is it ok to drive with 1psi fuel pressure

[timelessconstructionllc]

My raptor lift pump is dying and the warranty replacement won't be here till Friday. Truck runs fine as long as it's not wot. Can I limp along like this till the new one gets here or will it do some sort of harm by only running 1psi fuel pressure?

 

[rbattelle]

I think it would be okay, as long as you're light on the throttle and keep the gauge no lower than 1psi.

Positive pressure at the CP-3 means it's getting the fuel it needs, so it should be getting adequate lube.

-Ryan

 

[mpaulson]

The CP3 pumps are basically the same as the ones on the Duramax's and they don't use a lift pump at all, the CP3 sucks from the tank. I would think you are fine to drive "normal" for the short term without any negative impact.

 

[CKelley1]

it is ok. like mpaulson said the cp3 was designed to have full output from minus 5 psi to +20 psi