is this engine noise normal?

Reply Subscribe

Thread Tools

Search this Thread

Jan 13, 2012 | 06:10 PM

MR_JLR

Thread Starter

Pro

Joined: Apr 2011

Posts: 689

Likes: 47

is this engine noise normal?

Sounds like loose change on drivers side. Can really only be heard by putting head(or camera) around brake fluid area. Never noticed the noise until I had a tapping sound a few weeks ago coming home from the gym(went away after I turned off then restarted the engine). No power loss, no oil loss, just this weird metallic whirring sound on the driver side. Not the alternator.

any feedback is greatly appreciated. Recorded with iphone so you may have to adjust your volume.

Jan 13, 2012 | 06:35 PM

JLB768

Melting Slicks

Joined: Nov 2007

Posts: 3,421

Likes: 20

From: Indiana

Quote:

Originally Posted by MR_JLR

My hearing is shot from years of installing audio equipment, but I don't hear anything that sounds different from my two previous C6's, or my current.

Jan 13, 2012 | 07:10 PM

GS-Zero

Drifting

Joined: Mar 2009

Posts: 1,285

Likes: 52

From: Salt Lake City, UT

C6 of Year Finalist (appearance mods) 2019

Probably the air conditioning compressor. It has a tendency to rattle against the frame, so I'm told.

Jan 13, 2012 | 08:54 PM

MR_JLR

Thread Starter

Pro

Joined: Apr 2011

Posts: 689

Likes: 47

Ok thanks for the responses

Jan 13, 2012 | 09:00 PM

oilrigpilot

Cruising

Joined: Dec 2010

Posts: 10

Likes: 0

From: Columbia SC

Sounds like mine... although i have an SC installed... but, i didn't hear anything that would concern me... I too have a slight valve tap...normal i think

Jan 13, 2012 | 09:33 PM

KKJ

Instructor

Joined: Mar 2011

Posts: 153

Likes: 0

From: Watertown SD

Sounds like mine too. Mine seems the loudest in the same area as yours, but I have a case of OCD with any little noise from my car

Jan 13, 2012 | 09:59 PM

MR_JLR

Thread Starter

Pro

Joined: Apr 2011

Posts: 689

Likes: 47

Quote:

Originally Posted by KKJ

Sounds like mine too. Mine seems the loudest in the same area as yours, but I have a case of OCD with any little noise from my car

Yeah tell me about it. Never would of noticed it had I not had a "tap, tap, ,tap sound that went away went I turned the car off and restarted it. Came out of nowhere. No I focus on that one area lol. Car drives fine but i feel like something up with this "loose change rattle/whirring sound" even thought it could have very well been there before.

Jan 13, 2012 | 10:09 PM

KenHorse

Team Owner

Joined: Aug 2007

Posts: 136,140

Likes: 2,432

From: I live my life by 2 rules. 1) Never share everything you know. 2)

St. Jude Donor '11-'12-'13, '16-'17-'18

All I hear is exhaust and injector noise

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

10 Ugly Corvettes That We Still Kinda Love

Joe Kucinski

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

Brett Foote

10 Things Every Corvette Owner Needs (2026 Edition)

Michael S. Palmer

8 Most "Only Corvette Owners Understand" Quirks and Problems

Pouria Savadkouei

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Joe Kucinski

How Much Horsepower Every Corvette Engine "LOST" in 1972

Joe Kucinski

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Michael S. Palmer

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Joe Kucinski

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Joe Kucinski

8 Coolest Corvette Pace Cars (and Replicas) of All Time

Verdad Gallardo

Jan 13, 2012 | 10:12 PM

JRHAWK9

Drifting

Joined: Feb 2006

Posts: 1,339

Likes: 1

From: Lake Delton (WI Dells) WI

Quote:

Originally Posted by KenHorse

All I hear is exhaust and injector noise

that's what I seem to hear too...although can't tell for sure from the video, but it sure sounds like injector noise to me.

