Mizzou Posted August 26, 2014 Share Posted August 26, 2014 I recently purchased a 2011 GS 350. Nice car but it makes a constant ominous sound when the engine is running. It is a low pitched rumbling that sounds like a bad bearing on a fan. The noise frequency is constant e.g. not affected by air conditioning fan speed. The noise persists for about 1 second following turning the engine off. I equate this to finding a lump in my neck. No problem now but it CAN'T be a good thing. Thoughts? Quote Link to comment Share on other sites More sharing options...
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