losing fuel pressure on my 2011 DD15 Cascadia

I've took some pictures and they won't post here so I can email them but one valve is in the pump and if you see a silver ball that's it and it's some kind of pressure valve. Mine was all rusty inside. The other is below the main filter and its a silver flat head plug screw which takes an Allen wrench and the first one I changed was underneath the small filter and it inserts upwards into that filter tube.

 

Could you fix the problem? I have the same problem in the same truck.

 

Read and check them

 

Check for fuel leaks on the engine. Make sure to check the fittings on the l/s rear of the head. The dealer should have pressure tested the engine fuel system.

 

I haveselo same problem but I don't know where is that shut off valves?

 

Where is that shut off vales?

 

The fuel crossover valves are located on top of the transmission. If equipped with shutoff valves there should be levers right above the battery box/def tank.

 

Could you send me the pictures of whrer the check valves are and what they look like to jwm5170@hotmail.com

 

was it making sqeezing noise when starting cold engine?... i have the same issue i guess... THANKS IN ADVANCE

 

DID YOU GET EMAIL CAN YOU SEND IY TO ME PLEASE HOUSTON.DIESEL.DIAG@GMAIL.COM