dying under hard acceleration

[junior20762003]

hey oilburners having issues with the ford it still dies on hard acceleration

i dont know what else it could be i just replaced the lift pump,check valve is plugged, injectors return lines all new with o rings and caps as well fuel filter but if i drive it normal its fine only under hard acceleration it falls flat on its ass. my last issue was a crack in the fuel line under the cab but i replaced it with a hose about maybe 4 inches help me out o and tank is full of diesel

 

[hesutton]

What's your fuel pressure doing?

Heath

 

[junior20762003]

are you talking about from the lift pump or the injection pump?? thanks heath

 

[hesutton]

I'd like to know what pressure your IP is seeing, so after the filter would be what I guess I'm asking for. If you don't have a fuel pressure gauge, you can plump it in the filter header by pulling the vaccum switch for the fuel filter light. I run a fuel pressure gauge on both my IDI's after the filter to see what pressure the IP is getting in it's inlet. If your pressure is nonexistant or low, it could be starving for fuel at higher RPM.

Heath