i dropped the tank today and replaced my fuel sending unit i removed all the one way valve crap out of the module and put the drawstraw all the way in the bottom of the module now all that is in that module is the drawstraw and the return line no more jumping fuel pressure while driving i think i need to put a new ofv in it though i get a jump only at idle also i had 3k springs in it i think one is bad cuase i cant spin but 2600 now but hey the fuel issue is fixed thanks to you all for your help
so im gonna get a new 4k kit ive already got springs so y not hehe
Thanks alot guys
 
  #20  
Old 05-30-2010, 11:02 PM
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Youre the man. Good deal
 



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