Can anyone help identify the problem?

Apoc370z · 04-11-2015, 11:38 PM

My exhaust (most likely the case) is making some very unusual frequencies when i am accelerating above 60 mph.

The best way i can describe it is that a normal exhaust tone should be a linear tone, as in from quiet to loud when i accelerate. But now it gives a wavy frequency even when i am just gently tapping on the accelerator.

It only happens when i try to accelerate while i am cruising on the freeway, usually when i am going 60 mph or so.

Actually let me rephrase that, it is letting out a wavy frequency when the car is on low rpm and cruising?

Memphis370Z · 04-12-2015, 12:25 AM

Interesting. Can you post a video?

falconfixer · 04-12-2015, 02:06 AM

Stock or aftermarket?

Apoc370z · 04-13-2015, 02:53 PM

Quote:

Originally Posted by falconfixer

Stock or aftermarket?

Fast intentions with 18in resonators

Apoc370z · 04-13-2015, 02:54 PM

Quote:

Originally Posted by Memphis370Z

Interesting. Can you post a video?

I will try to get a vid when I get the chance. I was hoping someone may be able to shed some light on this

Zbrah · 04-13-2015, 03:14 PM

Maybe be something came got loosened and shifted causing a slight rattles somewhere. Try checking your clearance at the heat shield, cross member and even at the rear bumper.

04-11-2015, 11:38 PM	#1 (permalink)
Apoc370z A True Z Fanatic Join Date: May 2011 Location: Orange County, CA Posts: 999 Drives: 2011 GM z34 Rep Power: 15	Can anyone help identify the problem? My exhaust (most likely the case) is making some very unusual frequencies when i am accelerating above 60 mph. The best way i can describe it is that a normal exhaust tone should be a linear tone, as in from quiet to loud when i accelerate. But now it gives a wavy frequency even when i am just gently tapping on the accelerator. It only happens when i try to accelerate while i am cruising on the freeway, usually when i am going 60 mph or so. Actually let me rephrase that, it is letting out a wavy frequency when the car is on low rpm and cruising?

04-12-2015, 02:06 AM	#3 (permalink)
falconfixer Track Member Join Date: Feb 2012 Location: 10aC Posts: 978 Drives: Taco Rep Power: 76	Stock or aftermarket? __________________ Bitch ex wife's scumbag lawyer made sure this went away.

04-13-2015, 03:14 PM	#6 (permalink)
Zbrah A True Z Fanatic Join Date: May 2013 Location: The370Z.com Posts: 4,956 Drives: 370Z Rep Power: 5452	Maybe be something came got loosened and shifted causing a slight rattles somewhere. Try checking your clearance at the heat shield, cross member and even at the rear bumper. __________________

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04-12-2015, 12:25 AM	#2 (permalink)
Memphis370Z A True Z Fanatic Join Date: Sep 2014 Location: Memphis Area Posts: 3,117 Drives: '09 MB Rep Power: 124434	Interesting. Can you post a video?