ok i have the 07 Silverado 5.3 new body. I'm going through the same issue motor hot a/c turned off. well i have replaced before all this started replaced the rad cause it was cracked replaced the temp sensor and the stat. and still having the problem now i don't even have to have the truck running and fans start full and says reduced power. took it to a dealer i was told my dash cluster is sending false codes/signals to the ecm. waiting tell wed. to have the new cluster put in and programed to the truck. anyone else have this of feel this is possible..
