I posted about this awhile back, but gonna take another stab at it in case some new members may have an idea. 2017 Elantra GT. When accelerating from a stop, a whistle/whine noise is heard. You can also hear the noise at idle if the rpms are around 1000 RPM. Very noisy at parking lot speeds. It sounds it’s coming from the intake manifold. Since my last post I have swapped parts to try to fix the issue since the dealership wouldn’t help. I’ve swapped the throttle body and intake manifold and also checked belt tension. Still the same. Anybody else have this whistle/whine noise when accelerating and idling?