Horrible Squeaking
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 842
Likes: 4
From: Corpus Christi TX
St. Jude Donor '05
Horrible Squeaking
One of the accessory pulleys is squealing loudly when I first start up in the morning... Once it warms up, the squeak stops. It is not the belt. I know it is hard to diagnose without actually being there... but I am having trouble isolating it... Is there a a part that is notorious for sqealing on these cars? I have a 2000 convertible with 47k miles.
Racer
Joined: Sep 2006
Posts: 389
Likes: 1
From: Roswell GA
On all my other cars, it seems to always be the idler pulley. I just sprayed wd-40 behind the dust plate while the engine is running and the squeal went away. Just don't get your hand close to the belt and wear eye protection to keep the wd-40 out of your eyes.
Intermediate
Joined: Oct 2006
Posts: 27
Likes: 0
From: Abilene Texas
similar problem
I am having a similar problem and dont know what to do. I've had it at the chevy dealership for about the past month and they cant seem to figure it out. They have put 2 new belts idler pulley, main crank pulley and i still have a squeak. So they have decided to order a gator belt and its not in yet. Is your squeak noticable all the time or jsut when you are on the gas? Mine is only when im on the gas. Any feedback would be nice
Thanks
Thanks
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 842
Likes: 4
From: Corpus Christi TX
St. Jude Donor '05
I am having a similar problem and dont know what to do. I've had it at the chevy dealership for about the past month and they cant seem to figure it out. They have put 2 new belts idler pulley, main crank pulley and i still have a squeak. So they have decided to order a gator belt and its not in yet. Is your squeak noticable all the time or jsut when you are on the gas? Mine is only when im on the gas. Any feedback would be nice
Thanks
Thanks
Instructor
Joined: Jan 2006
Posts: 103
Likes: 2
From: Boynton Beach Florida
2018 C6 of Year Finalist
Does your harmonic balancer look alright? If it is bad you will see it while the engine is idling. Thats how my problem started, with a squeak. I think a gatorback or a polycog belt are more unlikely to squeal.
Advanced
Joined: May 2005
Posts: 57
Likes: 0
From: Zephyrhills FL
I just bought an '02 Z with the same issue...small squeak and you can visibly see the crank pulley wobble a bit at idle. Was told by a Chevy tech that if it runs fine and does not miss not to "waste my money" on replacing the pulley/balancer - that a lot of Corvette's have this issue. Is there any truth to this? Would the balancer wobbling negatively affect anything else in the engine? Car runs great overall...just worried.
Intermediate
Joined: May 2006
Posts: 30
Likes: 0
From: Livingston New Jersey
glerma.....mine squeaked too! spray water on the belts. if it stops for a couple of seconds and comes back, its your belts, or at least one of them. if not, then its a pully or tensioner for sure. did you try this yet? I know the "squeal" you are talking about. belts make all sorts of different pitches. my father's R.V. squealed like a stuck pig! I put Gator Backs on both the a/c and the main sepentine. it's quiet now and has not squeaked since....no more embarring moments at the street lights.
Thread Starter
Burning Brakes
Joined: Mar 2004
Posts: 842
Likes: 4
From: Corpus Christi TX
St. Jude Donor '05
glerma.....mine squeaked too! spray water on the belts. if it stops for a couple of seconds and comes back, its your belts, or at least one of them. if not, then its a pully or tensioner for sure. did you try this yet? I know the "squeal" you are talking about. belts make all sorts of different pitches. my father's R.V. squealed like a stuck pig! I put Gator Backs on both the a/c and the main sepentine. it's quiet now and has not squeaked since....no more embarring moments at the street lights.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
