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must be the blower motor. it usually get dirt stick on its rotors and that makes a weird noise too
I thought his sound was a little softer than the blower motor cricket noise, but you might be right. If so, I just wrote a post about blower fan today and my method of cleaning it through cabin air filter housing...I think I picked that trick up from here.

If you need more details, let me know!
 

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Discussion Starter #5
I thought his sound was a little softer than the blower motor cricket noise, but you might be right. If so, I just wrote a post about blower fan today and my method of cleaning it through cabin air filter housing...I think I picked that trick up from here.

If you need more details, let me know!
Yea pm me the link.


Sent from my SGH-T959V using Bimmer
 

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Easier to tell you...

Remove cabin air filter and leave housing open. Open up all vents and turn fan on high. Windows all open too.

While it's blowing, you blow into the vents from the engine side...trying to kick off whatever dust might have accumulated and be 'off balancing' blower fan. I changed vent positions, varied the speed of the fan while blowing from the other side. I had my cricket sound starting. This stopped it.

I used a wet/dry vac as blower, but compressed air would work too...just easy on the pressure with compressed air, as you don't want to blow anything apart!

Anyway, I did this about a year ago, and so, for me, this worked. Hope it does for you too...but I still think it might be the fan sucking air in so it knows the cabin air temp...the tiny louvers in climate control...1/2" diameter circle with tiny louvers. Search on that. Also search chirping or cricket noise...bet there are many threads on that...some might have other sources/solutions for you.
 
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