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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Fuel pressure

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Old Sep 12, 2016 | 10:27 AM
  #11  
gh0stman's Avatar
Diesel Wrench
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Originally Posted by kerley
I suggest that you remove the Glow Shift fuel pressure gauge and throw it in the trash because they are not good quality gauges but they are inexpensive. I buy Autometer, some folks but Isspro they are both top quality gauges. also The Mr. Gasket pump is as you said a seven pound pump at best. These Cummins require at least eighteen pounds +=fuel pressure to lube the vp44 fuel injector pump. Go to the AutoMeter and Isspro web sites and see what they have, but before you buy check with us for guidance, Good luck
Bosch specs the pump at a minimum of 10 psi. General consensus is 14 psi minimum. But its also good to have the pressure above the minimum that way cool fuel can circulate through the pump. I agree with the glow shift gauges. There are more accurate brands out there.
 
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