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Im stumped have a 08 superduty 6.4 just rebuilt the eng started eng has 10 psi oil pressure its a new oil pump every thing had breakin lube and the pressure releaf valve is all the way up,i have oil i

Fresh rebuild low oil pressure new oil pump

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Sounds like there is wear elsewhere causing the drop in oil pressure. I thicker oil will raise the pressure but could also further damage the engine.

Posted on Dec 10, 2014

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I recently done engine completely on my Toyota conquest 2e engine,but the oil pump isn't pumping the oil up.I've bought the new oil pump still no oil coming up.What must I do please help?


Did you prime the pump before installation? New pumps should be filled with some fluid before you install them, such as engine breakin lube.

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Just had an engine rebuilt not getting oil pressure


you need to pre pressure a new /rebuilt engine so you get oil into all the galleries , connect an electric drill to the oil pump drive and spin for a good 3-4 minutes , connect a pressure gauge as well so you can see the pressure build up

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1989 ford f-150


If the fuel pump(s) run while the pressure is falling, replace the fuel pressure regulator and (although I'm sure you've already done this), replace the fuel filter. If the fuel pumps appear to be turning off by themselves, replace the inertia (fuel cutoff) switch.

Apr 13, 2014 | Cars & Trucks

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1989 ford f-150 start but stalls out


Injector require 40 PSI on a Ford. Your Fuel Pump is BAD

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2001 Chevy express van oil pressure


Did you verify oil pressure with an oil pressure gauge besides the one on the instrument cluster?

Aug 21, 2012 | Cars & Trucks

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2.8l v6 in a s10 blazer. no head gasket problems thus far. wondering why my oil pressure gauge fluxuates? minor rpm change while oil pres guage does its thing why?


Oil pressure always changes with rpm.
At idle you should have around 10 psi, and it should max out at high rpm around 50 psi or so.
You not only can't have as much pressure at idle, but you don't need it either.

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1 Answer

Low presure 300 psi to injectors,fuel presure though filters seems good but not enough to start my 2005 powerstroke 6 litre diesel (F 350 superduty)Help???


2006?? if so then its common rail with one high pressure pump ,the fuel through the filters is low pressure anyway ,then it goes into the high pressure pump that delivers the pressure to the injectors .If you dont know what your doing with this new piece of kit then refer to the dealer because it has a lot of fancy electronics controlled by encrypted software

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2001 F350 7.3L Diesel won't start


I take it you have a crank no start issue, the fuel is injected by high pressure oil, no oil pressure no start, there are 2 oil pumps, low lube pressure and high injection control pressure (ICP) the injection system is hydraulic controls electric actuated fuel injection, if when you crank the engine over and the oil pressure guage goes up base pressure is ok, then its high pressure or the best thing I can say is pull codes and that can give me a good direction to send you in, there are many things that can cause that problem, if the fuel heater shorts out, the pcm and it are on the same 30amp circuit causin the same problem and still you would have proper fuel pressure readings.

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