Some really good info here. My local Mech-an-ic says NOT to remove the EGR cooler as it will help the engine heating process in extreme cold we get here in the winters. Is there any truth to this? Haven't heard of this before anywhere. Or is he just too lazy to remove it?
The tune would prevent the EGR from operating, short of it being physical mass on the engine that could heat soak i see no way it would make a difference. As stated above, he is likely talking about the grid heater, which you would delete if you did a Y bridge install, but would NOT be deleted with a blocker plate and up pipe install. It sits just behind the throttle plate on the top of the engine. You can see it if you remove the black plastic intake tube (the one with the twist lock)
image borrowed from a different thread:
2015 Chevy Silverado 2500 HD 6.6L LML
Allison Transmission (stock)
Last edited by J83; Today at 02:13 PM.