Noise from Idler Pulley on Saab 9-5

The idler pulley for the serpentine belt can fail causing noise from the belt area. Our technicians report the pulley has been known to fail completely which can cause the belt to break or be thrown off.

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Average mileage: 93,710 (25,000–125,000)
Engines affected: 2.3L 4 Cylinder Turbo, 3.0L V6 Turbo, V6
9 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2006, 2007
24 people reported this problem
7 people shared problem details
2003 Saab 9-5- 2.3L 4 Cylinder Turbo123,741
out of the blue a noise began under the hood at start up and when idiling. Found it was the idler pulley.. Get it checked as it can snap off w/o warning.
2000 Saab 9-5- 3.0L V6 Turbo105,500
Idler Pulley squeaking, put WD-40 on it which did make it stop squeaking, but I fear the bearings are going to lock up and break the belt. Part is $50-$75 with it costing about 1 hour labor to put it in or do it yourself. Last few days on cold start engine idles very rough up and down between 1k-3k rpm then dies, second start idles rough for a seconds then idles / drives normally.
1999 Saab 9-5- 2.3L 4 Cylinder Turbo90,000
Don't wait.... I waited and paid
2000 Saab 9-5- V6100,000
Loud screeching noise now loud ticking noise coming from under the cover where the timing belt pulley is. Going in to the shop Monday. Uggg!
2001 Saab 9-5- 2.3L 4 Cylinder Turbo106,000
Idler pulley bad the belt was being cut. Loss of power steering. Belt and pulley had to be replaced.
Same thing happened on my 9-3, Had the pulley and belt replaced, I spent about $150.00 parts and labor. Now I'm repeating the process with my 9-5.
Idler pulley started making noise, especially when cold. I made an appointment to have my mechanic fix it but it broke. Now I will fix it myself this weekend.
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