alternator brown wire -
LinkBack Thread Tools
post #1 of 3 Old 09-18-2013, 09:57 AM Thread Starter
Registered User
1982 CJ7 
Join Date: Jul 2013
Location: Vershire
Posts: 9
alternator brown wire

I am curious about the brown wire that goes to the GM type alternator on my CJ7, I have the Mopar MPI kit and the kit strongly recommends putting a diode (?) in line with that wire to protect the engine computer. I recently found that the way the folks did it on my truck allowed the diodes solid core wire to break thus disconnecting the wire from the alternator. Yet everything still works Ok... So what does this wire do?!?! I cannot find a clear view of it in any of the wiring diagrams I have seen...

One side note; my alternator does like to charge at just in the green arc around 12v OR way up at the top of the green arc at 14v. I have been told that is normal but I wonder about that. sometimes my battery will seep from the caps. I don't think that is normal. Any input?


ChrisEaton82 is offline  
Sponsored Links
post #2 of 3 Old 09-18-2013, 12:29 PM
Registered User
1985 CJ7 
Join Date: Jun 2003
Posts: 4,185

85 CJ7 258, borla header, Team Rush, MC2100 ,optima batt, Warn 8274, agr super box 2 & pump, T5 w/ B&M shifter, centerforce 2, superior 1 piece axles, warn hubs 2.5 in lift, 31" BFG MT

85 CJ7 258, A/C, T176, MC2100, Team Rush, Warn XD8000i, superwinch hubs, 3in lift 31" BFG AT/KO
wm69 is offline  
post #3 of 3 Old 09-20-2013, 08:49 AM Thread Starter
Registered User
1982 CJ7 
Join Date: Jul 2013
Location: Vershire
Posts: 9
Wow, great link thanks!

I did hook it up, no changes anywhere that I can see, I think I will check that diode....
ChrisEaton82 is offline  

alternator , charging , wiring

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome