serpentine belt pulley squeals

pgregston · Post by **pgregston** » 01 Jan 2011, 18:19

92 960 wagon just started loud squealing from central pulley attached to tensioner, when idling or off throttle. Can this be lubricated? Tensioner adjusted?
Thanks!I

DanR · Post by **DanR** » 01 Jan 2011, 21:44

You also need to verify that the noise is not coming from the timing belt system.

Take off the serpentine belt and start the engine, if there is no longer a noise than it is the serpentine system and not the timing belt system.

Make sure, because it is a interference engine, and a broken timing belt will cause the valves to be bent.

DanR '94 964 356,000 miles (122,000 on the new engine)

pgregston · Post by **pgregston** » 02 Jan 2011, 13:01

It is definitely the pulley on the belt as I can change the sound by pushing on the tensioner. What is this called in the parts catalogue?