Quote:
Originally Posted by JB1
So did anybody else hear about this TSB? I have the exact same high pitched noise problem, but last time I visited my dealer, they didn't know about any TSB yet. The tech did hear and confirm the noise though. It is starting to drive me nuts. It's exactly as described before, turn my head to the left and I hear it.
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Solution: add CBE to your HFCs. Louder exhaust = less high pitched noise noticed.
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2013 Cadillac V-Wagon, RIP Z
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