HVAC whistling sound

[Dreamer]

Any update because I can hear a high pitch sound from my sr5

Sponsored

 

[tacorancher]

Mine did this for the first time tonight with the heater / upper vents (I’m at 7k miles). It also seems like the airflow is restricted. I do not want my dash ripped apart. If it’s intermittent I’ll live with it. How annoying. Anyone have an update on this issue?