hi strangers I have a volvo 780 2004 and from time tu time idling or driving i receve the mesage on my closter scren saing that i dont have fuel and the engine die slowly . ihave to crank it again but this time for a longer period ,pres the acceleration and its starts slowly , after that runs great for hours . i scan it and the fuel presure is 40 psi on idle .i change the fuel filter and the air filter recently but this problem is from before . can someone help please

 

Welcome to the forums! It sounds as if you have a failing fuel pump. They can run fine, but if they are in failure mode, pressure will fall, similar to your symptoms.