Sensors before and sensors after demandy?

[JimT]

(03-24-2021 )tree98 Wrote:  

(03-24-2021 )Wildcard Wrote:  I now operate at t stat temps unless under heavy load

Not sure what your talking about with that statement??

I think what he's saying is that coolant temps are rock steady at the low end of the operating range, about 180 or 190.

To answer Wildcard's question, yes, they probably are engineered to dissipate heat slightly more quickly with the EGR, though with EGR being around nearly 20 years now it would be nearly impossible to make a fair comparison (not to mention the differences in vehicle designs). However the only practical difference is how much the thermostat opens up and how often the fan might need to kick on.

After my cm2250 was demanned it was rock solid at 190 unless I pulled a big grade. (basically if you keep the boost under about 20psi max) Since the inframe, and the new thermostat that came in the kit (as well as a new oil cooler), my temps have been running steady at 180. Also, it should be noted that I didn't block off exhaust gases to the EGR cooler until I did the inframe, so that might be part of the difference too. Oddly enough after draining and refilling the coolant a few weeks ago the temp is now sitting at about 177-178 instead of 180. Comes up to temp normally and then operates normally, rising and falling as expected with engine load and ambient temps.