zek7717 Posted February 7, 2012 Share Posted February 7, 2012 I have a 2008 SC430, 35,000 miles with a constant fairly loud humming sound coming from behind and to the left of the drivers seat. Just had fuel pump replaced to no avail. Sound is constant with engine on. Does not change with movement or engine speed. What do I need to look for? Quote Link to comment Share on other sites More sharing options...
TYM Posted June 2, 2012 Share Posted June 2, 2012 Have you checked if the lumbar support button is stuck in the driver's power seat controls? Quote Link to comment Share on other sites More sharing options...
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