High pitched whistle from enviro control system
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Lead Lap
Joined: Jun 2008
Posts: 781
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From: PA
High pitched whistle from enviro control system
I am experiencing a high pitched noise, almost like a whistle, coming from the environ control system in my '07. It is constant and doesn't fluctuate with the fan speed. It is definitely linked to the control system since when I turn the system off the noise stops. Anyone else ever experience this? At first I thought it was coming from the voices in my head, but my wife confirmed they weren't causing it 
Lexus Champion
Joined: Aug 2006
Posts: 12,554
Likes: 278
From: Illinois
I am experiencing a high pitched noise, almost like a whistle, coming from the environ control system in my '07. It is constant and doesn't fluctuate with the fan speed. It is definitely linked to the control system since when I turn the system off the noise stops. Anyone else ever experience this? At first I thought it was coming from the voices in my head, but my wife confirmed they weren't causing it
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