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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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just replaced my lift pump in my 03 dodge 5.9 cummins, this has been upgraded to a 05 in tank lift pump, but it takes 35 - 45 seconds to prime, is there a relief valve or check valve on the injection pump that i ... JOIN NOW TO REMOVE TRACER

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  #1  
Old 12-10-2012, 09:16 PM
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Default lift pump taking 35 seconds to prime HELP

just replaced my lift pump in my 03 dodge 5.9 cummins, this has been upgraded to a 05 in tank lift pump, but it takes 35 - 45 seconds to prime, is there a relief valve or check valve on the injection pump that i need to check and if so where is it located
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Old 12-10-2012, 10:43 PM
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Was it professionally done or by a normal person? Im not an expert on this but I'm sure theres a bleeding procedure for any fueling replacements. Not exactly sure what the procedure is but my guess is you have air in your lines could just correct itself but I'll let someone else chime in on this one.

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Old 12-11-2012, 08:19 PM
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did it myself, i'm a heavy equipment operator and do a lot of the mechanicing myself, and on the bigger diesel engines there is a check valve or relief valve but i'm having trouble with this 5.9
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Old 12-12-2012, 07:37 PM
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My 3rd pump to replace, never had that issue, maybe you got a bad pump. Pop the hose lose at the filter check flow there, pressure to if you can. I only 1 time had to cycle the key to get fuel thru the filter, started right up.
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Old 12-13-2012, 06:43 PM
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I gotta agree with South Texas Goat. Could be a bad or weak pump. I would also chech the voltage to your pump to make sure that it is correct. Did you replace your filter? Also check all lines to ensure that they are tight with no air leaks or crimps.

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Old 12-14-2012, 06:32 AM
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Instead of pulling the line, loosen the filter housing...see how much fuel gets pumped out.

Its 500ml/15 seconds (or something like that) is what they expect flow rate to be?

There is no relief valve, they are self bleeding system.
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