The Ford Barn - View Single Post - in-line elec fuel pump not pushing through mechanical pump

JayChicago · 10-24-2025, 08:06 PM

With electric pump off, mechanical pump sucking, there will be negative pressure at the pressure regulator. So I would think the regulator will not restrict.

10-24-2025, 08:06 PM	#19
JayChicago Senior Member Join Date: Jan 2019 Location: Chicago Posts: 1,028	Re: in-line elec fuel pump not pushing through mechanical pump With electric pump off, mechanical pump sucking, there will be negative pressure at the pressure regulator. So I would think the regulator will not restrict.