Squealing from Behind Engine? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

Closed Thread
 
LinkBack Thread Tools Display Modes
post #1 of 21 (permalink) Old 12-10-2012, 06:00 AM Thread Starter
Staff Alumni
 
money_man's Avatar
 
Join Date: Mar 2012
Location: Halifax, N.S
Posts: 3,127
Squealing from Behind Engine?

So I took my car this morning and was going to put a serp belt on because it had a high litch "squealing" noise from the passenger side. Well now i've pretty much got the noise pinpointed to the back of the engine where that tube goes into the waterpump housing.

Its not there as soon as I turn it on after sitting all night, then when I stop at a light or something its there (closest set of lights is 4km from my house) then when I stop it seems to get quieter and quieter and then completely stop, but as soon as I give it fuel it starts again.

2009 Ford Escape Limited - 3.0L, 6 speed auto, 4x4, 25/33 city/hwy imp mpg.
2017 F150 XLT-XTR - 5.0L, 4x4, 3.55's, E-locker, xtr chrome package, fx4 off-road package.
20/25 imp mpg
money_man is offline  
Sponsored Links
Advertisement
 
post #2 of 21 (permalink) Old 12-10-2012, 06:06 AM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
Try some water pump lube coolant additive if your sure it's the pump. My Cobalt it was the serpentine idler tensionner pulley bearing.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #3 of 21 (permalink) Old 12-10-2012, 06:31 AM Thread Starter
Staff Alumni
 
money_man's Avatar
 
Join Date: Mar 2012
Location: Halifax, N.S
Posts: 3,127
i used one of those stethoscopes. the belt side sounds fine but behind the motor almost sounds like a squeaking wheel on an old office chair

---------- Post added at 09:19 AM ---------- Previous post was at 09:18 AM ----------

im about to pull off the serp belt to completely eliminate that as a problem. I was really hoping that was it. Im seriously hoping its not the water pump with only 130,000km on it.


Do i just put the water pump lube into the overflow tank and let it circulate by itself?

---------- Post added at 09:31 AM ---------- Previous post was at 09:19 AM ----------

now i go out to remove the belt and the damn car isnt making the sound., tried to drive it and the noise came back, sprayed the belt with water and no change. Going to order some of that water pump lube.

2009 Ford Escape Limited - 3.0L, 6 speed auto, 4x4, 25/33 city/hwy imp mpg.
2017 F150 XLT-XTR - 5.0L, 4x4, 3.55's, E-locker, xtr chrome package, fx4 off-road package.
20/25 imp mpg

Last edited by money_man; 12-10-2012 at 06:36 AM.
money_man is offline  
 
post #4 of 21 (permalink) Old 12-10-2012, 06:55 AM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
I think you add it to the radiator directly when cold. This way it reaches the pump sooner and at a higher concentration.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #5 of 21 (permalink) Old 12-10-2012, 08:34 AM Thread Starter
Staff Alumni
 
money_man's Avatar
 
Join Date: Mar 2012
Location: Halifax, N.S
Posts: 3,127
well its in, now im just waiting for the car to come up hot enough that the thermostat opens up.

---------- Post added at 11:20 AM ---------- Previous post was at 10:23 AM ----------

well its been running for an hour and no change. time to remove the belt

---------- Post added at 11:34 AM ---------- Previous post was at 11:20 AM ----------

ok got my paws on a different stethoscope and pushed it hard against the waterpump, sounds fine. Now an old guy told me it could possibly be a exhaust manifold gasket. I;m trying to get a video i took up but cant seem to find a wifi signal

2009 Ford Escape Limited - 3.0L, 6 speed auto, 4x4, 25/33 city/hwy imp mpg.
2017 F150 XLT-XTR - 5.0L, 4x4, 3.55's, E-locker, xtr chrome package, fx4 off-road package.
20/25 imp mpg
money_man is offline  
post #6 of 21 (permalink) Old 12-10-2012, 05:01 PM Thread Starter
Staff Alumni
 
money_man's Avatar
 
Join Date: Mar 2012
Location: Halifax, N.S
Posts: 3,127
Ok decided I needed a serp belt so got one and removed the tensioner and the bearing is getting bad in the pulley so I ordered one of those. I'm going to get pics and the video I took up shortly


ok here they are

http://imageshack.us/g/822/cobaltbelt.jpg/

hmm...the file is a 3gp file from my phone and it wont work on imageshack...

2009 Ford Escape Limited - 3.0L, 6 speed auto, 4x4, 25/33 city/hwy imp mpg.
2017 F150 XLT-XTR - 5.0L, 4x4, 3.55's, E-locker, xtr chrome package, fx4 off-road package.
20/25 imp mpg

Last edited by money_man; 12-10-2012 at 05:24 PM.
money_man is offline  
post #7 of 21 (permalink) Old 12-10-2012, 07:53 PM
Forum Regular
 
Join Date: Jan 2012
Location: Toronto
Posts: 188
its most likey your water pump i had the same problem would start squealing after it warmed up, changed my water pump noise gone

09 SS/TC 4DR G85
dawkness is offline  
post #8 of 21 (permalink) Old 12-11-2012, 04:44 AM Thread Starter
Staff Alumni
 
money_man's Avatar
 
Join Date: Mar 2012
Location: Halifax, N.S
Posts: 3,127
That waterpump looks like a horrible think to get into

2009 Ford Escape Limited - 3.0L, 6 speed auto, 4x4, 25/33 city/hwy imp mpg.
2017 F150 XLT-XTR - 5.0L, 4x4, 3.55's, E-locker, xtr chrome package, fx4 off-road package.
20/25 imp mpg
money_man is offline  
post #9 of 21 (permalink) Old 12-11-2012, 07:36 AM
Forum Regular
 
Join Date: Jan 2012
Location: Toronto
Posts: 188
it was alright had tonnes of room because mine is stick you need a special tool to hold water pump gear in place so you dont mess your timing up, will cause your tensioner to fully retract if not installed properly

09 SS/TC 4DR G85
dawkness is offline  
post #10 of 21 (permalink) Old 12-11-2012, 09:31 AM Thread Starter
Staff Alumni
 
money_man's Avatar
 
Join Date: Mar 2012
Location: Halifax, N.S
Posts: 3,127
book says 4.5hrs, and people say if you dont use the tool correctly you can have the tensioner come too tight and cause a waterpump squeal.

UPDATE:

So I changed the serp tensioner pulley and belt, I havent taken it for a long drive yet but I did let it warm up and took it on a very hard 5 min drive and then listened once I stopped and the only squeal I can hear is a slight chirping around 1500rpm, I dont notice it at 2000rpm+ so im thinking either the belt tensioner pulley and belt was the problem or maybe that pump lubricant that coby7 told me about is working.

I'm super paranoid when it comes to noises, so in a week or so if I dont hear it again then ill say shes fixed, for now...its pending. My luck says I'll be changing the water pump but im hoping I wont have to.

---------- Post added at 12:31 PM ---------- Previous post was at 12:30 PM ----------

Quote:
Originally Posted by dawkness View Post
it was alright had tonnes of room because mine is stick you need a special tool to hold water pump gear in place so you dont mess your timing up, will cause your tensioner to fully retract if not installed properly
yea mines stick too

2009 Ford Escape Limited - 3.0L, 6 speed auto, 4x4, 25/33 city/hwy imp mpg.
2017 F150 XLT-XTR - 5.0L, 4x4, 3.55's, E-locker, xtr chrome package, fx4 off-road package.
20/25 imp mpg
money_man is offline  
Sponsored Links
Advertisement
 
Closed Thread

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome