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24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps

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i have a 99 cummins and when it sits for a day the batteries are grave yard dead. also when the batteries are good it seems to not get fuel (it just turns over) but if i hook a battery carger up it will fire ... JOIN NOW TO REMOVE TRACER

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Old 02-08-2013, 09:05 AM
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Default very odd problem

i have a 99 cummins and when it sits for a day the batteries are grave yard dead. also when the batteries are good it seems to not get fuel (it just turns over) but if i hook a battery carger up it will fire right up. just replaced fuel pump and on my fuel presure gauge i am reading normal (15 psi) until i go to fire then it drops to 1 psi i am thinking injection pump. anybody else have any ideas?
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Old 02-08-2013, 04:12 PM
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Im thinking low side restriction

but the batterys are first issue, need solid CCA before anything else can be diagnosed
are your batterys in good state of health and have a parasitic draw or are they just bad?
one bad battery can take out the other so test them both carbon pile test or a load tester w/e is available to you
min cranking psi should be 7psi , clean filter and lines that are not kinked or restricted

does the engine run? after boosted?

with what you have said so far this sounds like a low side supply issue

good luck
scott

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Old 02-08-2013, 05:32 PM
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The lift pump does not run while cranking so you will have low psi while starting. As long as psi is normal right after it starts your good.

Bryce's Sig:2001 Cummins 4wd auto, Edge Juice w/Attitude, Raptor 100 lift pump, S&B air intake, Banks 4" turbo back exhaust, BD sway bar links, Mopar 09 steering linkage, Borgeson steering box, pump & shaft
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Old 02-08-2013, 05:45 PM
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ugg , bryce is 100% correct, I meant running psi not cranking psi, lift pump shuts down during starter engage sry for the misinformation

but im still not convinced of a pump issue yet
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