Charging system diagram/ question - MustangForums.com



4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Reply
 
 
 
Thread Tools Search this Thread
Old 05-14-2008, 12:01 AM   #1
NeedStangSpeed
3rd Gear Member
Thread Starter
 
Join Date: Oct 2006
Location: New Philadelphia, Ohio
Posts: 786
Default Charging system diagram/ question

Ok, I'm having a charging problem with an 03 GT, and somebody suggested this:
that on the alternator plug there are 2 wires, one goes to the guage, the other goes to some relay?? that lets the regulator know that charge is needed and to activate. I've already changed the alternator, have had the system tested, they say it's not the battery, and says the test shows there was a short. So I guess after this little run down of progress up to this point, I'm wondering if anybody know where this "relay" is, I already checked the fuses, or has a diagram better than what the chilton comes with. Anybody?
NeedStangSpeed is offline   Reply With Quote
Old 05-14-2008, 07:50 PM   #2
NeedStangSpeed
3rd Gear Member
Thread Starter
 
Join Date: Oct 2006
Location: New Philadelphia, Ohio
Posts: 786
Default RE: Charging system diagram/ question

bump... anyone got this one?
NeedStangSpeed is offline   Reply With Quote
Old 05-15-2008, 10:41 AM   #3
cliffyk
TECH SAVANT
 
cliffyk's Avatar
 
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,928
Default RE: Charging system diagram/ question

I saw in another post that you may have resolved this, however here's the charging system diagram...
cliffyk is offline   Reply With Quote
Old 05-15-2008, 12:00 PM   #4
NeedStangSpeed
3rd Gear Member
Thread Starter
 
Join Date: Oct 2006
Location: New Philadelphia, Ohio
Posts: 786
Default RE: Charging system diagram/ question

Thanks I appricate it, but I'm still digging into this. I found the solid yellow wire with white stripe on this diagram, and I'm trying to figure out if that wire goes to anything else, or is it just cut plain and simple like this:

alternator, to fuse, to + power source?

Just making sure before I bridge it. all I see on it is a fuse. I want to make sure nothing controls the current going to it. Or is it as simple as bridging a wire from + terminal of battery to that plug and seeing if it works? The fuse is still good, so this is losing me.


NeedStangSpeed is offline   Reply With Quote
Old 05-15-2008, 12:12 PM   #5
cliffyk
TECH SAVANT
 
cliffyk's Avatar
 
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,928
Default RE: Charging system diagram/ question

It is as simple as you stated--the yellow/white (it's marked YE/WH) wire runs from terminal 3 on the alternator through a 30A fuse, to the battery junction box, to the battery + terminal through the fusible links.[/align][/align]As a poster said in the other thread, it provides battery voltage feedback to the voltage regulator (inside the alternator, which is more correctly a generator as Ford labels it--since itdelivers DC output). This let's the regulator do it's thing. I would not get rid of the fuse, Ford spent money putting it there because it was needed.[/align][/align][/align]
cliffyk is offline   Reply With Quote
Old 05-15-2008, 02:32 PM   #6
NeedStangSpeed
3rd Gear Member
Thread Starter
 
Join Date: Oct 2006
Location: New Philadelphia, Ohio
Posts: 786
Default RE: Charging system diagram/ question

Oh, I wasn't planning on getting rid of the fuse, I just wanted to make sure there was a good connection, and there is, but for some odd reason, still not charging. Back to the drawing board, time to test the alternator again.
NeedStangSpeed is offline   Reply With Quote
Old 07-28-2014, 10:13 PM   #7
ange_421
 
Join Date: Jul 2014
Location: oregon
Posts: 2
Lightbulb charging problem on 2000 gt mustang

I replaced the alternator, and its still has a drain, my battery light has remained on, I have no power to drive it just sucks thelife right outta my battrey, is there a charging relay under my hood in my fuse box, something that is keeping my car from charging correctly?? i really need help on this cuz ive gotta fix it I have nobody else to help me.. so here i am counting on someone who knows whats up it just started draining my battery when i left yesterday and turned on my lights, i replaced alternator today and its not fixed, watched it charge then slowly loose its charge. and my car died..Help please
ange_421 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Wheel Question! (New member, hi folks) Tivo304 New Member Area 4 12-05-2015 08:46 PM
Tuner/air intake dealer service question 04stangman 2005-2014 Mustangs 4 09-17-2015 01:45 PM
Help! Metra 70-5521 AMP Harness Install cbird1177711 2005-2014 Mustangs 2 09-03-2015 08:43 PM
Best Place To Run Power Wire/Firewall '08 cbird1177711 2005-2014 Mustangs 3 09-02-2015 08:51 PM


Tags
05, 11, 2000, 2003, 98, charging, diagram, diagrams, f150, ford, fuse, gt, mustang, schematic, system

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


All times are GMT -5. The time now is 04:45 AM.