Factory fuel pump question ???

Longcummins

Longcummins

Green Ears & Red Neck
Joined
Feb 6, 2013
Messages
121
What are the signs of a fuel pump going out , or do they just stop working all at once?


Sent from my iPhone using Tapatalk with fat fingers
 
There's a few. Engine will fail to start. Run poorly, pop and buck under certain conditions, etc. obviously it's best to check lift pump pressure with a gauge to see actual numbers. An aftermarket lift pump such as AirDog is never a bad choice as a step up from factory.
 
I am trying to figure out if my lift pump is going bad or if its the cp3 issue. When doing a short wide open throttle run it will fall flat on its face. As soon as I lift off the throttle its back to normal. I will try to get a gauge on the lift pump to see if my pressures are good.


Sent from my iPhone using Tapatalk with fat fingers
 
Plug the rail relief valve to test or replace with a known good PRV.
 
I just read a post by you about three threads down about a fuel rail prd made by T&C. Who are they and where do I find info on them and their products. Thanks for the help and info.
 
Wouldn't it throw a code if the PRV was cracking open? Mine does this exact same thing. I figured it was low FP but I haven't put a gauge on it either.
 
I have no codes on mine, only the issues being discussed .


Sent from my iPhone using Tapatalk with fat fingers
 
You must log in or register to reply here.
Back
Top