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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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01 5.9 24v fuel psi?

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  #1  
Old 05-13-2012, 10:20 AM
hip66's Avatar
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Default 01 5.9 24v fuel psi?
should there be fuel psi at the vp44 supply line when truck is off.Thanks
 
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  #2  
Old 05-13-2012, 10:53 AM
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no it bleeds off, then when u turn the key and wait to start engine lite goes off ur lift pump has already supplied the IP with the amount of fuel it needs.
 
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Old 05-13-2012, 10:53 AM
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Right after you shut it off there maybe a little pressure if you loosen the banjo bolt


Posted from my ifail when I should be working
 
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Old 05-13-2012, 12:27 PM
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thanks for the info trying to figure out hard to start problem have 16-18 psi when idling at ip'replace vp44 return check valve & washers same to help.
 
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Old 05-13-2012, 12:36 PM
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Is it hard to start when hot?
 
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Old 05-14-2012, 07:39 PM
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no seems to start ok after it warms up
 
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Old 05-14-2012, 09:56 PM
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when you park it try parking it down hill and see if it starts better when cold. if it starts better then it's your cross over tube o-rings
 
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