• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

Electrical Blew Up My Alternator!

  • Thread starter Thread starter Yellow302
  • Start date Start date Jun 8, 2013

Yellow302

Member
Mar 2, 2003
789
2
19
NJ
Jun 8, 2013
#1
  • Jun 8, 2013
  • #1
I have had it maybe in the car for 1 month, took it for 1 20 mile ride. working good.

today I finaly am getting on the car. pull to 4k rpm and POP... BUZZZZZ, it sounded like i was dragging a belt the whole way home. I pop the hood, belt is on. There is an electrical buzz sound coming from the alternator now.

Could the bearing have gone in it? I youtubed some videos and the noise is simmilar to those that state the berring is gone.

Any enlightenment to this would be great.
 

Yellow302

Member
Mar 2, 2003
789
2
19
NJ
Jun 8, 2013
#2
  • Jun 8, 2013
  • #2
Also sounds like pebels in a can.
 

Yellow302

Member
Mar 2, 2003
789
2
19
NJ
Jun 8, 2013
#3
  • Jun 8, 2013
  • #3
Can a low battery, lets say 11.9v kill an alternator?
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,302
1,645
214
Acworth, GA
Jun 13, 2013
#4
  • Jun 13, 2013
  • #4
A low battery can overload an alternator and damage it yes. Don't look at the voltage on the battery, do a full test on it to see how low the charge is.

Kurt
 

Dino Dino Bambino

15 Year Member
Jun 13, 2007
1,672
89
79
Cyprus
Jun 14, 2013
#5
  • Jun 14, 2013
  • #5
Yellow302 said:
Can a low battery, lets say 11.9v kill an alternator?
Click to expand...

It's far more likely that a bad alternator would kill the battery rather than the reverse.

Yellow302 said:
Also sounds like pebels in a can.
Click to expand...

That's the sound of worn ball bearings rattling inside the bearing races.
You could either replace your alternator altogether or have it reconditioned with new front/rear bearings, regulator, and brushes.
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,302
1,645
214
Acworth, GA
Jun 14, 2013
#6
  • Jun 14, 2013
  • #6
Bullitt95 said:
It's far more likely that a bad alternator would kill the battery rather than the reverse.



That's the sound of worn ball bearings rattling inside the bearing races.
You could either replace your alternator altogether or have it reconditioned with new front/rear bearings, regulator, and brushes.
Click to expand...

Agreed. You probably just got a bad alternator. Either way, it should have a warranty right?

Kurt
 

Yellow302

Member
Mar 2, 2003
789
2
19
NJ
Jun 16, 2013
#7
  • Jun 16, 2013
  • #7
revhead347 said:
Agreed. You probably just got a bad alternator. Either way, it should have a warranty right?

Kurt
Click to expand...

Yup, it is warrantyed. I just got the replacement in today. I dont have time to swap it out until next weekend. Hopefully that is all.
 
You must log in or register to reply here.

Similar threads

N
Drivetrain Think I blew my trans first time running at the strip
  • Nismoboyo
  • Jul 15, 2024
  • SN95 4.6L Mustang Tech
Replies
4
Views
634
SN95 4.6L Mustang Tech Jul 16, 2024
85GTStangGuy
M
Progress Thread mnky99 2001 V6 evap core, ac compressor, heater core replacement
  • mnky99
  • Sep 5, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
526
1996 - 2004 SN95 Mustang -General/Talk- Sep 5, 2025
mnky99
M
J
Progress Thread Family member 1989 GT- Backstory and updates
  • JRC99
  • Apr 19, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
15
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 26, 2025
JRC99
J
For Sale 94 Cobra 408w AOD Project For Sale
  • Labora
  • Oct 11, 2024
  • SN95 Mustangs For Sale (1994-04)
Replies
1
Views
1K
SN95 Mustangs For Sale (1994-04) Apr 7, 2025
Labora
Progress Thread H/C Swap Problems/Ideas
  • sav22rem22
  • Mar 31, 2024
  • Fox 5.0 Mustang Tech
Replies
10
Views
2K
Fox 5.0 Mustang Tech Sep 10, 2024
AeroCoupe
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?