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serpentine belt pulley squeals

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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pgregston
Posts: 12
Joined: 23 August 2010
Year and Model: 92 960 wagon
Location: SANTA BARBABRA

serpentine belt pulley squeals

Post by pgregston »

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
Posts: 68
Joined: 17 February 2007
Year and Model:
Location:

Post by DanR »

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
Posts: 12
Joined: 23 August 2010
Year and Model: 92 960 wagon
Location: SANTA BARBABRA

Post by pgregston »

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?

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