Volvo Ec290BLC Won’t rev up

[Fastnet]

Hello

We have a Volvo 29 ton excavator with a D7 engine I believe
Middle of shift it just lost power
It starts and idles for a bit but when you go to rev it up it’s like it’s starved for diesel and cuts out
The odd time it won’t even idle it just starts and cuts out
But it starts everytime as normal

Replaced the Low pressure pump driven by fan the belt
Replaced the two high pressure pumps
The Fuel control valve
Rail sensor
Pressure sensor
Swapped injectors from another motor

Still doing the exact same thing

The fault on Techtool is
psid 96 rail pressure system fmi 12

Would appreciate any help or advice

 

[funwithfuel]

So, to be clear, you have a 290BLc tier III? You've replaced everything? Did you inspect your fuel water separator? Is it a factory Volvo filter? Is the bowl sucking air? Which filter head do you have on the separator? Is it the piston pump that unscrews or the diaphragm plunger?

 

[funwithfuel]

What do your fuel lines look like? Any getting pinched from tools thrown where they don't belong?

 

[Oğuzhan.kocer]

Proboby your problem is electirical, control alternator if you have a change replaced the alternator and test machine again.

 

[Fastnet]

Hi all

Thanks for your help
We replaced the main fuel filter housing and the machine is back working perfectly

 

[Oğuzhan.kocer]

Hello I am glad your problem solved.