So by chance have you had your supercharger pulley off at all during this time? I only ask as I’ve changed my SC pulley bearing twice just as preventative maintenance. Most videos I’ve watched of the SC pulley coming off is for the M113K which always comes straight forward and smooth without much fuss at all. Now for my experience with the SRT6 -M112K and the factory SC pulley isn’t as straightforward a pull and there is not as much space as the M113K to remove it. So both times I’ve tried and tried to pull straight out but it won’t go. I’ve for lack of a better word had to walk it off the shaft. The first time when I had changed it I thought everything went well it went on smooth and everything looked copacetic. Then it started having the problems you describe which is the classic original ICP failure which is Bosch last 3 numbers part# 003. So I took that as the problem and ordered the newer Bosch #010 IC pump. While I waited for the part I combed through the forum and after reading up my symptoms weren’t exactly as the failing pump but that of an improper SC pulley and magnetic clutch gap. I took the belt off and was looking at the gap and on top it looked fine but when looking at the SC pulley from the side the bottom was way off and was causing the problem. Basically the SC pulley wasn’t set properly and the gap at certain points would be out of reach for the magnetic clutches range. You’d think with the amount of force that clutch can pull it would have lined the SC pulley up or the belt would’ve done similar. So I took a rubber mallet literally hit it once and I saw as I heard it pop down into place. Belt back on and everything was back to working order. I was extremely lucky that I didn’t snap or stretch out the dog leg springs from the SC pulley. Just an FYI I still changed to the newer pump. Sorry for the novel just wanted to give some more insight into this