Hi All-
I've got a whistle in my wagon... It's only whistles when the motor is very lightly loaded. If the AC isn't engaged, it will not whistle at idle, but when the AC engages, or you're cruising on a flat road at 30-40mph (2-5% throttle maybe?) it'll whistle. Open the throttle past 5% ish, and it goes away. The whistle doesn't seem to be tied to speed, gear (AT), weather, and hasn't changed in the past two years... It does seem to be coming from the intake manifold area of the car (no gross intake leaks, checked by spraying carb cleaner everywhere - no; it didn't cach on fire either).
Anybody have a clue as to what this could be?
Thanks, Miles