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10-4. Thanks guys. Water pump impeller is not turning when you turn the shaft. Looks like I found my problem.

I hope so. Running out of options.

Ok I'll give that a try. Thanks.

Nope and nope. EGR in place. Now I'm thinking the Tstat is working as I put in a 195 deg one. But still no heat from heater.

There are no leaks from the water pump like there usually are when one goes out. I dunno.

My wife got it to 248 deg when she ran in 4 low and that's when it seems the problems started. Top radiator hose is hot and bottom hose is cold.

206 deg. When normal is around 180. 2004 Excursion under normal driving conditions. It seems like the EOT is normal.

My 6.0 is running hot and I can't figure it out. I thought the thermostat was stuck because it would get hot and the heater was blowing hotter than usual. I changed the thermostat and now it still runs hot and the heater blows cold air now. Cooling system flush?