I dont see a tsb number on it yet. All I have is a printoff. I think my manager gets the tsb's early or something, not sure. It says "engine lacks power. hesitates, and/or stumbles on hard acceleration and/or loses some power after high RPM cruising in high temps."
says a wiring variation at the coolant charge pump wire connector that may reduce coolant flow from the pump.
All it says for a fix is inspect the wires and switch them if necessary. dont know if a different fix is coming or anything...
Disconnect the elctrical connector on the supercharger coolant pump. the connector cavaties are id'd by a number (1 and 2) that is cast into the side of the connector body. the negative wire terminal (black with white stripe) should be in cavity number 1. the positive (black) should be in #2.
if you attempt to fix this yourself, it recommends you use GM tool # 12094429 to pull the pins out of the connector. most people wont have this but gm dealers will. all it says to do is switch the wires if they are infact crossed.
this is only on 04-05 (duh

)