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

Battery/Altenater not charging....

  • Thread starter Thread starter Guero
  • Start date Start date Nov 11, 2007

Guero

Active Member
Oct 11, 2005
2,148
0
47
Nov 11, 2007
#1
  • Nov 11, 2007
  • #1
Its a brand new battery and altenater......What else should I look???
 

Guero

Active Member
Oct 11, 2005
2,148
0
47
Nov 11, 2007
#2
  • Nov 11, 2007
  • #2
Do I need to ground it? If so how?
 

Blackened302

Active Member
Jul 21, 2005
1,439
0
36
South TX
Nov 11, 2007
#3
  • Nov 11, 2007
  • #3
i was gonna say check all your connections, especially your grounds.

from what i understand, there should be a ground going like this:
(-) battery terminal > engine block > chassis
 

Guero

Active Member
Oct 11, 2005
2,148
0
47
Nov 11, 2007
#4
  • Nov 11, 2007
  • #4
You mean-----Altenater>(-) battery terminal > engine block > chassis
 

Bosko5.0

Active Member
May 18, 2006
1,067
0
37
longwood, FL
Nov 11, 2007
#5
  • Nov 11, 2007
  • #5
there is also a ground behind the drivers side kick panel. that ground caused my car to not charge properly. I spent like $200 to have someone else find it and fix it in 5 minutes!
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Nov 11, 2007
#6
  • Nov 11, 2007
  • #6
No more > < : D I $ % symbols. I'm not 100% sure what you guys are implying. :-> <_ sentences.

I think I know the issue. If not, see the following paragraphs for questions. Be sure the I circuit on the regulator is seeing some voltage. If this is not there, the alt has no clue that you want it to work. If you removed the stock gauge cluster (I think you were going to Guero), this circuit got hosed. I have an easy fix (costs 99 cents) if this is what has happened.


If that's not it, a couple things come to mind:

The alternator achieves ground through its bracket, and the bracket is grounded to the engine, which is grounded to the chassis.

I'd want to confirm that the charge cable is ok, its circuit protection didn't blow, the sense fuse didnt blow, the alt is getting the signal to excite and so on.

If the car cranks, we can probably assume the battery is connected decently.

The A terminal on the alt's regulator should show VERY close to the same voltage as the big stud on the back of the alt. And this should obviously be over 14.0 volts when you start the car and never drop below 12.6 volts.

Good luck.
 

Guero

Active Member
Oct 11, 2005
2,148
0
47
Nov 12, 2007
#7
  • Nov 12, 2007
  • #7
Well My stock Cluster is still on and the only things working are the lights and the fuel level and voltage reader.. And the brake on light as the battery symbol.....I will definetly check all that out hissin....I just got of work so ill wait till tomorrow morning
 

94-302-vert

Active Member
Aug 16, 2004
1,947
2
36
NE CT
Nov 13, 2007
#8
  • Nov 13, 2007
  • #8
Guero, With the conversion to Carb I am sure the lack of ECM is giving you many of these failures.
 

Guero

Active Member
Oct 11, 2005
2,148
0
47
Nov 13, 2007
#9
  • Nov 13, 2007
  • #9
Whats the emc? You mean the PCM? Same difference?
 

diablostang

New Member
Sep 21, 2004
425
0
0
Raleigh, NC
Nov 13, 2007
#10
  • Nov 13, 2007
  • #10
Is it not reading any voltage off the alt?
 
You must log in or register to reply here.

Similar threads

S
2005 Ford Mustang Replacement Radio
  • Sambo1964
  • Jan 22, 2026
  • The Welcome Wagon
Replies
1
Views
135
The Welcome Wagon Jan 22, 2026
Sambo1964
S
S
All power lost at crank
  • saf_blu302
  • Mar 7, 2026
  • 1994 - 1995 Specific Tech
Replies
4
Views
234
1994 - 1995 Specific Tech Mar 12, 2026
General karthief
3
Rear mounted battery distribution blocks?
  • 387lx
  • Mar 9, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
5
Views
302
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Mar 14, 2026
JD1964
Fox Jump/start - Charging
  • PonyGTrider
  • Oct 12, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
8
Views
519
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 13, 2025
PonyGTrider
A
Resolved Electrical Help Please
  • Alabama
  • Jan 22, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
276
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jan 22, 2026
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?