whats wronge 99 cumnnis 2500 starts cranks right up lops for about 5 to 10 seconds dies. had code for bad fuel timming cam sensor replaced both meaning vp pump also replaced tps crankshaft sensor envening replaced fuel after all that new lift pump 14 psi. need so help please no code thanks roger

 

So you do have a new VP44 injection pump?

 

Need better info - dont be afraid to type.

How are you checking codes? With a scanner or the key on/off trick? What (if any) are the specific codes you were seeing?

 

he has changed lift pump which he has 12 to 14 lb. reman bosch pump, new sensors and still wont run

 

Who changed the injector pump? Did they know what they are doing? Have you/they bled the injectors?

Again, how did you read codes?

 

Is this truck stock? Programmer or Box?

 

Any updates??

 

sounds like he may have the injection pump off key or hes got a bad ECM

 

Sounds like air intrusion. When did he replace the fuel filter last??

 

Thread starter can reopen??