Archived Truck is missing need help

[RodeoSI]

I am lost too. However the dealer did do a new PCM update but was told that the PCM has no real effect on driveability issues.



The also reflashed the ECM there were no new updates from the last time. Was also told that sometimes the new update are not always the best thing to do. But they can not go back to the original. (I have also read that somewhere on this site. ) If I need to replace the ECM should I go with a catcher that I have been reading about? Dodge tells me it big money to replace the ECM



I was told today that the check valve in this pumps are not new with the pump and therefore I have the same valve that came with the orginal pump. I am head to replace it now $21 from cummings. Would this cause a problem?



Also headed to recheck lines, tank, and fuel pressure.



Batteries are good and grounds were taken apart, cleaned wire brushed and reconnected.



(All I need for Christmas -- a running truck, fuel pressure gauge, an aftermarket fuel pump... ..... )

 

[DieselMinded]

MAybe replace the MAP SENSOR ???



Im not sure at this point



For christmas you should ask for FASS and a Fp gauge and also a Cummins mechanic as a stocking stuffer. :>

 

[RodeoSI]

I think that we found the problem. Last night we ran through all the fuel lines. Fuel pressure was good. Turns out to be the number 3 injection tube had a chiped tip. This must have happend a month ago when they were replace and never noticed it as much with the stock injectors and a bad lift pump.



I say we think because I did not have another injector tube so we moved it to number one so it would be easier to get to. But it all makes sense. I had two people say that number three was acting up when they did a cylinder kill test.



I will change it out Thursday.



Thanks for all the help

 

[DieselMinded]

CONGRATS



glad to see you got er' figgered out.



DM

 

[Oil Burner]

was the chipped fuel tube the problem? I am going through the same thing now.



Thanks,

Jason