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V35 6Mt Metal Vibrating Sound?

MDV

By MDV,
in V Series (V35, V36, V37 & Infiniti)

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MDV

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Hi Guys,

My names Mike and im the proud new owner of a white 2004 V35 Coupe :D

I was hoping someone maybe be able to help my identify a really irritating issue I have been having.

On cold start there is a sound that seems to be coming from under the car rather then from the engine bay (you cant hear it as loud when listening from the front).

The only way I can describe it is like a piece of metal is vibrating. Its most notable on cold start but also happens when you give it a rev in the low rev range and when accelerating from low revs while driving, I would say upto about 3.5k revs.

I am thinking something to do with the exhaust or a heatshield of some sort??

My dad and I are going to get under there and have a look today and any advices would be greatly appreciated!!

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https://www.sau.com.au/forums/topic/411430-v35-6mt-metal-vibrating-sound/
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Nightcrawler Grand Master

Nightcrawler

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Yes, check for loose heat shielding, but more likely is that the inside of one of your cat converters has broken - in which case you need a new one (happened to me). The noise will get MUCH worse.

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