General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds
Sponsored by:
Sponsored by: CARiD

Alternator Pulley

Thread Tools
 
Search this Thread
 
Old Oct 2, 2006 | 01:16 PM
  #1  
98redM6's Avatar
Thread Starter
TECH Fanatic
20 Year Member
Photogenic
iTrader: (39)
 
Joined: Mar 2005
Posts: 1,519
Likes: 1
From: Central Cal - Merced County
Default Alternator Pulley

I've had a squeak coming from my alternator pulley for some time now, and I finally decided to replace it. Problem is I haven't been able to find a part number for it. Does anyone have the part number for the stock alternator pulley?

Also if one isn't available, does ASP make a stock sized alternator pulley that'll work the same as stock? I don't want an UD/OD alternator pulley, just a stock working alternator pulley.

Any help would be appreciated.
Reply
Old Oct 2, 2006 | 01:42 PM
  #2  
WhiteRhino's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Nov 2001
Posts: 1,224
Likes: 0
From: NV
Default

I don't see how the altenator pulley could squeel. The pulleyis held onto the shaft by a nut. If a squeeling sound is coming from the altenator, then it's probably the altenator going out.

It could be the idler pulley above it. They are known for going out as well. I would suggest getting a dealer pulley, if it is the problem. I went through 3 Autozone pulleys before I went to the dealer. I haven't had a problem since.

If it is the altenator pulley for sure, pm me your info and I'll send you my stock pulley. I have a 160amp alt. and an overdrive pulley. So I don't need the stock one.
Reply
Old Oct 2, 2006 | 01:59 PM
  #3  
98redM6's Avatar
Thread Starter
TECH Fanatic
20 Year Member
Photogenic
iTrader: (39)
 
Joined: Mar 2005
Posts: 1,519
Likes: 1
From: Central Cal - Merced County
Default

Thanks for the advice. I already had in mind to replace the idler pulley, the tensioner pulley, and the alternator pulley, with GM parts. I'm sure it's the alternator pulley, because when my belt went out, I spun it by hand and it woud squeak with every turn. I'll PM you right now.
Reply
Old Dec 22, 2006 | 06:26 PM
  #4  
Jon7I2's Avatar
Teching In
 
Joined: Sep 2006
Posts: 30
Likes: 0
Default

I hav the exact same problem, and i do not understand how u would change the alt. pulley. wouldn't u just have to switch out the whole alt?
Reply
Old Dec 22, 2006 | 07:02 PM
  #5  
Rons 5.3's Avatar
On The Tree
iTrader: (7)
 
Joined: Feb 2005
Posts: 180
Likes: 0
From: louisville/kentucky
Default

I would put money on the alternator going out, I've seen it several times. Switching the pulley wont help.
Reply
Old Dec 22, 2006 | 07:40 PM
  #6  
blackbirdls1's Avatar
TECH Enthusiast
15 Year Member
Photogenic
iTrader: (5)
 
Joined: Jan 2006
Posts: 682
Likes: 4
From: Oviedo, FL
Default

Alt is going out for sure most likely.
Reply
Old Dec 22, 2006 | 09:55 PM
  #7  
koolaid_kid's Avatar
TECH Junkie
iTrader: (21)
 
Joined: Jul 2005
Posts: 3,023
Likes: 1
From: Indianapolis
Default

Sounds like a bearing in the alternator is failing. The pulley itself is physically unable to squeak or squeal, it is fixed to the shaft.
Reply
Old Dec 22, 2006 | 10:18 PM
  #8  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

My alternator was doing it, and I assure you, it is the alternator itself. I just replaced it, and the squeak went away.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 07:37 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE