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

hard starting after plate install

Old Jun 8, 2009 | 03:09 PM
  #1  
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Default hard starting after plate install

i just installed a #10 plate in stock position.now when it sits overnight she wont start without me giving it some throttle as if there is a fuel leak that drains down overnight.i checked the banjo bolt that i removed for access to afc but it is tight and dry.any ideas?
 
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Old Jun 8, 2009 | 05:21 PM
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my 12V always takes just a bump on the skinny pedal to fire over. I dont think theres a problem.
 
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Old Jun 8, 2009 | 06:51 PM
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How much cranking does it take to start? For a lot of 2nd Gen 12V's, they seem to need a little pedal to start but still no extended cranking time.
 
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Old Jun 8, 2009 | 08:21 PM
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What is your idle at?

Should be close to 800 rpm in gear with the AC on.

I bet you need to bump it a bit.
 
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Old Jun 9, 2009 | 12:14 AM
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actually it will fire right away as usual but will stumble and miss then die.then i will give it a bit of thtottle then hit the key and it will start right up as before and idle just fine.my idle speed is good at app. 850-900 rpm.it only does this when its cold now.throughtout the day its is fine like before i installed the #10 plate.thanks for the ideas
 
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Old Jun 9, 2009 | 01:08 AM
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check your shut off solonoid. loose wires and such.
 
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Old Jun 9, 2009 | 09:52 AM
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also whenever you do anything like that,plate,injectors,ect.they get a little cold collard
 
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Old Jun 9, 2009 | 09:59 AM
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Could be something unrelated to the plate - like air getting in from a dry rotted fuel line. Have you ever changed your supply and return fuel lines?
 
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Old Jun 9, 2009 | 10:24 AM
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Originally Posted by Dr. Evil
Could be something unrelated to the plate - like air getting in from a dry rotted fuel line. Have you ever changed your supply and return fuel lines?
KINDA WHAT I WAS THINKIN BUT AS WELL ON MY 12VER SHE WOULD ACT THE SAME ALWAYS HAD TO TAP IT A LITTLE TO GET HER FIRED OFF
 
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Old Jun 9, 2009 | 11:09 AM
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A lot of people with 12Vs have to give it just a little pedal to get it going.
 
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