Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

belt squeal

Thread Tools
 
Search this Thread
 
Old 07-09-2012, 03:07 PM
  #1  
Launching!
Thread Starter
 
leon phelps's Avatar
 
Join Date: Nov 2009
Location: Croydon, PA
Posts: 274
Likes: 0
Received 1 Like on 1 Post

Default belt squeal

hello,

I know there are lots of posts here about belt squeal. I replaced mine with the gatorback one and it went away for about a week. had the car street tuned, not the squeal is back.


I have replaced the water pump, thinking it was the pump.

My squeal is pretty loud. Ill try to get a video of it and see what the people here think.
Old 07-09-2012, 03:17 PM
  #2  
TECH Senior Member
iTrader: (1)
 
sjsingle1's Avatar
 
Join Date: Feb 2010
Location: Fort Worth TX
Posts: 6,498
Received 215 Likes on 176 Posts

Default

belts AND pulleys........
Old 07-09-2012, 03:24 PM
  #3  
Launching!
Thread Starter
 
leon phelps's Avatar
 
Join Date: Nov 2009
Location: Croydon, PA
Posts: 274
Likes: 0
Received 1 Like on 1 Post

Default


belt gets louder with tensioner tightened.

Old 07-09-2012, 03:27 PM
  #4  
TECH Senior Member
iTrader: (71)
 
lemons12's Avatar
 
Join Date: Jul 2007
Location: Winchester, TN
Posts: 11,088
Likes: 0
Received 2 Likes on 2 Posts

Default

Get a bar of soap.. Carefully rub it on the belt while running and see if it goes away. That will rule out a tensioner... If it left and came back, you have a leak somewhere and it is dripping on the belt. Find the leak and fix it, replace belt, problem solved.
Old 07-09-2012, 03:54 PM
  #5  
Launching!
Thread Starter
 
leon phelps's Avatar
 
Join Date: Nov 2009
Location: Croydon, PA
Posts: 274
Likes: 0
Received 1 Like on 1 Post

Default

so I put a bar of soap against the ribbed side of the belt. the squeal went away.

what exactly does this tell me?
Old 07-09-2012, 04:14 PM
  #6  
TECH Senior Member
iTrader: (71)
 
lemons12's Avatar
 
Join Date: Jul 2007
Location: Winchester, TN
Posts: 11,088
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by leon phelps
so I put a bar of soap against the ribbed side of the belt. the squeal went away.

what exactly does this tell me?
Originally Posted by lemons12
Get a bar of soap.. Carefully rub it on the belt while running and see if it goes away. That will rule out a tensioner... If it left and came back, you have a leak somewhere and it is dripping on the belt. Find the leak and fix it, replace belt, problem solved.
If the squeal went away with the soap it isn't a pulley or tensioner... Since it went away then came back when you swapped belts that means anti freeze is leaking on your belt somewhere, mostly likely a small amount since it took a week to arise again.

Find your leak, repair the part or replace it, new belt.... Problem fixed.
Old 07-09-2012, 06:29 PM
  #7  
Launching!
Thread Starter
 
leon phelps's Avatar
 
Join Date: Nov 2009
Location: Croydon, PA
Posts: 274
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by lemons12
If the squeal went away with the soap it isn't a pulley or tensioner... Since it went away then came back when you swapped belts that means anti freeze is leaking on your belt somewhere, mostly likely a small amount since it took a week to arise again.

Find your leak, repair the part or replace it, new belt.... Problem fixed.
I would bet the farm it is not anything anti freeze related. all of my accessories are brand new gm parts (including my second water pump).

thanks for trying though.
Old 07-09-2012, 06:36 PM
  #8  
TECH Regular
iTrader: (6)
 
KTK Z28's Avatar
 
Join Date: Oct 2009
Posts: 440
Likes: 0
Received 1 Like on 1 Post
Default

I had a belt squeal problem as well just a short time ago. I replaced my belts with the AC Delco stuff and the sound came back (not as pronounced as before however) in a month or two. I went to the Gatorbacks by Goodyear and has been dead silent ever since. Are you double sure your power steering isn't leaking or.anything like that? Also, do you remember spilling any fluids on or near the belts after you replaced them with the Gatorbacks? Even something no brainer such as cleaning off the engine with a cleaner solution can cause loud belts. Good luck.
Old 07-09-2012, 07:06 PM
  #9  
Launching!
Thread Starter
 
leon phelps's Avatar
 
Join Date: Nov 2009
Location: Croydon, PA
Posts: 274
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by KTK Z28
I had a belt squeal problem as well just a short time ago. I replaced my belts with the AC Delco stuff and the sound came back (not as pronounced as before however) in a month or two. I went to the Gatorbacks by Goodyear and has been dead silent ever since. Are you double sure your power steering isn't leaking or.anything like that? Also, do you remember spilling any fluids on or near the belts after you replaced them with the Gatorbacks? Even something no brainer such as cleaning off the engine with a cleaner solution can cause loud belts. Good luck.
no power steering fluid leaks.

