Car is a 1999 Saab 9-5. Sump has been previously dropped and no sludge found. has current pcv #6 and serpentine belt assembly has been changed out within last year except the top idler pulley by the alternator. 153,xxx on the car
Car is making a weird howling or whining noise from the passenger side of the car near the serpentine belt area or the engine mount. Started out as a metal sound of something clanging and after some driving over a day or two has developed into this noise. Makes the noise at idle and while driving. Quieted down some after driving 15 minutes. Used to be loud enough you could hear it at 20mph in town.
Is this something in the timing chain area going wrong? or maybe the one idler pulley that i didnt change? Or a vacuum leak somewhere?
Here is a short vid of the noise.
1999 Saab 9-5 howling noise - YouTube
Thank you for any help.