TeamSwift

Home of the Suzuki mini-compacts ! Your Home for all things Suzuki Swift, Geo Metro, Holden Barina, Chevy Sprint, Pontiac Firefly, and Suzuki Cultus. TeamSwift is a technical performance oriented community!
It is currently Fri Oct 20, 2017 3:10 pm

Underbody braces, turbos and more!

All times are UTC - 5 hours




Post new topic Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Sun Nov 14, 2010 4:40 pm 
Offline
User avatar

Joined: Thu Sep 30, 2010 9:54 am
Posts: 10
Location: Grass Valley CA
Team,

My son's Chevy Metro has developed a high pitched squeal/whine after it gets fully warmed up... I read other posts and people were saying it could be the alternator, belt or both. Some even blamed the water pump...

The water pump is brand new (Rock Auto), the alternator belt as well as the timing belt and tensioner have all been replaced.

To rule out the belts, or any associated bearing issues, after the car is at operating temperature, I pulled both the air conditioning and alternator belts, but yet the whine returns! Can't be alternator, water pump, or air conditioning.

I sprayed WD-40 around intake gasket, throttle body, fuel injectors, and etc to rule out a potential vacuum leak. Even replaced vacuum hoses...

The thing only whines/squeals when the RPM returns to idle. If you kick on the a/c or turn on the lights, you hear the load go on the engine, and whine stops. Once you return everything to normal, the whine is there.

Any ideas???

Steve

_________________
"Remember the days when racing was dangerous and sex was safe?"

1997 Geo Metro 1.0L/5-Speed


Top
 Profile  
 
PostPosted: Sun Nov 14, 2010 10:07 pm 
Offline
The Smuggler
User avatar

Joined: Thu Jun 10, 2004 12:34 am
Posts: 2885
Location: Surrey, BC CANADA
is your car a manual?
If so does the noise change when you use the clutch pedal?
Have you checked the oil level in the transmission lately?
on the manual transmission the throwout bearing can be really nosiy at idle if it had been touching the clutch fingers because of improper adjustment.
it will wear out the bearing prematurely.
and when it gets dry it will squeal.

_________________
"I love the whine of a turbo in the mornin" 1991 Sprint Turbo
"I also love the 7500 rpm scream of a DOHC" :razz: 2X 1989 Swift GTi's a 92 and Jr's new 93 GT

Keep your eye on the boost guage!
And I love this one!
"Dale Jarrett's crew chief" "Drive it like ya STOLE IT!"
Image


Top
 Profile  
 
PostPosted: Sun Nov 14, 2010 11:59 pm 
Offline
User avatar

Joined: Thu Sep 30, 2010 9:54 am
Posts: 10
Location: Grass Valley CA
Forgot to mention that it's the dreaded 3 speed automatic... :shock:

Anyway, it's not the alternator belt because I pulled it completely off the car along with the a/c belt... Fired her up and what do you know, the noise/whine returned!

So that leaves me ponder what else it could be?

Thanks for your inputs so far.

Steve

_________________
"Remember the days when racing was dangerous and sex was safe?"

1997 Geo Metro 1.0L/5-Speed


Top
 Profile  
 
PostPosted: Mon Nov 15, 2010 4:22 am 
Offline
User avatar

Joined: Thu Jul 09, 2009 1:14 am
Posts: 1897
Location: Prince George B.C. Canada
Remove the timing cover and try it again. If it persists, while the engine is running, spray WD40 in different areas, including into the alternator, and listen for the noise to go away (before you start putting things back on the engine). If the noise persists it could be internal so listen carefully to where the sound is coming from and get back to us. From what you have done so far I would begin to suspect the timing belt tensioner, even if it was replaced.


Top
 Profile  
 
PostPosted: Wed Nov 17, 2010 8:14 am 
Offline

Joined: Tue Oct 03, 2006 10:43 pm
Posts: 720
Location: Texas 75150
Considering you have eliminated drive belts, I would look at the following areas.
Timing belt cover rubbing on crank pulley.
Timing belt adjusted to tight.
PCV valve.
Vacuum lines. pinch them off with needle nose pliers to see if whine stops or changes pitch
Brake booster. Again pinch off vacuum hose.
Power steering pump. Low fluid? If your car is equipped with P/S.
Automatic transmission pickup tube to filter. The upper o ring is above the fluid level and if it
gets old it will pickup air and cause a transmission whine.

Use a long piece of vacuum hose to your ear and with the other end, probe the engine compartment to locate the source of the offending whine.

_________________
Fainya
97 Geo Metro LSI,1.3L-GT-DOHC-16v,4.10 5-speed,A/C,170,000,suspension lowered 1",4 wheel disk brakes,15"alloy wheels with 185/50-15 Toyo's,GT bucket seats,analog oil pressure gauge,cruise control, new paint job. 40 mpg at 65 mph.
Good, fast, cheap. You only get two.


Top
 Profile  
 
PostPosted: Wed Nov 17, 2010 2:57 pm 
Offline
User avatar

Joined: Thu Sep 30, 2010 9:54 am
Posts: 10
Location: Grass Valley CA
Thanks for all the replies!

Unfortunately, I haven't had time to troubleshoot the past couple of days...

I agree with all of you suggesting the timing belt tensioner... This only started after I installed the new timing belt and tensioner.

I will keep you notified of progress.

Steve

_________________
"Remember the days when racing was dangerous and sex was safe?"

1997 Geo Metro 1.0L/5-Speed


Top
 Profile  
 
PostPosted: Wed Nov 17, 2010 3:36 pm 
Offline
User avatar

Joined: Thu Oct 21, 2010 11:24 am
Posts: 59
Location: Laurel,MD USA
I hate to be this guy but....
Are you sure its not your wife whining in the passenger seat???

_________________
Most people call my cars Junk.

94 Geo Metro 4dr G10 357k miles
95 Ford Taurus GL Vulcan 298k miles
88 Nissan 300zx n/a 2+2 181k miles
1989 Ford F-150 5.0 4x4 (my 4wd Mustang) Lord only knows how many miles


Top
 Profile  
 
PostPosted: Sat Nov 20, 2010 12:57 am 
Offline

Joined: Tue Oct 03, 2006 10:43 pm
Posts: 720
Location: Texas 75150
I was watching a porn flick with this gal on the bed whining. Do you know what shut her up?
A D--K in her mouth..

_________________
Fainya
97 Geo Metro LSI,1.3L-GT-DOHC-16v,4.10 5-speed,A/C,170,000,suspension lowered 1",4 wheel disk brakes,15"alloy wheels with 185/50-15 Toyo's,GT bucket seats,analog oil pressure gauge,cruise control, new paint job. 40 mpg at 65 mph.
Good, fast, cheap. You only get two.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group