Rattlesnake sound above 2.5k

Cyber370 · 10-06-2020, 02:17 PM

Quote:

Originally Posted by Habofro

Alright so, a few weeks ago, I started to notice a rattlesnake sound coming from the outside of the car. At first, I thought it was just brake shims that were rubbing on the disk and making that sound but, turns out, it's linked directly to the engine's RPM.

From what I've noticed, it seems like it's not as intense when the engine oil is at around 90c or above.

Any idea what that sound could be? What should I check?

Most importantly, IS MY ENGINE OR TRANS GOING TO BLOW UP?

Firstly, what engine oil (viscosity and type) are you using. If you don’t know then change it immediately to a good 5W30 synthetic. The engine’s VVET system is known to make slight rattling noise. Good synthetic oil should help. Or you can try the Nissan Ester oil which was specially developed for our engine to reduce the noise that the VVET can make.

Second thing that can rattle is the clutch. Try revving with the clutch depressed. If it goes away, then it’s the clutch and you’ll either learn to live with it or change it.

I would start with that. By the way, both of those items are no cause for alarm. They’re just annoyances you get from a high performance car with little to no sound proofing.

Habofro · 10-06-2020, 04:20 PM

Quote:

Originally Posted by Cyber370

Firstly, what engine oil (viscosity and type) are you using. If you don’t know then change it immediately to a good 5W30 synthetic. The engine’s VVET system is known to make slight rattling noise. Good synthetic oil should help. Or you can try the Nissan Ester oil which was specially developed for our engine to reduce the noise that the VVET can make.

Second thing that can rattle is the clutch. Try revving with the clutch depressed. If it goes away, then it’s the clutch and you’ll either learn to live with it or change it.

I would start with that. By the way, both of those items are no cause for alarm. They’re just annoyances you get from a high performance car with little to no sound proofing.

Can't say what oil is in the car right now, bought it 3000km ago and the oil was like new when I got it so I haven't done an oil change yet.

I'll try all of these things tomorrow on my lift, see if it only does the sound when the car is in gear or not.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
South Sound Summer Jam 2013 \| 8.18.13 \| South Sound Speedway	RussellM	North West Region	9	08-09-2013 08:17 PM
GT Sound Control - Premium Butyl, Discount, and Liquid Sound Deadener Solutions!	GTMat	Audio & Video	55	08-01-2013 01:55 AM
New Liqui-Damp Sound Deadener from GT Sound Control	GTMat	Audio & Video	32	04-02-2013 04:59 PM
Make you sound system sound better? Dynamatt the doors	DCNISMO	Audio & Video	11	07-30-2012 06:46 PM
high frequency sound/annoying as hell sound	Santent	Nissan 370Z General Discussions	4	12-22-2009 09:59 AM