First off I'm aware there are threads on this issue, I think ive read them all. I'm merely looking for some sort of conformation on the problem I'm having. Prepare your self for a lengthy story... So I have a 2003 LS V8 Sport with 64500ish miles. I've owned this car for the better part of a year. On my way to work without warning other then a slightly hard shift from park to drive since I've bought it the car began to shift from 2nd to 3rd extremely hard and also the 3rd to 4th shift would act like it was slipping. When I first got this car home i replaced all 8 coils and plugs, valve cover gaskets, and dropped the trans pan and replaced the filter. At that time I had also bought the trans solenoid pack knowing it was a common issue with these cars, I intended to install it but couldn't get the connector off at the time and skipped it. Flash forward to today, with my current issues I thought for sure it was the pack. Replaced it, and nope. The same issues are there! Unchanged! There's no metal on the magnet and no evidence of mechanical damage. I did the computer reset procedure and followed the trans fill instructions. I'm leaning towards the pcm being the issue, so please if anyone can shed some light on this and help confirm it would be much appreciated.