Weird engine noise (video)
Thread Starter
Instructor
Joined: Feb 2006
Posts: 142
Likes: 0
From: Wilmington DE
Weird engine noise (video)
Let me be clear, I know it's difficult, if not impossible, to diagnose an engine problem over the internet. BUT - with that said, it will be a few days before I can get in to the dealer, so I figured I would see if anyone can shed some light on this for me.
When I am between 1,500 and 3,000 RPM I can hear this increasingly annoying sound coming from the engine.
It wasn't there a few weeks ago when I bought the car (used with 4k miles). It's hard to describe, and probably equally as hard to pick up in the video, but it sort of sounds like a clicking/spinning sound. I know that makes no sense. So just check the video and tell me what you think. Thanks.
In both videos, you can hear it best around the 3 second mark.
When I am between 1,500 and 3,000 RPM I can hear this increasingly annoying sound coming from the engine.
It wasn't there a few weeks ago when I bought the car (used with 4k miles). It's hard to describe, and probably equally as hard to pick up in the video, but it sort of sounds like a clicking/spinning sound. I know that makes no sense. So just check the video and tell me what you think. Thanks.In both videos, you can hear it best around the 3 second mark.
Instructor
Joined: Jan 2006
Posts: 246
Likes: 4
From: Denton County Texas
couldn't hear anything, seen a few where the harmonic balancer has come loose, it thats it park it and have it towed. seen one they drove until it came apart and tore up a bunch of stuff...
Le Mans Master
Joined: Nov 2005
Posts: 5,835
Likes: 6
It would help to have the hood open as the sound insulation is doing its job. Depending on how much warranty you have left i suggest what's known as 'destructive testing'. You just drive the car hard until the engine either breaks or not.
Not to worry on the 08s. For some reason GM thinks the LS3 is too noisy for vette owners. It's going to have a specially fitted 'cap' above the intake with an air gap and fuel rail covers with special additional sound insulation. It's gonna sound like driving a Lincoln Town Car.
Not to worry on the 08s. For some reason GM thinks the LS3 is too noisy for vette owners. It's going to have a specially fitted 'cap' above the intake with an air gap and fuel rail covers with special additional sound insulation. It's gonna sound like driving a Lincoln Town Car.
Racer
Joined: Feb 2007
Posts: 460
Likes: 0
From: Calgary AB
On my 2005 I had the lower puley fall off. Common 05 issue. After a while my car started to sound funny, turned out that because of the pulley my timing chain came lose and was making noise. Not good. Can't tell by your video what it is, just thought I'd put this out there seeing yours is an 05
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
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
Thread Starter
Instructor
Joined: Feb 2006
Posts: 142
Likes: 0
From: Wilmington DE
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
I'm no expert trouble-shooting engine noises but it sounds a bit 'rough' to me. Get it to the dealership.
I think if your crank pulley or harmonic balancer "fell off" you would have lost your serpentine and accessory belts and your car would have over-heated in about 30 seconds flat...not too mention an immediate "service charging system" message.
On my 2005 I had the lower puley fall off. Common 05 issue. After a while my car started to sound funny, turned out that because of the pulley my timing chain came lose and was making noise. Not good. Can't tell by your video what it is, just thought I'd put this out there seeing yours is an 05
Team Owner
Joined: Aug 2003
Posts: 38,314
Likes: 35
It could leave you stranded in the middle of nowhere, or worse, cause an accident resulting in potential personal injury or injury to others.
I suggest that you take the car either to your dealer or to a good mechanic for a proper diagnosis of your problem.
Driving the car hard until you bust something, in an effort to diagnose a problem, has to be the single most absurd suggestion for solving a mechanical problem with one of these cars I have seen put forth on this forum.
Last edited by '06 Quicksilver Z06; Jun 14, 2007 at 03:34 AM.
Racer
Joined: Feb 2007
Posts: 460
Likes: 0
From: Calgary AB
I think if your crank pulley or harmonic balancer "fell off" you would have lost your serpentine and accessory belts and your car would have over-heated in about 30 seconds flat...not too mention an immediate "service charging system" message.
