If it smokes without a "chip" it might have a failed injector.
Best bet is going to be to plug a chip into it. Get a lot more power out of her, and lots of smoke!
The 5.9L Cummins does not have EGR
5.9L 24 valve Cummins5.9L 24 valve Cummins
Cummins is good. Dodge is not. Cummins has always been a good engine. Dodge is lucky to have the contract with Cummins. I have 2 Dodge Cummins (an 1992 and 2006). Both have electrical problems and the transmission in my 2006 isn't great and that's with stock power and only 93,000 miles. The 12-valve Cummins is all mechanical- easy and cheap to get power out of it. The 24-valve Cummins is computerized- have to buy a programmer. The best combination would be a Cummins in a Chevy.
The Cummins in a Dodge truck did not get EGR until 2007 with the 6.7L.The Cummins in a Dodge truck did not get EGR until 2007 with the 6.7L.
The Dodge truck with the 12 valve did not have one. The 24 valve did.
1997 Dodge diesels come with the 12 valve cummins engine. It is fully mechanical and does not have a camshaft position sensor. "Dodge cummins diesel forum" is a good resource for dodge cummins owners.
The 2004 Cummins does not have EGR.
5.9L Cummins 24 valve
94-98.5 dodge cummins 12 valve
It requires a "tuner" or "hot box" to reprogram the computer on a 24 valve Cummins.It requires a "tuner" or "hot box" to reprogram the computer on a 24 valve Cummins.
1998.5, or any 24 valve engine.