Whirring noise like a bus

scottyjohn · Nov 24th, 2020, 21:31

Hi all,
Just had new tyres fitted on the front of our 2004 xc90 and was driving fine, however, today it started making a speed related whirring noise from the front end, think it makes it under acceleration and possibly both directions. Sounds like the noise from a bus??
Any ideas what could be causing it?

owenfackrell · Nov 24th, 2020, 21:43

When the bearings in the idler pulley go they can make a whirring noise. When this has happened to me you can hear it with the bonnet using at idle and definitely goes up with the engine revs.

Nov 24th, 2020, 21:31	#1
scottyjohn Member Last Online: Jan 14th, 2024 11:22 Join Date: Aug 2015 Location: Glasgow	Whirring noise like a bus Hi all, Just had new tyres fitted on the front of our 2004 xc90 and was driving fine, however, today it started making a speed related whirring noise from the front end, think it makes it under acceleration and possibly both directions. Sounds like the noise from a bus?? Any ideas what could be causing it? __________________ John XC90 SE 2004 D5 163HP - Blue

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Nov 24th, 2020, 21:43	#2
owenfackrell Premier Member Last Online: Feb 4th, 2024 19:04 Join Date: Dec 2009 Location: southampton	When the bearings in the idler pulley go they can make a whirring noise. When this has happened to me you can hear it with the bonnet using at idle and definitely goes up with the engine revs.

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