Mysterious Serpentine problem - MustangForums.com



General Tech Ask model specific questions in the appropriate category below. All other general questions within.

Reply
 
 
 
Thread Tools Search this Thread
Old 12-29-2013, 04:47 AM   #1
John Deane
Thread Starter
 
Join Date: Dec 2013
Location: VA
Posts: 2
Default Mysterious Serpentine problem

98 mustang gt

Im not a gear head, but I know a little. Here's my problem.... loud squeaking belt.

Typical right. So I replace belt. Still squeaks.

Figured tensioner is original so replaced it. Still squeaks.

Noticed tensioner is maxed out and hitting stop. This seems to avoid the belt from hitting itself.as gar as I know all components are bolted to block. I don't see any other way of adjusting the length of the belt run, in order to allow the tensioner to apply tension without hitting stop.

I'm using a 97.5 length belt.... my only idea is to get shorter belt but I'm concerned that I'm over looking an unseen problem.

Thanks for any help.
John Deane is offline   Reply With Quote
Old 12-29-2013, 04:59 AM   #2
John Deane
Thread Starter
 
Join Date: Dec 2013
Location: VA
Posts: 2
Default

[/IMG]
John Deane is offline   Reply With Quote
Old 12-29-2013, 07:59 AM   #3
dawson1112
5th Gear Member
 
Join Date: Jul 2012
Location: ohio
Posts: 3,509
Default

First thing I would do is pull the belt and check all the accessory's IE, alternator, power steering, water pump, ac compressor, air pump. Make sure all those pulleys spin free with no bearing noise or resistance. The only one that will have some resistance is the power steering pump, but you should still be able to easily spin it by hand. If any of those are hard to turn by hand it means that the bearings are likely going out and causing the belt to slip.

You should also make sure all the pulleys line up , if one pulley is even a half a rib out of alignment it puts the belt in a bind and can cause squealing.

Also make sure none of the pulleys have burnt rubber in the grooves, or any oil . Make sure they are dry and no coolant is getting on them. A coolant leak will cause slipping and squealing .
dawson1112 is offline   Reply With Quote
Old 12-29-2013, 09:35 AM   #4
Chromeshadow
3rd Gear Member
 
Join Date: Apr 2011
Location: Wisconsin
Posts: 918
Default

The main pulley on the crank is probably worn smooth. This can happen when you let the belt slip long enough. You can rough it up with 200 grit sand paper. It will take some time, you need to sand 90 degrees to the pulley, not the same direction that the belt slips. It'll prob take 20 minutes or so. You may need to replace the belt again when you do this. The best thing is to take the pulley off and sand blast it, but you'll need a pulley remover and a sand blaster.
Chromeshadow is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
A/C Port locations vargas 4.6L (1996-2004 Modular) Mustang 7 06-17-2017 01:17 PM
2007 Won't stay running -- Possible electric problem Seanam V6 S197 General Discussion 5 10-04-2015 11:15 AM
1996 GT Studdering problems.. Need Help stangin1996gt 4.6L (1996-2004 Modular) Mustang 0 09-21-2015 12:01 PM
O2 sensors Big Al's 03 Mach 1 Section 4 09-21-2015 08:59 AM
O/R H pipe install car is now stalling when coming to a stop trashxtrash 4.6L (1996-2004 Modular) Mustang 4 09-20-2015 11:49 PM


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

Forum Jump

Advertising
Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 11:16 AM.


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.