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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

Squealing belt

  • Thread starter Thread starter WrightDamienFox
  • Start date Start date Jun 19, 2019
W

WrightDamienFox

New Member
Oct 15, 2018
22
0
1
Minnesota
Jun 19, 2019
#1
  • Jun 19, 2019
  • #1
Alternator went out this weekend went and bought a 3g alternator got it install and now when I rev it over 1500rpms I get a very intense and loud squeal. Poured water on the rib side of the serpentine belt and it goes away. What is going on?
 
1

1990 5.0 LX

Member
Apr 11, 2019
37
19
18
Ben Lomond, CA
Jun 19, 2019
#2
  • Jun 19, 2019
  • #2
Sounds like the serpentine belt isn't tight enough or the alternator is putting up a lot of resistance. The water treatment is probably just making the whole shooting match slip.
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
27,827
10,508
203
polk county florida
Jun 19, 2019
#3
  • Jun 19, 2019
  • #3
Check the pulley, it should be the same size as the old pulley.
Also replace the belt, not very expensive.
 
W

WrightDamienFox

New Member
Oct 15, 2018
22
0
1
Minnesota
Jun 19, 2019
#4
  • Jun 19, 2019
  • #4
General karthief said:
Check the pulley, it should be the same size as the old pulley.
Also replace the belt, not very expensive.
Click to expand...
I took the belt off and hand spun the alternator and it was very squeaky hand turning it. So I’m assuming that is the problem
 
W

WrightDamienFox

New Member
Oct 15, 2018
22
0
1
Minnesota
Jun 19, 2019
#5
  • Jun 19, 2019
  • #5
1990 5.0 LX said:
Sounds like the serpentine belt isn't tight enough or the alternator is putting up a lot of resistance. The water treatment is probably just making the whole shooting match slip.
Click to expand...
Turned out to be a squeaky alternator after hand spinning it
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
27,827
10,508
203
polk county florida
Jun 20, 2019
#6
  • Jun 20, 2019
  • #6
Dang, I hate being wrong! and that would be most of the time
 
1

1990 5.0 LX

Member
Apr 11, 2019
37
19
18
Ben Lomond, CA
Jun 20, 2019
#7
  • Jun 20, 2019
  • #7
And the alternator was new, right? I hate it when that happens!
 
W

WrightDamienFox

New Member
Oct 15, 2018
22
0
1
Minnesota
Jun 22, 2019
#8
  • Jun 22, 2019
  • #8
1990 5.0 LX said:
And the alternator was new, right? I hate it when that happens!
Click to expand...
What a total headache lol
 
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