Squeal upon LS3 start up? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SSOOCH · 07-07-2009, 04:20 PM

I'm at 220 miles today. I went out to the car to grab some lunch. Started it up and there was a high pitched squeal that was heard. After I slapped the throttle it got faster and louder and then it went away. Went to lunch, when I came back out to my car after it sat for about an hour, the same noise occured. I have a LS3 with a manual trans.

Anybody else getting this?

Lucky SOB · 07-07-2009, 04:21 PM

That's interesting... Did you look at your serp. belt?

gtjacket · 07-07-2009, 04:23 PM

Definitely sounds like the serp belt needs to be tightened. Go to the dealer and have them check it. Should not take but a few minutes for them to do this.

ffrcobra_65 · 07-07-2009, 04:32 PM

Definitely the serpentine belt. The belt tensioner may not be doing its job..it is supposed to keep the belt at the correct tension as the belt naturally loosens over time. Or the belt itself is bad or glazed over. Or one of the pulleys is misaligned.

Here is what you can do to confirm it...spray or drop water on the belt while engine is running (be careful not to get any part of your body or clothing caught while you do this), the high pitch sound will even get louder and last longer until the water dissipates. If this happens, you know it is belt or tension related.

Don't use belt dressing to try to fix the squeal. Serp belts don't like belt dressing too much and actually makes them squel louder and longer, not to mention the dressing getting flung all over the place. Take it to the dealer, it is an easy fix.

Goodluck.

SSOOCH · 07-07-2009, 04:37 PM

That's what I thought as well. I'll swing by there on my way home.

Vash · 07-07-2009, 04:44 PM

It has an automatic tensioner. Could be some oil or cleaner got on the belt. Probably just needs to be wiped down and driven a bit. But never hurts to let the tech look at it.

THE EVIL TW1N · 07-07-2009, 09:00 PM

Quote:

Originally Posted by Vash

It has an automatic tensioner. Could be some oil or cleaner got on the belt. Probably just needs to be wiped down and driven a bit. But never hurts to let the tech look at it.

+1

but it could also be the tensioner.

BDA · 07-09-2009, 04:34 AM

I once bought a chevy suburban for $10 because of a bad tensioner
- kept spitting the belt and overheating - dealer changed all accessories on the front of the engine including the tensioner ($4,000) - but put the same OLD pulley back on the NEW tensioner

$15 pulley - good as new

Highjack over

RoyalKev · 07-09-2009, 07:43 AM

Maybe some installed a supercharger with out you noticing.

Sike its definitly the belt.

canadian ss · 07-09-2009, 07:47 AM

Dam cat.

UncleBenny · 07-09-2009, 07:50 AM

Quote:

Originally Posted by RoyalKev

Maybe some installed a supercharger with out you noticing.

Sike its definitly the belt.

My G8 squeals on start up, I tell people its the supercharger haha. All the G8's seem to do it though, people on forums say its the alternator. I believe the GXP's do it as well, and they have the LS3 in them like the Camaro, so a pretty similar setup I'm guessing. Maybe that's what you're hearing?

http://www.g8board.com/forums/showthread.php?t=15543

SicSix6 · 07-09-2009, 08:49 AM

Quote:

Originally Posted by SSOOCH

I'm at 220 miles today. I went out to the car to grab some lunch. Started it up and there was a high pitched squeal that was heard. After I slapped the throttle it got faster and louder and then it went away. Went to lunch, when I came back out to my car after it sat for about an hour, the same noise occured. I have a LS3 with a manual trans.

Anybody else getting this?

squeal is the serpentine belt.

blackknight · 12-18-2010, 05:18 PM

I noticed my L99 doing this today.....its going to the dealer this week anyways for the lifter tick noise on startup and for the spoiler paint chip dilema.

Hopefully its nothing serious and just the belt out of alignment.

SSOOCH · 12-18-2010, 05:22 PM

A day after this original post I never heard it again.

