Help with chirping sound under hood.
Thread Starter
☠☣☢ Semper Ebrius ☢☣☠
Joined: Jun 2001
Posts: 83,301
Likes: 4
From: Virginia
Cruise-In IV-V-VI-VII Veteran
St. Jude's Donor '06
Help with chirping sound under hood.
I have the chirping sound under the hood, but only when the car is in gear and not moving.
It sounds like it's coming from the alternator, but I've heard that the idler pulley is the culprit or else the belt. Does anyone have the full text of TSB #99-06-01-007? Does anyone have part numbers for the belt, alternator, and idler pulley? In fact, does anyone even have directions on how to replace the pulley (if that's what it is?) I know I could get this done under warranty, but I don't trust the dealerships around here.
Thanks
[Modified by Scissors, 1:33 PM 10/4/2001]
It sounds like it's coming from the alternator, but I've heard that the idler pulley is the culprit or else the belt. Does anyone have the full text of TSB #99-06-01-007? Does anyone have part numbers for the belt, alternator, and idler pulley? In fact, does anyone even have directions on how to replace the pulley (if that's what it is?) I know I could get this done under warranty, but I don't trust the dealerships around here.
Thanks
[Modified by Scissors, 1:33 PM 10/4/2001]
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 32
From: Central Florida
Re: Help with chirping sound under hood. (Scissors)
I had my tensioner pulley and surpentine belt repaced yesterday at Sport Chevrolet. That repair and adjustment of the parking brake were done well.
From my repair ticket for the squeaky pulley, here are the part numbers:
tensioner, 000 012568181, sell price $51.45
belt, 000 012572188, sell price $25.13
labor 0.2 hours, sell price $14.79
Ranger
From my repair ticket for the squeaky pulley, here are the part numbers:
tensioner, 000 012568181, sell price $51.45
belt, 000 012572188, sell price $25.13
labor 0.2 hours, sell price $14.79
Ranger
Burning Brakes
Joined: Dec 2000
Posts: 993
Likes: 5
From: Cincinnati Ohio
Re: Help with chirping sound under hood. (Scissors)
Scissors,
TSB #99-06-01-007 is named: Accessory Drive Squeak (Replace Idler Pulley).
My 1999 C5 coupe (A4) had the chirp or squeak. The dealer replaced the idler pulley (per the TSB) with revised/updated part #12564401 - Idler Pulley Assembly. The new pulley has a thicker dust shield to prevent distortion. The "old" pulley has a thickness of .61 mm and the new part is 1.37 mm.
The TSB states, "The idler pulley dust shield may distort during assembly due to torquing of the mounting bolt. This distortion may cause the idler pulley dust shield to contact the bearing race and the pulley resulting in the squeak noise."
The TSB applies to 1997-1999 Corvettes, 1998-1999 Camaro and Firebirds with the LS1 engine.
The new pulley eliminated the noise on my C5. Good luck.
1999 White C5 Coupe
