I have a 02 LS V8 with 152k miles (bought with 149k) and under full throttle at about redline, the transmission stays at redline for about 3 to 4 seconds then shifts instead of shifting quickly. It's almost as if it gets stuck. I've had the transmission fluid and filter changed at a Ford/Lincoln dealer at 151k. It did this before the trans service. I tried searching throughout the forum but didn't find a thread with these symptoms. Has anyone else experienced this or know what the problem might be? Any help is appreciated.