hesitation at take off/ 2006 Yukon Denali

[Tawas23]

MY 2006 Yukon Denali has a hesitation/stumble at only takeoff ..only sometimes ..no check engine light ..so no codes ..runs great other than that ..has 104000 miles has done this since I bought a year ago like I said only sometimes ..hard to fiqure out any ideas please help..like a pause with petal down or not about 2/3 seconds then lanuches if petal is floored..6.0 engine

 

[Tawas23]

can anyone help with this problem... lead me in some direction ?????????

 

[OHSIXX]

Maintenance history?
Do plugs, wires, and clean MAF.
Clean throttle body.
Maybe do a bottle of injector cleaner or run some premium thru it.

Lastly..maybe fuel pump but I doubt it..just a thought.

 

[Tawas23]

I cleaned mass air ..throttle body..all intake air cleaner parts ..EGR valve ..new plugs ..ran seafome in gas tank ..and still has a complete power drop/dies/..ONLY sometimes at take off..about 3 seconds then all good ..runs fine after that ..any other ideas please..any part know to go bad on the 6.0 that would cause this take off power loss for a 3 second delay