[Z06] Noisy C5 ZO6???

Reply Subscribe

Thread Tools

Search this Thread

Sep 14, 2014 | 09:35 AM

mplang

Thread Starter

Cruising

Joined: Aug 2014

Posts: 11

Likes: 0

Noisy C5 ZO6???

Hi, my 2004 LeMans ZO6 has a somewhat slight rhythmic noise more noticeable from the dashboard area since I bought it at 18k miles. Does not sound bad like a valve tick or major mechanical issue for sure. No performance or mileage is being effected. Starts, runs and cruises great. Noise more evident at highway speeds.

Only 28k miles now, noise is no worse or better. Car has the typical 6spd with transaxle set up.

Nature of the beast, as vettes are not noted for a quite ride, or?

Any insight appreciated.

Sep 14, 2014 | 12:32 PM

danziger

Team Owner

Joined: Nov 2001

Posts: 34,124

Likes: 105

From: Pensacola FL

Is it like a clatter, or a deeper noise? All the time, or certain situations?

Sep 14, 2014 | 01:16 PM

mplang

Thread Starter

Cruising

Joined: Aug 2014

Posts: 11

Likes: 0

Quote:

Originally Posted by danziger

Is it like a clatter, or a deeper noise? All the time, or certain situations?

At highways speeds only.

Sep 14, 2014 | 01:19 PM

mplang

Thread Starter

Cruising

Joined: Aug 2014

Posts: 11

Likes: 0

Quote:

Originally Posted by danziger

Is it like a clatter, or a deeper noise? All the time, or certain situations?

Sorry, didn't answer completely. A deeper sound not a clatter, and not coming from back.

Sep 14, 2014 | 06:03 PM

danziger

Team Owner

Joined: Nov 2001

Posts: 34,124

Likes: 105

From: Pensacola FL

My first thought would be tire noise since it is happening at speed. Is it a cyclic noise, or constant?

Sep 14, 2014 | 07:01 PM

racebum

Race Director

Joined: Jan 2008

Posts: 16,028

Likes: 170

From: oregon

if the sound changes depending on the pavement you're on it's the tires

are your tires 4 years old or newer? if not they are due to be replaced

Sep 14, 2014 | 07:04 PM

mplang

Thread Starter

Cruising

Joined: Aug 2014

Posts: 11

Likes: 0

Quote:

Originally Posted by danziger

My first thought would be tire noise since it is happening at speed. Is it a cyclic noise, or constant?

More cyclic, I just replaced the rear tires the 335's the guy before had on the car were ridiculous. Switched to the stock 295's and much better. The fronts are 275 from the factory, stock should be 265, maybe that's it? The tire are on great shape but they are 10 years old.

Your thoughts?