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Old 08-13-2018, 12:41 PM   #7 (permalink)
Junior Member
Join Date: Aug 2016
Posts: 4
Default Defective Valve Cover Causes Whistling

I noticed an audible whistling noise (mechanical not rush of air) several weeks ago. It became louder and when the engine was turned off it whistled at you for about 5 seconds. My dealer , Norman Gale Buick/GMC has been great and believes the problem is a defective valve cover. The trouble is that there are none to be had. The part has been re-engineered and is being produced in China with a ship date in late August. Probably won't arrive in the US until weeks later. It may be that the Cascada sits at the dealer for what could be 6 weeks or more. I was handed the keys to a new GMC Acadia so I've not really been inconvenienced -just puzzled and annoyed at why GM hasn't done a recall. Heads up out there. I can't be the only one. I can't stress enough now accommodating my dealer has been.
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