The fan blades are most likely rubbing the sides of the heater casing. The fan could be loose, the motor bad, or the fan blades broken. There is also the chance that something (candy wrapper etc.) has been sucked into the system and is rubbing the blades.
When there are loose parts in the fan that runs the heater system, there will be many instances of noise and vibration. A technician should dismantle the system and fix it.
its your squirl cage inside of your blower motor. guaranteed. happened to me twice
I have a 02 Sedona and I think I'm getting the same noise. It happens when you are driving and it sounds kind of like one of those slide whistles. I think it only happens when the A/C is on so that leads me to believe it is a vent or something that automatically opens and closes. Or maybe it's a ghost. i also have an 04 sedona, and i frequently get noise which seems to come from the a/c heater motor. I had that problem also on my 2004 Sedona EX and had it repaired at dealer. They replaced the rear AC purge/evaporator. Thank god for the warranty! They told me the noise complaints are similar to a ghost, siren, or motorcyle accellerating noise.
Noise is air vibrating. NOW EAT SOME CHEESE!
A 2006 Kia Sedona will exhibit a growling noise from the engine if the serpentine belt is loose. It can slip against the pulleys and produce a persistent growling noise.
you may have leaves in the fan
A male cicada has drum-like organs in its abdomen that produce a high-pitched drone similar to a loud vibrating noise.
it means yur heater needs to be cleaned out becuase of the vibrating noise that comes from it when its off to long dogs can sense that and it irratates them
they dont really make a sound. it is mainly a vibrating noise which i guess could be classed a a noise. :)
Sounds like the fan for rear air/heater. usually found behind the inner cover.
It may not be the fan making "more" noise when you turn on the lights. It may actually be the bulbs making noise. Incandescent bulbs when operating on a dimmer make a high pitched noise - it is the filament vibrating. Try just the lights without the fan and see if you hear anything.
dead battery