High pitched whine
I have been noticing a high pitched whine coming from the dash when the blower fan is set to low. It is most noticeable when the fan has been on the low setting for a period of time (10 or so minutes and longer). Unfortunately, it is not clear cut reproducible. It seems to occur about 90% of the time.
The high pitch whine is noticeable even with the stereo on a low setting. If you move the fan up to med or high, the high pitched whine seems to go away. I cannot tell whether the noise is lost in the fan noise, or if increasing the revs of the fan stop the noise.
Has anyone else experienced this?
I am starting to think it might be a bearing issue with the fan.
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2004 Toyota Tundra DC, Natural White, SR5, V8, 4x4, Remote Start, Lexus ES Navigation, Eclipse BEC106 Backup Camera, Voice Guidance, Anytime Navigation, Anytime Camera, EC Compass/Temp mirror, Osram Silverstar + 50's, Lexus GX470 17" rims
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