I have a 1998 Pontiac Grand Prix GTP, with the supercharged 3800.
I recently made a trip from Meridian, MS to Cincinnati, OH, and back again (roughly 600 miles one way). With the car being relatively old now, and having over 220k miles on it, I was a bit concerned about her making the trip. She did great the drive up and back, until I turn onto my road and am literally less than 1/10th of a mile from my drive way.
I slowed down to turn onto my street, while coming out of the turn and accelerating, there was a loud "clunk" type of sound from the front passenger side. The car "bogged" down (by which I mean the RPM's dropped, lights dimmed, power steering was affected etc) and almost went dead, but immediately caught back up and kept running. Needless to say when that happened I stopped, to make sure nothing weird was going to happen. I noticed a slight "roaring" noise coming from the car now that wasn't there before. So I "limped" her the 1/10th of mile to my car port and popped the hood to check her out.
My immediate thought was a bearing from a pulley had gone out. I visually inspected the belt and pulleys with the engine both off and running. There was no wobble or "dog-tracking" on any of the pulleys and the "roaring" sounded like it was coming from higher up. The closest I could pin it down to was from somewhere around or in the super charger.
I know little to nothing about super chargers other than the general theory behind how they work, but certainly nothing along the lines of their internal workings etc.
TL;DR: "Roaring" noise apparently coming from the super charger.
My question (after that really long story): Are there components inside of the super charger that could fail and cause a "roaring" sound? If so, what potential damage would this cause to keep driving the vehicle (not referring to damaging the super charger further as it was not maintained properly by the previous owner and was on its way out anyways)?