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-   -   Fuel pressure drops after startup (https://www.dieselbombers.com/24-valve-2nd-gen-dodge-cummins-98-5-02/110544-fuel-pressure-drops-after-startup.html)

dieseltech2525 03-21-2013 10:14 PM
Fuel pressure drops after startup
 
So i have a 2000 Dodge Ram 2500 and I just put an FRRP Raptor 100gph pump on the truck. before the truck wouldnt go above 4 psi even when i bumped the starter. now it jumps up to 21psi when i bump it but then when i start it and wait about 10-15 seconds FP starts dropping and doesnt pick back up... any ideas?:argh:

superjoe83 03-22-2013 11:18 AM
Does it ever come back up after driving? Mine will drop about 4psi when the grid heaters cycle, but will come back up after they stop

dieseltech2525 03-22-2013 07:57 PM
no. i dont chance driving the truck because the LP drops below 4 psi of fp.


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