Jan 13, 2012 | 10:16 PM

#10

MR_JLR

Thread Starter

Pro

Joined: Apr 2011

Posts: 689

Likes: 47

Quote:

Originally Posted by KenHorse

All I hear is exhaust and injector noise

turn your volume up if possible, the rattle starts 10 seconds into the video. it's not super loud as i have to put my head by the brake fluid to hear it but i just wanted to see what others thought.

Jan 13, 2012 | 10:29 PM

#11

SilverScorp

Safety Car

Joined: May 2007

Posts: 3,664

Likes: 49

From: Atlanta GA

Purring like a kitten to me

. Sounds like a LSx.

You certainly don't have harmonic balancer issues.

Jan 14, 2012 | 09:50 AM

#12

Larry/car

Race Director

Joined: May 2008

Posts: 10,742

Likes: 629

From: Manheim Pennsylvania

You don't have the engine cover on. The cover could silence or lower the noise.

Jan 14, 2012 | 10:02 AM

#13

MR_JLR

Thread Starter

Pro

Joined: Apr 2011

Posts: 689

Likes: 47

Quote:

Originally Posted by Larry/car

You don't have the engine cover on. The cover could silence or lower the noise.

I took the cover off to see if I could pinpoint the noise better. Sounds like its somewhere in-between the valve cover and header. Here's one with the cover on, sounds like a whistling noise as i move the phone in and out(turn volume up, recorded with phone)

I've listened to another 2008 in person and didn't hear it so I got concerned of course

Jan 14, 2012 | 01:46 PM

#14

JCtx

Melting Slicks

Joined: Dec 2006

Posts: 2,694

Likes: 106

Quote:

Originally Posted by MR_JLR

I took the cover off to see if I could pinpoint the noise better.

It's actually pretty darn quiet man; consider yourself lucky. It could be a very small exhaust leak if at all, but nothing of concern. Just drive it, and unless it gets worse over time, when it's obvious something is wrong, don't even bother taking it to a dealer. Mine was 10 times louder than yours, and was told it was normal

. Take care.

Jan 14, 2012 | 02:29 PM

#15

MR_JLR

Thread Starter

Pro

Joined: Apr 2011

Posts: 689

Likes: 47

Quote:

Originally Posted by ELP_JC

. Take care.

ok, thanks for the response

Jan 14, 2012 | 03:14 PM

#16

king off the hill

Racer

Joined: Sep 2009

Posts: 342

Likes: 4

look under

I no get under the car. now were your starter motor is.check were the exaust goes by close to the starter. theres a plastic cover is it on correct or twisted.

Jan 14, 2012 | 03:22 PM

#17

rayk

Drifting

Joined: Feb 2006

Posts: 1,355

Likes: 3

From: Maple Grove MN

Quote:

Originally Posted by Larry/car

You don't have the engine cover on. The cover could silence or lower the noise.

That's my take.

Jan 14, 2012 | 04:05 PM

#18

Jimmy W1

Melting Slicks

Joined: Feb 2011

Posts: 2,840

Likes: 65

From: Tree City

I was hearing a clicking noise in my 05 that would last until the engine warmed up. I think it is the AC clicking on and off. But I think that is on the passenger side.

Jan 14, 2012 | 04:42 PM

#19

HKILP7M8

Pro

Joined: May 2006

Posts: 670

Likes: 1

From: Wellington Florida

Sounds normal to me, sounds like mine, mine may be a bit louder...

Jan 14, 2012 | 05:01 PM

#20

brettbolt

Burning Brakes

Joined: Nov 2009

Posts: 833

Likes: 2

From: Roseville CA

If you get a large flexible hose (say 2 -3 inches diameter), you can put one end of it up to your ear and use the other end to probe around the engine.

I've used that method to locate vacuum leaks and other engine problems.

Hope its nothing serious.

Reply Share

First
Prev
1 / 2
Next
Last

Forum Jump