C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

HEARING A CHIRPING

Thread Tools
 
Search this Thread
 
Old Aug 29, 2003 | 07:05 PM
  #1  
Tombone's Avatar
Tombone
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Nov 2002
Posts: 804
Likes: 1
From: Some where in Ontario Canada
Default HEARING A CHIRPING

1999 LS1
I am hearing a chirping , like the tone of a circket at idle.
Is it a pully?
What is the cause and does it need attention?
Thanks:confused:
Reply
Old Aug 29, 2003 | 09:34 PM
  #2  
Monk's Avatar
Monk
Racer
 
Joined: Jun 2002
Posts: 439
Likes: 0
From: Framingham MA
Default Re: HEARING A CHIRPING (Tombone)

1999 LS1
I am hearing a chirping , like the tone of a circket at idle.
Is it a pully?
What is the cause and does it need attention?
Thanks:confused:
Does it only happen when the engine is cold? Or is it there all the time?
Reply
Old Aug 29, 2003 | 09:42 PM
  #3  
Tombone's Avatar
Tombone
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Nov 2002
Posts: 804
Likes: 1
From: Some where in Ontario Canada
Default Re: HEARING A CHIRPING (Tombone)

It just started tonight, and I noticed it when the engine was hot.
It seems to decrease when I put on the AC?
Reply
Old Aug 29, 2003 | 09:51 PM
  #4  
Monk's Avatar
Monk
Racer
 
Joined: Jun 2002
Posts: 439
Likes: 0
From: Framingham MA
Default Re: HEARING A CHIRPING (Tombone)

It just started tonight, and I noticed it when the engine was hot.
It seems to decrease when I put on the AC?
My '98 has the cricket chirp when its been sitting for a while stone cold. It goes away after 5 to 15 minutes. I originally thought it was the harmonic balancer, but apparently not. It checked out fine. There was a TSB on the issue and the culprit was a poorly designed, overtorqued idler pulley. A new design was made available. On more recent year C5's, I understand that the tensioner can give the same sound. My C5 mechanic said to always check the belt first with a quick spray of wd-40 or just about anything else wet. If the sound goes away, it is the belt. If the sound stays, it is likely to be your idler pulley or belt tensioner (depending on year).

Reply
Old Aug 30, 2003 | 10:39 AM
  #5  
lowdowndirty's Avatar
lowdowndirty
Burning Brakes
 
Joined: Jul 2003
Posts: 1,104
Likes: 0
From: "In a van down by the river" CO
Default Re: HEARING A CHIRPING (Monk)

Also, it is known that the pulleys will squeck when they contain a build-up of dirt and/or oil. Try taking off the two belts and cleaning the pullies with a wire brush. Also, either buy new belts or go through the grooves and the "teeth" on each belt and pick out all the small rocks embedded with a small screwdriver or pick. This helped on a buddy's car.

Also, the Blackwings sometimes emit a chriping sound (in case you have one). Good luck. Chris.
Reply
Old Sep 4, 2003 | 10:53 AM
  #6  
sgp99's Avatar
sgp99
Racer
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: May 2003
Posts: 420
Likes: 12
From: Long Valley NJ
Default Re: HEARING A CHIRPING (Tombone)

I had the same problem with my '99 coupe. My mechanic put some WD40 on the belt and the chirping stopped. This indicated that it was a belt problem and not a pulley. I replaced the belt and have not heard the chiping noise since then. :)
Reply
Old Sep 4, 2003 | 11:38 PM
  #7  
blackjack's Avatar
blackjack
Burning Brakes
20 Year Member
 
Joined: Apr 1999
Posts: 885
Likes: 0
From: Bay Area, CA
Default Re: HEARING A CHIRPING (sgp99)

Probably a belt. Mine was...

-Blackjack
Reply
Old Sep 4, 2003 | 11:52 PM
  #8  
Rookiedyn's Avatar
Rookiedyn
Pro
 
Joined: Jun 2002
Posts: 725
Likes: 0
From: Rochester NY
Default Re: HEARING A CHIRPING (blackjack)

My Tahoe does this when its wet out. I sprayed the tensioner with WD40 and it goes quiet. I guess WD40 would be a good way to narrow down your problem as well.

Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Sep 5, 2003 | 12:01 AM
  #9  
waytofastvette's Avatar
waytofastvette
Drifting
 
Joined: Jun 2002
Posts: 1,716
Likes: 0
Default Re: HEARING A CHIRPING (Rookiedyn)

Yeah mine chirps all the time ... :D esp when I shift into second at 6 thousand RPM :steering:
Reply
Old Sep 5, 2003 | 11:04 AM
  #10  
1999 White C5 Coupe's Avatar
1999 White C5 Coupe
Burning Brakes
20 Year Member
 
Joined: Dec 2000
Posts: 993
Likes: 5
From: Cincinnati Ohio
Default Re: HEARING A CHIRPING (Tombone)

Tombone,

I had the same chirp / squeak at idle on my 1999 C5 coupe. The dealer repalced the idler pulley according to a TSB, which eliminated the noise. You may review the TSB here: http://corvetteactioncenter.com/kb/q....php?qstId=258

The idler pulley has been updated with a revised / better part. The TSB allows the dealer 0.3 hours of labor and the part is inexpensive. Good luck.

Reply
Old Sep 5, 2003 | 11:52 AM
  #11  
Mark S.'s Avatar
Mark S.
Safety Car
25 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Mar 1999
Posts: 3,630
Likes: 8
From: Virginia Beach Virginia
Default Re: HEARING A CHIRPING (1999 White C5 Coupe)

I would also check your water pump. The last time I head a "chirp" in my '94 LT1 it was the waterpump...had to be replaced with only 8K miles on the odometer.
Reply
Old Sep 6, 2003 | 12:12 PM
  #12  
gkarman's Avatar
gkarman
Instructor
 
Joined: Jul 2002
Posts: 134
Likes: 0
From: Boston MA
Default Re: HEARING A CHIRPING (Mark S.)

I would bet it is your serpentine belt if I was a betting man... Had mine changed at 30k and most of the engine compartment noise I had such as squeaking and chirping disappeared... The guy that changed the belt claimed that our alternators can make a squeak/ chirp sound also although mine doesn't... How many miles on your C5?
Reply
Old Sep 6, 2003 | 12:19 PM
  #13  
Tombone's Avatar
Tombone
Thread Starter
Burning Brakes
10 Year Member
 
Joined: Nov 2002
Posts: 804
Likes: 1
From: Some where in Ontario Canada
Default Re: HEARING A CHIRPING (gkarman)

Thanks Guys for all your posts.
I sprayed white grease into the tensioner pully and solved my problem.
If you do this shield the pully so you don't cover yourself or the car with grease. :cheers:
Reply

Get notified of new replies

To HEARING A CHIRPING





All times are GMT -4. The time now is 09:12 PM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE