Hey there y'all, I have a question regarding the fuel pump on the truck listed above. My fuel pump will pressurize up to 25 to 30 PSI on first prime (KOEO); it will hit 60 on third priming. I'm measuring the pressure at the fuel filter. The pressure will slowly decrease until reaching about 10 psi, this takes maybe 45-60 minutes. The car has been particularly hard to start recently, but has been running just fine after starting; no loss of power of stalling. I hooked up the pressure gauge to the fuel rail and it maintains 60 PSI while idling and while driving.
The question is, is the fuel pump supposed to lose fuel pressure at all once primed? I was under the impression the fuel system should not depressurize, but should lose a small mount of pressure then stabilize.
Any help is appreciated, thanks!
The question is, is the fuel pump supposed to lose fuel pressure at all once primed? I was under the impression the fuel system should not depressurize, but should lose a small mount of pressure then stabilize.
Any help is appreciated, thanks!
Sep 30, 2020 at 2:04 PM
