White Exhaust Stack

[kenneth worthington isx2350]

Thanks for the reply Rawze. You da man! We’ve replaced all the sensors. That was one of the first things I did when we bought the truck. When we had the overhead done Cummins said the injectors were good, however they also thought the fuel pump had been upgraded. We called the previous owner of the truck as well as the salesman who sold it and the pump has not been upgraded. We’re going to make a few more calls tomorrow but we’ll be definitely upgrading the pump ASAP. Any pointers before we get it done or any specific questions to ask? Any idea how long the upgrade takes as well as a ball park cost of the upgrade?? Thanks a million!

TJ