Question as I read this thread.
The EGR cooler still has coolant flowing through it...well as long as it is not clogged. Correct. So you still have the coolant pulling heat out of the EGR cooler...but it is dead ended?
Two...it cant have more heat coming into it dead ended as the hot gasses passing through do not in and of themselves cool anything..they are supplying the heat. I understand it is a dead end and so if no external cooling jacket was there then you would have a serious issue with dead end heat build up...but again the coolant still passes through....right?
Also the comparison above is comparing cold air moving into a dead ended room with no external cooling. Rather the comparison would be hot air passing into a room with an external cooling jacket and so...does it do a better job keeping the exiting hot air cool as it exits...or does it overheat the room as once it is a dead end. There is two different applications in this comparison since the primary purpose of the coolant jacket is to cool the gasses as they exit correct
...but they have been blocked. So...the coolant is now only really cooling the physical cooler itself...basically...am I correct?
It is like trying to take a hair dryer and blowing hot air into a soda bottle. Once the internal pressure of the bottle builds to a specific point the incoming air does not make it to the dead end it actually enters just a tad and is blown back out by the back pressure. Better yet..take an empty soda bottle and take a drag of a cigarette ( or a blunt if you like) and try and blow smoke in the bottle and see what happens..verses if you cut a hole at the other equal the size of the bottle mouth.
I am not trying to argue...rather just trying to get an accurate idea of what is going on with the EGR cooler dead ended.
So the only possible gain is by preventing hot gasses from EXITING the EGR cooler and going to...what...I forgot...thought it was the Turbo but I have not torn into mine and my 7.3 did not have the [email protected]
The cooler still has to pull inductive heat from the cooler so there would be no gain from a coolant side...but probably not an issue to begin with.
I would have thought that if a $75.00 plug would do the same as a complete delete then most people would have gone that route?
I suppose the answer is from someone who runs a plug and what have they seen.