Hello again all, I've been absent for a while, but proud to be back with a new bird. I just picked up a 97 4.6 single owner for 1600 with some minor need of attention. I'm encountering some oddities that I want to bounce off the experts here. I'm having a small series of problems that I think can be interlinked, but maybe not. Initially, it was cranking a lot before starting, hesitating when hitting the gas, and shifting at what feels like preset points, with no regard to throttle position. The hesitation decreases a little once I'm in gear, but I can't punch it and expect to take off. I did replace the TPS, and now it starts much quicker but still hesitates. I also cleaned the MAF sensor, but that didn't help. It actually stops hesitating if I unplug the MAF, so I'm a little puzzled. I sprayed around for vacuum leaks, but found none. So a tune up might be in order, but what other things help dictate the shift points? I do get the TC shudder from time to time, but it still shifts with no regard to throttle level. Any ideas?