Don W.
Stab it and steer it
For a while now I've had a whistle that came on with boost. Finally on a hunch I disconnected and plugged the connection to the HVAC system. Whistle gone. Haven't done anything else yet but I assume it's that check valve. Bought the silicone kit awhile back but apparently the valve is either bad of has something in it.
Anyway, what's a good replacement?
TIA
Anyway, what's a good replacement?
TIA