What’s the possibility of a 2 fuel pump getting ready to go bad in less than a year or is ther something else I should be checking but if I have no fuel pressure at the fuel rail schrader valve then it is the fuel pump correct ?

 

Assuming the pump is getting power, and has a good ground, yep.

What brand pumps are you installing??? If you are buying the cheap parts store fellers, yeah, lasting a year is actually pretty good....

 

Carquest premium pump from advanced 🤷! The last one I had had no pressure but I could still hear the pump prime so I changed it and it was fine but yesterday I stopped went in a store came out no start just crank pushed in on the schrader valve got some fuel then went back hit the key fired up no issues since !

 

Air pocket? Lord only knows......

 

I got a carter off of Rockauto.com, been installed for 2~2.5 years now??? still going strong. I did have a good drop in mpg's after the install (1.5ish) and tried to get that back with tuning but did not succeed. Ended up swapping injectors to the 12 hole versions for the 4.7 + a 2003 intake manifold and motored on.

 

What should fuel pressure reading be and if they are in the 90s is that bad

 

I *think* it should be around 50PSI...... but, not 100% sure on that.

 

49.2 +/- 5 psi is the spec

 

Alright guys did it again no fuel at the rail can hear the pump prime or try to prime ? Last time it ran I put gauges on it and I think was reading in the 90s key on and running ! Do you guys believe it to be another bad pump ?

 

Bad regulator too. Pressure is way too high.