99 boxster - white smoke, belt squeal

[Trey T]

Sounds like the AOS

1. Change out the AOS and make sure to buy the most updated AOS.
2. Check oil level. If your dash says low, shut it off.
3. Inspect the squeal; open the engine covers (in cabin and under clamshell conver. top). The squeal could be something simple like belt, roller, etc...

[healthservices]

The squeal could be the AOS itself, basically a broken diaphragm that is now making noise since air and oil is being sucked into the intake track.