HHR/OnStar Alternator whine
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HHR/OnStar Alternator whine Popeye2 12-15-2006, 10:03 AM
Looking for 2006 HHR's with OnStar. Anyone experiencing what sounds like an alternator whine / whistling noise from speakers only when using OnStar ? The noise is affected by pressing on accelerator, goes away when OnStar call is ended. esmarkey 08-06-2008, 02:09 PM I had a similar problem with my 2007 HHR when listening to the XM radio. I had the dealer replace the sending unit on my drive by wire throttle control and that fixed it. Simular to what you mentioned I noticed that increasing throttle increased the whine, this happened even with the engine not running, but the key in the on position. Hope this helps. Related Links Enter the largest automotive community on the planet! |