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
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.
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.
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.