Alternator, and belt question - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-13-2004, 02:38 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Nov 2002
Location: Greenville, SC
Posts: 421
Thanks: 0
Thanked 0 Times in 0 Posts
Wolfedog50 is on a distinguished road
Default Alternator, and belt question

Ok.. i Have a couple of questions. What sound should an alternator make when ideling with a mechanics stethiscope. And i was also told that i could take off my supercharger belt, and start my car, to see if it was anything ont hat belt that was causing my problems. Is this true. If i just start it for oh 20 secs. thanks.
Wolfedog50 is offline   Reply With Quote
Old 01-13-2004, 02:47 PM   #2
Junior Member
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

A working alt will still make some noise but it will sound like a quite hum. If the alt is going the pitch usually gets higher and a lot louder.

Oh, and if the bearings are going you can usually hear an uneven rattleing sound as well.
SSEi95 is offline   Reply With Quote
Old 01-13-2004, 02:56 PM   #3
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Nov 2002
Location: Greenville, SC
Posts: 421
Thanks: 0
Thanked 0 Times in 0 Posts
Wolfedog50 is on a distinguished road
Default

Would the bearings shake the car some on idle?
Wolfedog50 is offline   Reply With Quote
Old 01-13-2004, 03:00 PM   #4
Junior Member
 
Join Date: May 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
SSEi95 is on a distinguished road
Default

Not from the alt. If the bearings were all shot ( to the point of seeing it smokeing while trying to turn) it still wouldn't shake the car. Yes, You may feel a slight vibration from it thru stuff, but nothing strong enough to say move the engine on the engine mounts.
SSEi95 is offline   Reply With Quote
Old 01-13-2004, 04:29 PM   #5
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

If your alternator is underproducing power, it may be inducing an ignition under-voltage, which could cause a miss, and shake the engine.
willwren is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Alternator and Belt Tensioner beerbarrel Buick 11 08-23-2014 04:59 AM
Noise--alternator or belt? jdaniels 1992-1999 1 08-06-2010 01:22 AM
Whiney alternator - update - probably not the alternator vital49 2000-2005 11 02-05-2008 10:52 PM
4th PS/Alternator belt in 20,000 miles...WHY DJ SHO 1992-1999 11 03-24-2005 01:35 AM
Trying to replace the alternator but I can't Loosen Belt nat1ve92SSE 1992-1999 4 06-13-2004 10:58 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:11 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.