No Power at 40-60 mph

[07jeepster]

I have a 07 4 door that seems to lack power in the higher speed range 40- 60. Even with the 4.10 gears, it seems to struggle and then downshift. The recall on the reprograming helped a little but not completly. Anyone else having this problem?

[ZoSo-Green]

Yeah, I have that dead spot also. I am going to try an AIRAID throttle body spacer and cold air intake kit. BUT more than likely it is in the valvetrain. I dont think it is a problem, just a bad cam choice for this motor. I feel it in every gear around 2000 and 3000 rpm. DC was probably trying to get every mpg possible. Hopefully in the near future aftermarket performance camshafts will be available.