5.4 with morning time grumble
#79
07-27-2015, 10:35 AM
#83
07-28-2015, 12:31 PM
Hold on what, I thought 30psi was normal? Isn't that what someone told me a page or two back... I have a Haynes repair manual if that helps? My sending/fuel pump is only five maybe six years old the original stop reading fuel level so I replaced it with a OEM one I got at the dealer and my fuel pressure regular is also a new OEM one I installed last September or October so what could now be causing low PSI?
#84
07-28-2015, 12:48 PM
Absolutely everything I can find says 28-45 PSI is in range. Perhaps Chris has a different source?
https://www.ford-trucks.com/forums/4...ml#post3695192
https://www.ford-trucks.com/forums/4...ml#post3695192
#85
07-28-2015, 06:57 PM
#86
07-28-2015, 07:19 PM
But who cares? That has absolutely NOTHING to do with your fuel injection system that was designed by legions of engineers to operate between 28-45 PSI.
#87
07-28-2015, 09:01 PM
Hold on what, I thought 30psi was normal? Isn't that what someone told me a page or two back... I have a Haynes repair manual if that helps? My sending/fuel pump is only five maybe six years old the original stop reading fuel level so I replaced it with a OEM one I got at the dealer and my fuel pressure regular is also a new OEM one I installed last September or October so what could now be causing low PSI?
Any of the above listed can cause low fuel pressure.
#88
07-28-2015, 09:02 PM
You are not going to find a fuel injection system that runs at 70psi unless you have a boosted setup.
#89
07-28-2015, 09:03 PM
That's very low for a Holley or Edelbrock system. Or maybe even GM, Chrysler, Toyota, Honda, Subaru, Suzuki, and everyone else under the sun for all I know.
But who cares? That has absolutely NOTHING to do with your fuel injection system that was designed by legions of engineers to operate between 28-45 PSI.
But who cares? That has absolutely NOTHING to do with your fuel injection system that was designed by legions of engineers to operate between 28-45 PSI.
#90
07-28-2015, 09:14 PM
That's very low for a Holley or Edelbrock system. Or maybe even GM, Chrysler, Toyota, Honda, Subaru, Suzuki, and everyone else under the sun for all I know.
But who cares? That has absolutely NOTHING to do with your fuel injection system that was designed by legions of engineers to operate between 28-45 PSI.
But who cares? That has absolutely NOTHING to do with your fuel injection system that was designed by legions of engineers to operate between 28-45 PSI.
