Not on my car, but Joel'* new Regal started making this noise on Friday, So today I removed one belt at a time.
Removed the supercharger belt, noise was still there, removed the accessory belt, noise was gone compleatly. I changed 1 litre of power steering fluid just for kicks, that didnt help. All of the pulleys feel great, no grind, no back and fourth play. The AC compressor when the car is off is obviously not engaged, so I couldnt tell.
Car running, normally with the AC off, the noise gets louder, AC on it seems not to growl as bad, except for this time, it growled alot.
So, Gearheads, what do you think?
Damien-they don't make them like this anymore
97 SSEi. 3.2mps,msd,optima,1.9 YTs,245 RE750s,SLP Headers,custom ported SC inlet/outlet, 180 deg, INTENSE pcm,42.5#injectors,255lph pump,custom soilid motor mount, 3.0 mps(maybe), and the nut behind the wheel.