yj screaming altenator belt - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-28-2011, 10:20 AM   #1
Jeeper
 
Join Date: Jul 2010
Location: West Sussex England
Posts: 16
yj screaming altenator belt

My 1987 YJ 4.2 has a habbit of the Aternator belt screaming
have changed the belt three times now (now have a USA supplied belt) but
still screames over 35mph.

Do I need a new alternator ? some one mentioned pullys but I belive that
is attched to the shaft running through the alternator. Does any one else suffer from or has sufferd from the screaming belts ?

Also a vacume problem, can not fined any split hoses but on de-acceleration
at times she cuts out. Have new distrib cap fitted and about to fit new plug lead's..... any ideas ?

Otherwise my Jeep is great, trying to locate new oil breather grommets
as the current ones keep coming out any ideas where I can get some
no one seems to be able here in the UK to help ???????

Thanks

Robspier

Robspier is offline   Quote Quick Reply
Old 03-28-2011, 12:06 PM   #2
Jeeper
 
billytheyj's Avatar
 
Join Date: Aug 2010
Location: Elko, NV
Posts: 1,320
Now the only thing I'm really able to comment on is your belt screaming. When alternators start going out they can start to become more difficult for your belt to turn. So essentially your alternator may be on its way out.... As far as vacuum lines I am fighting those darn things also! Good luck hoped I helped a little bit.

__________________
OHHHH BOOOO!!!!!!!!
billytheyj is offline   Quote Quick Reply
Old 03-28-2011, 12:38 PM   #3
Jeeper
 
Undead-89's Avatar
 
Join Date: Feb 2011
Location: Loveland, CO
Posts: 760
mine was screaming just before it died AND every time I decelerated the engine would try to cut out. Once I replaced my alternator both problems went away. It seems the alternator with it's bad bearing was loading down the engine so much it would try to stop it.
Undead-89 is offline   Quote Quick Reply
Old 03-28-2011, 07:14 PM   #4
Newb
 
Join Date: Mar 2011
Posts: 1
Bad Memories... just a thought, but i had similar "screams" from my 93. After numerous belts, i tried the process of elimination (by cost, least to most expensive). Bypass the air conditioning pump, 2 new idler pulleys, bypass the pulleys, new water pump, new alternator. Every thing i did stopped the squeal for a day or two but it kept coming back. In the power steering pump was next when i came across an article in one of the forums for the "Harmonic Balancer". Well that was it! A lot of trial and error but most everything I have put in is new and I shouldn't have to worry about much under the hood. Good luck!
JohnnyLock is offline   Quote Quick Reply
Old 03-28-2011, 07:58 PM   #5
Jeeper
 
Join Date: Feb 2011
Posts: 52
It sounds to me like a bad alternator might be the culprit here, but you could also try something as simple as tightening the belt. I have seen belts that would scream just because they were too loose.
Snowbird87 is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Paris Hilton..back to jail screaming and kicking SportsGal501 Off-Topic 36 06-09-2007 10:23 AM



» Featured Product

All times are GMT -5. The time now is 03:31 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC