DieselLady_
When you pulled you DPF and installed new exost , did it cone with a fooler box and did you get any codes. I have a 7. 5, 6. 7 with juice with att. and have not had any codes as yet but the EGT scare me. Emty I can hit 1450 on Donner. and it is not in regen. Did you get a drop in EGRs and what codes. where do I get exost from header pipe back and do I have to weld in bungs. I have bolted flang at the botton of the header pipe and was going to remove everything from there back. Any help on suplyers and codes will ba a help. I think my Juces will Kill any codes but not shoure. I could set it to clear all codes at start up but this is a pain in the&^%$^%&*l
Thanks Harlan:-laf
Yes I got the 5" Turbo back exhaust with fooler and yes it will still throw a code so you have to set the juice to clear codes on startup. I think the very high EGT's are coming from the EGR. You can fab some blocker plates for where the EGR meets the intake. Use the gasket for a template. Remove the butterfly valve inside the intake. (this is mandatory, you must remove butterfly in the intake or you will create many problems. ) The two screws holding the butterfly valve to the cross bar are "mashed" on the end, so you will need to take a small grinder to grind the threaded tip off a bit or else you will break the screw in half when you remove them. Best thing to do is to remove the entire intake manifold for easy access.
when you reassemble it leave the brown connector that goes to the EGR valve on top of the intake, unplugged. I recommend undoing the neg battery cables while you are doing this. Not so much because you will do any damage if you leave them on, but sometimes the computer keeps a memory and it will surge real bad. Removing the neg cables clears all the values it has stored and will prevent that from happening. This happened to me twice before someone told me about it. AND YOU MUST SET THE JUICE TO CLEAR CODES ON START UP OR YOU WILL SET CEL.
If you consider how hot the exhaust gas is and that they dump this hot gas right into the intake you have to know how much this contributes to the high egts that we see in the 6. 7. The higher the egt's get the hotter the gas that gets reintroduced into the intake which makes the egt's hotter still. Visious cycle.
Sorry to Hijack the thread. Got carried away.
BTW... . the first time I removed the DPF, I just unplugged all the sensors. Not surprisingly the CEL came on right away and the engine de rated within 100 miles. After about a week, I got sick of the low power and put it all back on. Had to go to the dealer for the G-30 recall and to get the final 2 codes to go away. They told me I needed a new DPF because it said that it was totally clogged. I knew better because I had it off for almost 2 weeks. They have a protocol to follow and they don't know how to do anything else. So the guy with the Cab and Chassie may not have any problems at all. He may just need to clear the memory like I had to do, to make the codes go away. This forces the computer to relearn and "not make assumtions" so to speak.
I have no faith in the Dodge techs. They only know what they are told, and Chrysler tells them nothing.
