clspruiell Posted July 25, 2012 Share Posted July 25, 2012 I just noticed last night there is an intermittent squeal that sounds like its coming from up above the brake pedal. I opened the hood and heard something shutting on and off (every 10-15 seconds approx.). I think the two are related but not sure. When you're sitting in the driver's seat, it sound's like the sound is from within the cabin, but I could be wrong. Sounds like an actuator? Electrical. High pitched but not like a dog whistle. And it doesn't seem related to any driving actions! It happens randomly and consistently. Quote Link to comment Share on other sites More sharing options...
Mparent Posted February 9, 2013 Share Posted February 9, 2013 I saw a tip on another lexus owners forum that said it might be the actuators (potentiometers) that control the flappers that regulate how much hot/cold air goes through the controllers. There three, I believe. Mike Quote Link to comment Share on other sites More sharing options...
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