I have intermittent issues with harsh shifting in gears while driving then not having the issues when I turn the car off let it sit for a little while. From what I have read and looked at its possibly the PCS solenoid in the tranny since this is a common issue with our cars. I was wondering if anyone has replaced the PCS solenoid before and if they have instructions and or advice to do this. Or should I just bring it to a tech?