Ok, I still have this problem. It runs strong when cold but as it reaches normal operating temp, it seems to bog down when the accelerator is applied medium to hard. I have learned to back of the accelerator just a bit and the hesitation goes away, as long as I apply the accelerator slowly thereafter.
I Changed the following items: Fuel pump, Coolant temp sensor, Air flow meter, intake manifold gaskets, water pump, fan clutch, fuel filter, all vacuum hoses, Spark plugs, compression test good, and Idle air control valve tests good.
I have searched many many blogs, forums, etc, and have not found the answer to the problem. Surely someone out there has had this problem. Please help, I've been dealing with this problem for over a year and it bites. btw, I have not had any codes.
Thanks in advance
Dave
Maryland