Which F'in A/C pulley causes the chirping/squeeking!!!??
Thread Starter
Teching In
Joined: Aug 2002
Posts: 26
Likes: 0
From: Palm Harbor, Fl
Which F'in A/C pulley causes the chirping/squeeking!!!?? I have that annoying as* chirp/squeek and have already replaced the idler pulley. It seems the problem is coming from one of the 3 A/C pulleys. Which one could it be and who has the p/n for a replacement?? Thanks!!!
<small>[ August 31, 2002, 05:58 PM: Message edited by: Fusion ]</small>
<small>[ August 31, 2002, 05:58 PM: Message edited by: Fusion ]</small>
Re: Which F'in A/C pulley causes the chirping/squeeking!!!?? Can't answer your question, but I think the some of the squealing issues may be caused by the factory belts. My idler pulley squeaked bad, but when I put on my ASP crank pulley and changed both belts, the noise went away and never came back. Just something you may want to check out.
TECH Fanatic
Joined: Nov 2001
Posts: 1,780
Likes: 7
From: Mi./Al.
Re: Which F'in A/C pulley causes the chirping/squeeking!!!?? I have suggestion on how to find the bad pulley, get a spray bottle of water ( W-D 40 can work but it might be a little messy) with a little dish soap in it and spray each pulley as close to the back side as possible as can.
Staging Lane
Joined: Aug 2002
Posts: 53
Likes: 1
From: Florida
Re: Which F'in A/C pulley causes the chirping/squeeking!!!?? Accessory Drive Belt - Squeak/Chirp Noise
BULLETIN NUMBER: 00-06-01-008
SECTION: 06 - Engine/Propulsion System
DATE: March 2000
SUBJECT: Accessory Drive Belt Squeak/Chirp Noise (Install New Double Row Idler Pulley, Generator Bracket and Serpentine Belt)
MODELS:
1998-2000 Chevrolet Camaro
1998-2000 Pontiac Firebird
Built Prior to VIN Breakpoint Y2107225 with 5.7L V8 Engine (VIN G - RPO LS1)
CONDITION: Some customers may comment on a squeak/chirp noise coming from the accessory drive serpentine belt. The noise will be most noticeable at idle and low engine speeds.
CAUSE: The serpentine belt squeak/chirp noise may be caused by misalignment between the idler pulley and crankshaft pulley. A slight rocking motion of the idler pulley causes the misalignment, which results in noise.
CORRECTION: To correct this condition on vehicles built prior to the above VIN breakpoint, install the new generator bracket, double row idler pulley and serpentine belt following Service Manual procedures.
Important: The new generator bracket can be identified by the depth of the idler pulley mounting pilot. The pilot dimension (2) on the new generator bracket is 10 mm. Dimension (2) on the previous bracket was 8.3 mm.
Here's some prices -
Desc / Part# / Dealer / ALL GM Parts (on-line)
Double Idler pulley / 12563326 / 41.26 / 30.81
Alternator Bracket / 12563327 / 16.18 / 12.08
Serpentine Belt / 12562626 / 31.25 / 20.48
Shipping & Handling - ALL GM Parts - 9.95
TOTAL / Dealer - 88.69 + tax / ALL GM - 73.32
ALL G.M. Parts website -
http://www.parts.com/index.cfm?actio...nt&sfid=213800
Email me for the diagram. Good Luck!
BULLETIN NUMBER: 00-06-01-008
SECTION: 06 - Engine/Propulsion System
DATE: March 2000
SUBJECT: Accessory Drive Belt Squeak/Chirp Noise (Install New Double Row Idler Pulley, Generator Bracket and Serpentine Belt)
MODELS:
1998-2000 Chevrolet Camaro
1998-2000 Pontiac Firebird
Built Prior to VIN Breakpoint Y2107225 with 5.7L V8 Engine (VIN G - RPO LS1)
CONDITION: Some customers may comment on a squeak/chirp noise coming from the accessory drive serpentine belt. The noise will be most noticeable at idle and low engine speeds.
CAUSE: The serpentine belt squeak/chirp noise may be caused by misalignment between the idler pulley and crankshaft pulley. A slight rocking motion of the idler pulley causes the misalignment, which results in noise.
CORRECTION: To correct this condition on vehicles built prior to the above VIN breakpoint, install the new generator bracket, double row idler pulley and serpentine belt following Service Manual procedures.
Important: The new generator bracket can be identified by the depth of the idler pulley mounting pilot. The pilot dimension (2) on the new generator bracket is 10 mm. Dimension (2) on the previous bracket was 8.3 mm.
Here's some prices -
Desc / Part# / Dealer / ALL GM Parts (on-line)
Double Idler pulley / 12563326 / 41.26 / 30.81
Alternator Bracket / 12563327 / 16.18 / 12.08
Serpentine Belt / 12562626 / 31.25 / 20.48
Shipping & Handling - ALL GM Parts - 9.95
TOTAL / Dealer - 88.69 + tax / ALL GM - 73.32
ALL G.M. Parts website -
http://www.parts.com/index.cfm?actio...nt&sfid=213800
Email me for the diagram. Good Luck!
Teching In
Joined: Sep 2002
Posts: 15
Likes: 0
From: Winter Springs, Florida
Re: Which F'in A/C pulley causes the chirping/squeeking!!!?? The way we do it at the dealer is to clean all the belts and pulleys with brake parts cleaner spray,Then put a dab of dielectric silicone GREASE on the front and back of the belts.After i do all the bulletin fixes, this finally works.It will stay quiet for a real long time unless you have an alignment problem or ran through some contaminated rain water.Good Luck
TECH Regular
Joined: Aug 2002
Posts: 400
Likes: 0
From: New Hampshire
Re: Which F'in A/C pulley causes the chirping/squeeking!!!?? [QUOTE]Originally posted by turbohawk:
[QB]The way we do it at the dealer is to clean all the belts and pulleys with brake parts cleaner spray,
Turbo..... The brake parts cleaner is OK for the belt ??
[QB]The way we do it at the dealer is to clean all the belts and pulleys with brake parts cleaner spray,
Turbo..... The brake parts cleaner is OK for the belt ??
Trending Topics
Thread Starter
Teching In
Joined: Aug 2002
Posts: 26
Likes: 0
From: Palm Harbor, Fl
Re: Which F'in A/C pulley causes the chirping/squeeking!!!?? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 11 Bravo:
<strong>Can't answer your question, but I think the some of the squealing issues may be caused by the factory belts. My idler pulley squeaked bad, but when I put on my ASP crank pulley and changed both belts, the noise went away and never came back. Just something you may want to check out.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Turned out to be the A/C belt. Woohoo!! No more embarrasment!!!
<strong>Can't answer your question, but I think the some of the squealing issues may be caused by the factory belts. My idler pulley squeaked bad, but when I put on my ASP crank pulley and changed both belts, the noise went away and never came back. Just something you may want to check out.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Turned out to be the A/C belt. Woohoo!! No more embarrasment!!!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Originally Posted by turbohawk
The way we do it at the dealer is to clean all the belts and pulleys with brake parts cleaner spray,Then put a dab of dielectric silicone GREASE on the front and back of the belts.After i do all the bulletin fixes, this finally works.It will stay quiet for a real long time unless you have an alignment problem or ran through some contaminated rain water.Good Luck
