Welderdad
Newbie
1998 Chevy k3500 Silverado 7.4L
I'm testing at 45-50 psi after truck is warmed up. When revving it'll hit 50 psi and idle around 45 psi.
From what I understand should be 55 to 65.
Truck feels mostly good. But constantly feels a little sluggish. Idles perfect, starts hot or cold. No misses.
I started with fuel pressure regulator, then fuel injectors, lower intake gasket, distributor oil pressure sensor, then I got distracted and did water pump , radiator, alternator, etc.
Back to fuel.
What's on my mind . I was told there are several fuel pressure regulators that fit but only TWO that allow correct flow. Is this true? I can't verify the part number on the one I installed but can verify it was new.
I need to decide to do a new fuel pump, or tear out the new FPR and deconstruct all the hard work I did to get there.
If anyone has the correct part number for the correct fuel pressure regulator I would probably start there as It's a more cost effective route.
Also the part number to the specific fuel pump with assembly would be awesome. There's so many to choose from I don't want to put the wrong on in.
The goal is to keep the truck as close to stock as possible.
I'm testing at 45-50 psi after truck is warmed up. When revving it'll hit 50 psi and idle around 45 psi.
From what I understand should be 55 to 65.
Truck feels mostly good. But constantly feels a little sluggish. Idles perfect, starts hot or cold. No misses.
I started with fuel pressure regulator, then fuel injectors, lower intake gasket, distributor oil pressure sensor, then I got distracted and did water pump , radiator, alternator, etc.
Back to fuel.
What's on my mind . I was told there are several fuel pressure regulators that fit but only TWO that allow correct flow. Is this true? I can't verify the part number on the one I installed but can verify it was new.
I need to decide to do a new fuel pump, or tear out the new FPR and deconstruct all the hard work I did to get there.
If anyone has the correct part number for the correct fuel pressure regulator I would probably start there as It's a more cost effective route.
Also the part number to the specific fuel pump with assembly would be awesome. There's so many to choose from I don't want to put the wrong on in.
The goal is to keep the truck as close to stock as possible.