02 yukon shutoff

[cashflow50]

Was told to clean tb but still having problems its a lot scary when u lose power at 70 in the fast lane. Any help would be great.

follow NJTahoe's directions. I had a similar situation. I went ahead and disconnected all electrical connectors within the engine bay, and sprayed / greased them up. Next I did what NJTahoe did and checked the grounds, especially the one on the pass side of engine block.
The electrical connection I really payed attention to was the TPS. I heard the yellow wire tend to break easy. Use the tug check on it. After all that it fired up easy and no problems after that.