New fuel pump, No fuel pressure, No start
#61
It is the HPOP that was in it when I got it, I haven't changed it, I only took it out to check it, and put a new gasket on it, and the oil pressure gauge will go up to half way when it is cranking, so I don't think there is an oil pump issue, I have a 5000 PSI gauge screwed into the right cylinder head, and after I pull started it, it was idling with 600 PSI, and went up to 2000 at 1500 RPM
#62
#63
Maybe when you reinstalled the HPOP, something happened to the check valve or whatever it is that prevents the reservoir from draining back down into the pan. But that would only tell half the story; wouldn't explain the zero injection pressure after filling the res. Something about the higher RPM while pulling it, the answer is there somewhere....
#64
#65
Maybe when you reinstalled the HPOP, something happened to the check valve or whatever it is that prevents the reservoir from draining back down into the pan. But that would only tell half the story; wouldn't explain the zero injection pressure after filling the res. Something about the higher RPM while pulling it, the answer is there somewhere....
If the res. drained out, then when he turned it over the pump put air back into the oil rails. So basically its like he just pulled the injectors and its all full of air. Fix the res drain problem, get it running again and you should be good to go.
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Shawn Paris
1987 - 1996 F150 & Larger F-Series Trucks
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08-02-2016 10:56 PM