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2012 GL 450 (X164), AC Compressor Fix now there's engine noise heard inside car

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Old 10-08-2021, 01:39 PM
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2012 GL450, 2013 Lexus GS350 F-Sport
2012 GL 450 (X164), AC Compressor Fix now there's engine noise heard inside car
We got our 2012 GL 450 (X164) AC Compressor fixed a month ago and noticed a "whirring" engine noise coming from within the cabin of the car (it cannot be heard outside). The noise reflects the engine's RPM when we accelerate. Is it a loose pulley?

Anyone have an idea what it is? Our mechanic can't hear it and I think he's trying to avoid fixing it.
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Old 10-08-2021, 01:55 PM
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Now just one GL450 with EORP.
If it appears to be coming from
the speakers - have you changed spark plugs lately?

record and share if you can.
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