'01 X5: loud whistling sound in front of engine

External Since: Dec 11, 2005 Posts: 3

'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.

External Since: Sep 09, 2005 Posts: 298

"GTK" <gkucera DeleteThis @yahoo.com> wrote
> '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.

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

FloydR