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5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

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  #1  
Old 04-12-2011, 12:16 AM
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Status: 5.9 cummins

   

Default Cummins Starting Hard

Lately my 2004 dodge cummins has been starting kind of hard. It usually starts right up after a couple of cranks. Now its taking a few seconds to start and its not just in the morning. Could it be the injectors. I have about 120,000 miles on her

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Old 04-12-2011, 07:26 AM
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From what I have heard from other people is that a truck like yours will start hard when the injectors are getting worn. Just keep a eye on your oil lever to make sure it isn't rising.

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Old 04-12-2011, 08:14 AM
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If you haven't done it, change the fuel filter first. Then I'd look at the lift pump (should be behind the fuel filter housing). If it's on it's way out (or cracked and letting air into the line, like mine was), it'll cause problems like that. Need to figure out what kind of pressure it's puttng out before going any further.

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Old 04-12-2011, 08:39 AM
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Injector time

dangerous1965's Sig:Goodies so far S&B intake,Silver bullet 64,AFE Stainless steel manifold, 90hp sticks, Head studs, 5" exhaust,SMARTY SSR,Airdog 150, 1/2" big Line kit,Gutted lift pump housing with draw straw Mod, T&C diesel CP-3,MP-8 at Half power, Custom intake with heater grid delete High Ram Intake, Built tranny, More guages than can be expected! 225 70r 19.5 tires at 80psi nitrous for laughs!
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Old 04-12-2011, 08:48 AM
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Find, beg, buy, or borrow a rail pressure gauge...that will tell you quite a bit. It sounds like low rail pressure which has a multitude of causes ranging from a failed pressure valve to worn injectors.
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  #6  
Old 04-13-2011, 12:29 AM
Diesel Fan
Status: 5.9 cummins

   

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What are some good injectors? I'm not trying to make a ton of power. My truck is pretty much bone stock. I just want something that's going to last me for a long time but better then stock....any suggestions?
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