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cavmar - if you are handy with a 10mm and a 24mm spanner, remove the poly-rib belt that drives the alternator, power steering, water pump and A/C and run the engine for no more than a minute or so (no coolant flow).
If the whine stops, then you know its any one of the above accessory's or the belt pulley's / tensioner that's causing the noise.
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2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
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