Alternator wires - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Everything Electrical & Electronic Have an electrical problem? Lighting, Alternators, gauges, DIC, HUD, etc? Post it here. Please post Audio problems in the Audio forum, and Engine control problems in the appropriate Mechanical forum for your year.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-12-2006, 08:37 PM   #1
Senior Member
True Car Nut
Thread Starter
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default Alternator wires

Ok. My 95 alt has two wires coming from it. One power wire from the alt to the battery and one red wire that plugs into the alt as a voltage regulator?
Pic: Name:  Picture.jpg
Views: 34
Size:  103.7 KB
I think later years came with two wires that went went into that plug.
What exactly are the wires that plug into the alt and what is the difference between the one and two wire plugs?
95naSTA is offline   Reply With Quote
Old 03-14-2006, 06:11 PM   #2
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default Re: Alternator wires

Quote:
Originally Posted by 95naSTA
Ok. My 95 alt has two wires coming from it. One power wire from the alt to the battery and one red wire that plugs into the alt as a voltage regulator?
I think later years came with two wires that went went into that plug.
What exactly are the wires that plug into the alt and what is the difference between the one and two wire plugs?
The one wire configuration would have to be field excitation to the rotor as in your 95. You need generator field current for generator power output. The alternator is an AC generator (rotating field with delta stator) with a bridge rectifier hanging on it to produce 12 vdc. The newer year cars have solid state regulators with three wire connectors at the alternator in addition to the main output (alternator output) to the battery. Two of the leads come from the PCM for Generator Turn On Signal & Generator Field Duty Cycle Signal. The 3rd lead (voltage sensing) is for the Dash Integration Module to run the Battery Voltmeter on the Instrument Panel Cluster.
markwb is offline   Reply With Quote
Old 03-15-2006, 09:52 PM   #3
Senior Member
True Car Nut
Thread Starter
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default

So, do you know if I would be able to try this voltage mod?
From ZZP'* site:
Quote:
Forget about the voltage booster kits. That'* a lot of money for something that can be done for cheap!
Besides that, who needs brighter headlights and a faster warming seat heater when you have the car floored?
By installing a 1 amp diode in the orange 12 volt reference wire you can raise your system voltage by 1/2 a volt. Cut the orange wire and install the diode in series with the stripe facing the alternator.
*This is compatible and works very well with our alternator rewire. The alt rewire does something different. While this mod raises the voltage that the alternator actually puts out, the rewire kit delivers that efficiently and without the resistance losses in the factory wire.
http://www.zzperformance.com/grand_p...les1.php?id=48
95naSTA is offline   Reply With Quote
Old 03-16-2006, 07:12 AM   #4
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default

They are calling out cutting the orange wire and placing the diode in series. Thier pic shows two wires at the connector for the alternator. I'm inclined to think this mod would not be compatible with your existing one red wire set up. But I'm not entirely sure. You could contact tech support at ZZP, no?
markwb is offline   Reply With Quote
Old 03-16-2006, 12:10 PM   #5
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Just making sure... We all know that the PCM supplies a power source for the alternator... I believe its 9-12v supplied to the Alt to lite the fields( No I do not totally understand alternators ) In the 95'* they generally produce 14-14.5v when cold, after they have ran a while and the battery has charged a bit they usually run in the 13v range...

The later 00+ with the newer style Delphi alternators put out 14v all of the time don't they?

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 03-16-2006, 12:12 PM   #6
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

My 97 runs in the 13'* and has a new reman'd delco on it.
BillBoost37 is offline   Reply With Quote
Old 03-16-2006, 12:12 PM   #7
Senior Member
True Car Nut
 
Join Date: Jun 2004
Location: Rochester, NY (college)
Posts: 6,182
Thanks: 0
Thanked 0 Times in 0 Posts
corvettecrazy is on a distinguished road
Default

Quote:
Originally Posted by jr's3800
Just making sure... We all know that the PCM supplies a power source for the alternator... I believe its 9-12v supplied to the Alt to lite the fields( No I do not totally understand alternators ) In the 95'* they generally produce 14-14.5v when cold, after they have ran a while and the battery has charged a bit they usually run in the 13v range...
my 96 does that too. 14-14.4/5 when cold and mid 13'* when hot. Along the same lines, is there a way to get it to run in the 14-14.4 range all the time?
corvettecrazy is offline   Reply With Quote
Old 03-16-2006, 12:42 PM   #8
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

you would have to trick the Regualtor in the Alt to demand the 14+ all the time.....and i dont think that the Battery would last long with the Alt Cooking the battery with 14+ all the time
1993 SLE is offline   Reply With Quote
Old 03-16-2006, 01:02 PM   #9
Senior Member
True Car Nut
Thread Starter
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default

My 95 does the 14-14.5 cold then 13 hot too.
What I wanted to do is run an underdrive alt pulley along with this mod.
95naSTA is offline   Reply With Quote
Old 03-16-2006, 04:11 PM   #10
Senior Member
True Car Nut
Thread Starter
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default

I e-mailed Zoomer and he said he wasn't sure if it would work.
95naSTA is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Whiney alternator - update - probably not the alternator vital49 2000-2005 11 02-05-2008 10:52 PM
Wires, wires, everywhere.....what to do, what to do..... willwren General GM Chat 23 08-19-2005 05:48 AM
plug wires...what's best? bonnie94ssei Performance, Brainstorming & Tuning 5 11-03-2002 04:32 PM
Nokia Cell Phone Kit - What wires go where? jamespooley General GM Chat 2 09-03-2002 06:28 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



All times are GMT -4. The time now is 10:40 PM.


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.