Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

I have had it with this squeal!!!!!!!

Thread Tools
 
Search this Thread
 
Old Apr 27, 2014 | 07:27 PM
  #1  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default I have had it with this squeal!!!!!!!

Ok, so I have this squeal that only appears when my car hits operating temperature. We replaced all the pullies and belts on engine. I have depressed my clutch and what have you to see if it was the throwout bearing, but thats not the case. When I rev the car up it goes away, or if its under load it goes away. Wth is this! Here is a video of the sound. Changed oil and found nothing in old oil or filter

Reply
Old Apr 27, 2014 | 07:38 PM
  #2  
Darkman's Avatar
TECH Addict
iTrader: (2)
 
Joined: Apr 2009
Posts: 2,167
Likes: 6
From: Spring, Texas
Default

Under what circumstances did the noise start - that is, did you change anything, or did it just arrive one day?
Reply
Old Apr 27, 2014 | 07:48 PM
  #3  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default

We drove over to my friends one day and we put that fast 90 on then randomly after operating temp reached that squeal appeared. No funky idle problems. We checked for leaks around there, and found nothing. We also sprayed break cleaner to see if engine would rev from a leak. We tried turing ac on and off to see if that changed anything. But nothing. Clutch doesn't affect the sound. If it is revd or under load it goes away. Replaced both belts and idlers and tensioners....
Reply
Old Apr 27, 2014 | 08:24 PM
  #4  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default

Vacuum leak from fast 90?? It did it after we installed it. Car never made that noise before. After we installed it and car hit operating temp, it started. Maybe a gasket wwas bad??
Reply
Old Apr 27, 2014 | 08:35 PM
  #5  
Darkman's Avatar
TECH Addict
iTrader: (2)
 
Joined: Apr 2009
Posts: 2,167
Likes: 6
From: Spring, Texas
Default

Originally Posted by Dr.Goat
Vacuum leak from fast 90?? It did it after we installed it. Car never made that noise before. After we installed it and car hit operating temp, it started. Maybe a gasket wwas bad??
It is possible, but it does not sound like a vacuum leak to me. Sometimes a different part (the intake) creates interference with something up front - a pulley or belt, or even a radiator fan. Can we rule out power steering - the quality and quantity of fluid?
Reply
Old Apr 27, 2014 | 09:03 PM
  #6  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default

I am using the recommend oe fluid. If you rotate the wheel, it does not change sound. Unless something else could cause the sound to come from that area??
Reply
Old Apr 27, 2014 | 10:18 PM
  #7  
jmargo's Avatar
TECH Enthusiast
iTrader: (10)
 
Joined: Jan 2012
Posts: 546
Likes: 0
From: Nor Cal
Default

Does it make the sound with the belts removed ?
Reply
Old Apr 27, 2014 | 10:25 PM
  #8  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default

We haven't fired it up with belts removed at operating temp.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Apr 28, 2014 | 12:18 AM
  #9  
Mike_hawk's Avatar
On The Tree
 
Joined: Aug 2012
Posts: 190
Likes: 0
Default

If it still squealing with the belts off maybe try running it with the cold air tube off, so just throttlebody>intake and see if it goes away. Maybe the new intake is causing a whistle at a certain rpm.
Reply
Old Apr 28, 2014 | 12:45 AM
  #10  
RJDio's Avatar
TECH Enthusiast
 
Joined: Nov 2012
Posts: 555
Likes: 0
From: NearHouston, TX
Default

I'd do the old shade tree method, put car on ramps, start up idle, grab a can of WD40 and spray anything turning and see if noise goes away for a minute or two.
Reply
Old Apr 28, 2014 | 06:47 AM
  #11  
Paul Bell's Avatar
That's MISTER MODERATOR
20 Year Member
Photogenic
Liked
Loved
iTrader: (9)
 
Joined: Nov 2005
Posts: 7,615
Likes: 65
From: NYC
Default

Reply
Old Apr 28, 2014 | 12:42 PM
  #12  
jmargo's Avatar
TECH Enthusiast
iTrader: (10)
 
Joined: Jan 2012
Posts: 546
Likes: 0
From: Nor Cal
Default

Originally Posted by Paul Bell
Who knows...it may be internal.

I would get it to temp and remove the belt after the noise starts. Just don't run for much time as you wont be circulating any coolant.
Reply
Old Apr 28, 2014 | 01:36 PM
  #13  
GMC5.3's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Jan 2005
Posts: 634
Likes: 0
From: Colorado
Default

And the ac pulleys and belts were checked correct?
Reply
Old Apr 28, 2014 | 01:53 PM
  #14  
JakeFusion's Avatar
Super Hulk Smash
20 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Aug 2004
Posts: 11,258
Likes: 146
From: Pace, FL
Default

Spray water on the belt. If it goes away, it's an alignment problem. Possibly the power steering pulley or balancer. Although, that happens as soon as you start the car.

Remove the belt from the A/C to make sure it's not coming from there. Remove the belt after the car has heated up. It will run fine for a few seconds to check for causes of the squeal.

Have you replaced both idler pullies?

Have you tried a Gatorback belt?
Reply
Old Apr 28, 2014 | 03:18 PM
  #15  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default

Originally Posted by Mike_hawk
If it still squealing with the belts off maybe try running it with the cold air tube off, so just throttlebody>intake and see if it goes away. Maybe the new intake is causing a whistle at a certain rpm.
Already tried that, it was making that sound with just the tb as well.
Reply
Old Apr 28, 2014 | 03:20 PM
  #16  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default

Originally Posted by GMC5.3
And the ac pulleys and belts were checked correct?
Yep, and replaced.
Reply
Old Apr 28, 2014 | 03:21 PM
  #17  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default

Originally Posted by JakeFusion
Spray water on the belt. If it goes away, it's an alignment problem. Possibly the power steering pulley or balancer. Although, that happens as soon as you start the car.

Remove the belt from the A/C to make sure it's not coming from there. Remove the belt after the car has heated up. It will run fine for a few seconds to check for causes of the squeal.

Have you replaced both idler pullies?

Have you tried a Gatorback belt?
I replaced both pullies, actually almost every pulley. I replaced with gates belts. I took the ac belt off did nothing to change the sound.
Reply
Old Apr 28, 2014 | 03:23 PM
  #18  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default

Originally Posted by Paul Bell
I posted it in here, because I was not sure if it may possibly be something internal related................
Reply
Old Apr 28, 2014 | 03:34 PM
  #19  
JakeFusion's Avatar
Super Hulk Smash
20 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Aug 2004
Posts: 11,258
Likes: 146
From: Pace, FL
Default

Gates belts suck. My sister and I both had belt slip on our LS1s with them. Run the Gatorbacks. But if it's happening with no belt...
Reply
Old Apr 28, 2014 | 03:44 PM
  #20  
Dr.Goat's Avatar
Thread Starter
On The Tree
 
Joined: Aug 2012
Posts: 163
Likes: 0
Default

I had the sound with gatorbacks as well. That is what I had on car when it started. Also I replaced my gator serpintine the other day. It wasn't even a year old and had stretched.
Reply



All times are GMT -5. The time now is 12:20 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE