Matt_Chaps Posted June 25, 2021 Share Posted June 25, 2021 Took my 3.4 S for a spin tonight and noticed a whistling coming from the engine, matches revs - higher the revs, higher the pitch…and then whistles all the way back down the Rev range as you’re off the gas. It wasn’t there before when I drove it back from purchase. It sounds like air escaping through a tiny crack but def not AC or vents. Coming from the rear in engine bay. Anyone had this before on their Cayman? Any help is much appreciated Matt Link to comment Share on other sites More sharing options...
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