'01 X5: loud whistling sound in front of engine

Oct 29, 2006 1 Replies

'01 X5, 3.0L auto. On startup there is a loud, high pitched whining/whistling sound coming from the front of the engine. After warm up the sound generally disappears. Fan belts are new, ~4 months old. Could it be the water pump? clutch fan? power steering pump? All fluids are topped off.


"GTK" wrote

It's probably the air pump that only runs when the engine is cold.

FloydR

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