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maybe someone can shed some light on this.

I have been hearing a strange frequency when I am going above 60 mph all the to 80 mph, I will try to explain the best I can. I thought

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		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain
maybe someone can shed some light on this.

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10-21-2015, 02:33 PM	#1 (permalink)
Apoc370z A True Z Fanatic Join Date: May 2011 Location: Orange County, CA Posts: 1,001 Drives: 2011 GM z34 Rep Power: 16	maybe someone can shed some light on this. I have been hearing a strange frequency when I am going above 60 mph all the to 80 mph, I will try to explain the best I can. I thought it was my exhaust that is causing the problem, but then I noticed the sound only appears when I am crushing or when I accelerate from 60mph to 80mph, basically instead of a constant (linear?) "exhaust" tone, it gets wavy. Wavy like it would go from low to high and low again. could be the engine or the exhaust but I can't pin point what caused it. it wasn't like this before so any help or info is greatly appreciated.

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