Polishadrian Posted April 27, 2022 Share Posted April 27, 2022 Hello, first time poster here. Today my wives 2005 Lexus GX470 started making a weird humming, compressor like noise every time the car starts up. It happens whether I put the key in the ACC position or turn the car on completely. It goes for about 20-25 seconds and then stops. I turned the radio off and the air and the noise continues. I was hoping to see if anyone has ever dealt with anything similar and what they ended up replacing to solve the issue. Any help is greatly appreciated!!! IMG_3420.MOV Quote Link to comment Share on other sites More sharing options...
ZekeInCBus Posted May 22, 2022 Share Posted May 22, 2022 I noticed the same thing today. I hope someone has good info. Quote Link to comment Share on other sites More sharing options...
RX400h Posted May 22, 2022 Share Posted May 22, 2022 The next time, open the hood before you start the engine. If there is a serpentine belt that is worn enough, a noise similar to what you describe may occur until the belt warms up. 1 Quote Link to comment Share on other sites More sharing options...
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