only think close to a fluid on the belt could be sweat.
Old 07-09-2012, 09:13 PM
  #10  
TECH Senior Member
iTrader: (96)
 
01ssreda4's Avatar
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,240
Likes: 0
Received 79 Likes on 70 Posts

Default

Though it sounds silly, I'd try another belt.
Old 07-09-2012, 09:57 PM
  #11  
Launching!
iTrader: (19)
 
hiram007's Avatar
 
Join Date: Oct 2003
Location: Houston, Tx
Posts: 204
Likes: 0
Received 0 Likes on 0 Posts
Default

I was gonna say power steering bit KTK beat me too it, hmmmmm.......there are only so many places it can come from
Old 07-10-2012, 03:30 PM
  #12  
TECH Senior Member
iTrader: (71)
 
lemons12's Avatar
 
Join Date: Jul 2007
Location: Winchester, TN
Posts: 11,088
Likes: 0
Received 2 Likes on 2 Posts

Default

Originally Posted by leon phelps
I would bet the farm it is not anything anti freeze related. all of my accessories are brand new gm parts (including my second water pump).

thanks for trying though.
I would check into it. Going away and coming back and it is definitely the belt.. Change the belt again, bet it goes away and comes back.

Something as simple as a bad o ring or gasket could be the culprit.

It is definitely the first and most common reason you would have belt squeal leave and come back after a new belt.

If not that, what else would cause it?
Old 08-08-2012, 09:48 PM
  #13  
Launching!
Thread Starter
 
leon phelps's Avatar
 
Join Date: Nov 2009
Location: Croydon, PA
Posts: 274
Likes: 0
Received 1 Like on 1 Post

Default

replaced the harmonic balancer and it is gone.

thanks everyone for trying.
Old 08-08-2012, 10:29 PM
  #14  
TECH Senior Member
 
garygnu's Avatar
 
Join Date: Feb 2009
Posts: 5,446
Received 4 Likes on 4 Posts

Default

with hi miles and wear the groves on the crank pulley widen.
Old 08-30-2012, 09:20 PM
  #15  
Launching!
Thread Starter
 
leon phelps's Avatar
 
Join Date: Nov 2009
Location: Croydon, PA
Posts: 274
Likes: 0
Received 1 Like on 1 Post

Default

well three weeks later and it has returned.
Old 08-30-2012, 09:38 PM
  #16  
TECH Senior Member
iTrader: (71)
 
lemons12's Avatar
 
Join Date: Jul 2007
Location: Winchester, TN
Posts: 11,088
Likes: 0
Received 2 Likes on 2 Posts

Default

Tried my suggestion??
Old 09-04-2012, 03:11 PM
  #17  
Launching!
Thread Starter
 
leon phelps's Avatar
 
Join Date: Nov 2009
Location: Croydon, PA
Posts: 274
Likes: 0
Received 1 Like on 1 Post

Default

which suggestion? The belt? I have five new belts. three from autozone, one gates and one gatorback. all give me the same squeal.

I have no loss of anti-freeze.

http://www.youtube.com/watch?v=PnVPb-2ZZKs
Old 09-04-2012, 09:21 PM
  #18  
TECH Senior Member
 
garygnu's Avatar
 
Join Date: Feb 2009
Posts: 5,446
Received 4 Likes on 4 Posts

Default

just a very tiny leak from the water pump weep hole could do it.are the pulleys clean and dry ?check the power steering for fluid level.how many miles on the engine ?saw a thread about pulleys being a little bit out of alignment.how big or alternator do you have ?
Old 09-07-2012, 05:30 PM
  #19  
Launching!
Thread Starter
 
leon phelps's Avatar
 
Join Date: Nov 2009
Location: Croydon, PA
Posts: 274
Likes: 0
Received 1 Like on 1 Post

Default

well I think I may have it. The power steering pulley is off by 1/2 of a groove with the laser guide. not much at all. cant really be anything I can see.

When I tried to move the pulley in more, it bottomed out on the power steering pump housing. It still was the same 1/2 of a groove off. I ordered a new one. You could see on the back of the pulley that the paint was worn off, so I know it was bottomed out.

Any other reasons why the pulley would not go on far enough? Bracket is solid, there is a plate on the front side that cant really go anywhere else. No spacer between bracket and head.

If the new pulley does not go in far enough, I will be replacing the pump.
Old 09-08-2012, 07:57 AM
  #20  
TECH Fanatic
 
RezinTexas's Avatar
 
Join Date: Jun 2011
Location: Katy, TX
Posts: 1,331
Likes: 0
Received 6 Likes on 6 Posts

Default

With the belts off, spray all the pulleys with brake cleaner a few times and let them dry. Then either get a new belt or put on a used belt that you are 100% sure does not have any fluid contamination. If there was any residue on any of the pulleys before, then the belt is contaminated and is likely trash.

Assuming there are no fluid leaks (or they have been fixed already) this method has worked for me every time.

Good luck with solving the issue.


Quick Reply: belt squeal



All times are GMT -5. The time now is 11:11 AM.