Troubled Duramax Posted March 3, 2021 Report Share Posted March 3, 2021 I have a 2011 GMC 6.6 Duramax four-wheel drive The front end is whining and I don't understand where it could be coming from. I have it in two wheel drive and the whining is annoying I put it in four-wheel drive the winding goes away. Quote Link to comment Share on other sites More sharing options...
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