07-07-2009, 04:20 PM	#1
SSOOCH Camaro SL,UTs Drives: 2010 Camaro SS/RS #16429 Join Date: Sep 2006 Location: South Jordan, UT Posts: 7,358 View My Garage	Squeal upon LS3 start up? I'm at 220 miles today. I went out to the car to grab some lunch. Started it up and there was a high pitched squeal that was heard. After I slapped the throttle it got faster and louder and then it went away. Went to lunch, when I came back out to my car after it sat for about an hour, the same noise occured. I have a LS3 with a manual trans. Anybody else getting this? __________________

07-07-2009, 04:21 PM	#2
Lucky SOB Drives: 2010 Camaro 2SS/RS Join Date: May 2009 Location: Michigan Posts: 756	That's interesting... Did you look at your serp. belt? __________________

07-07-2009, 04:23 PM	#3
gtjacket 2G1FT1EW0A9118618 Drives: 2010 Camaro 2SS Black/IOM M6 Join Date: Dec 2008 Location: Florence, KY Posts: 550 View My Garage	Definitely sounds like the serp belt needs to be tightened. Go to the dealer and have them check it. Should not take but a few minutes for them to do this. __________________ 1100, Preliminary order accepted 12/5 2000, Order accepted by GM 05/05 3000, Order accepted by production control 05/05 3400, Order broadcast 6/4 3800, Order produced 6/15 4000, Available to ship 6/16 4104, Bailment Invoice 4200, Shipped 6/19 6000, Delivered to the customer 6/25 2SS/RS BLK M6 GFX IOM interior

07-07-2009, 04:37 PM	#5
SSOOCH Camaro SL,UTs Drives: 2010 Camaro SS/RS #16429 Join Date: Sep 2006 Location: South Jordan, UT Posts: 7,358 View My Garage	That's what I thought as well. I'll swing by there on my way home. __________________

07-09-2009, 04:34 AM	#8
BDA Drives: GMC Acadia, F250 Join Date: Apr 2009 Location: Kenai, Alaska Posts: 22	tensioner story I once bought a chevy suburban for $10 because of a bad tensioner - kept spitting the belt and overheating - dealer changed all accessories on the front of the engine including the tensioner ($4,000) - but put the same OLD pulley back on the NEW tensioner $15 pulley - good as new Highjack over

07-07-2009, 04:32 PM	#4
ffrcobra_65 Account Suspended Drives: SuperCharged 2SS/RS IOM MN6 Join Date: May 2009 Location: CA Posts: 5,094	Definitely the serpentine belt. The belt tensioner may not be doing its job..it is supposed to keep the belt at the correct tension as the belt naturally loosens over time. Or the belt itself is bad or glazed over. Or one of the pulleys is misaligned. Here is what you can do to confirm it...spray or drop water on the belt while engine is running (be careful not to get any part of your body or clothing caught while you do this), the high pitch sound will even get louder and last longer until the water dissipates. If this happens, you know it is belt or tension related. Don't use belt dressing to try to fix the squeal. Serp belts don't like belt dressing too much and actually makes them squel louder and longer, not to mention the dressing getting flung all over the place. Take it to the dealer, it is an easy fix. Goodluck.

07-07-2009, 04:44 PM	#6
Vash Drives: 00 Blazer Join Date: Aug 2008 Location: Texas Posts: 5,104	It has an automatic tensioner. Could be some oil or cleaner got on the belt. Probably just needs to be wiped down and driven a bit. But never hurts to let the tech look at it.

07-09-2009, 07:43 AM	#9
RoyalKev Drives: 2010 Camaro SS Join Date: Jan 2009 Location: Maryland Posts: 973	Maybe some installed a supercharger with out you noticing. Sike its definitly the belt.

07-09-2009, 07:47 AM	#10
canadian ss Psycho on day pass Drives: 2010 yellow 1ss m6 -GM tech Join Date: Apr 2009 Location: grimsby, ont. Posts: 487 View My Garage	Dam cat.

12-18-2010, 05:18 PM	#13
blackknight Camaro Lover Drives: 2014 GMC Sierra 5.3L Join Date: Feb 2010 Location: Chicago 'Burbs Posts: 709	I noticed my L99 doing this today.....its going to the dealer this week anyways for the lifter tick noise on startup and for the spoiler paint chip dilema. Hopefully its nothing serious and just the belt out of alignment. __________________ No Camaro right now. But I'll be back in one in a few years.

12-18-2010, 05:22 PM	#14
SSOOCH Camaro SL,UTs Drives: 2010 Camaro SS/RS #16429 Join Date: Sep 2006 Location: South Jordan, UT Posts: 7,358 View My Garage	A day after this original post I never heard it again. __________________

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