Wiring issues, Need help - JeepForum.com

 
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post #1 of 7 Old 07-22-2010, 06:18 PM Thread Starter
zombiereaper205
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Wiring issues, Need help

OK well when i got the jeep i had no charge from the alternator, had it tested they said it was good. was told it might be wiring and have not 1 brown wire for alternator i have 3 for some reason in the harness, am i loosing my mind need help fast. plz, will be posting pics asap

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post #2 of 7 Old 07-22-2010, 08:26 PM
Ken4444
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Welcome to Jeepforum! You did the right thing by having the alternator tested. That rules out one potential problem.

Here is a basic diagram that shows how the alternator should be wired:



Note that your Jeep may have a different type of alternator, so we should confirm that first.

"I give you a republic, if you can keep it." - Benjamin Franklin
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post #3 of 7 Old 07-22-2010, 11:17 PM
Trapshooter
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Quote:
Originally Posted by zombiereaper205 View Post
OK well when i got the jeep i had no charge from the alternator, had it tested they said it was good. was told it might be wiring and have not 1 brown wire for alternator i have 3 for some reason in the harness, am i loosing my mind need help fast. plz, will be posting pics asap
I have to ask...how do you know the alternator is not charging? What method of troubleshooting did you use to determine the problem.

Here is a quick and dirty method to determine whether alternator is working.

Start the engine and remove the negative battery terminal. If the engine continues to run the alternator is fine, if the engine dies, the alternator or wiring is bad.

Additional information would be helpful to determine what you have going on. Details of the symptoms you are experiencing are needed.

Good Luck and welcome to the Jeep Forum.......

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post #4 of 7 Old 07-22-2010, 11:27 PM Thread Starter
zombiereaper205
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i have tried that method also, have started the jeep and removed the battery cable, she just died. so i have come to the conclusion that it had to be wiring since i had the alternator tested. i will tell you what kind of alternator it is in the morning and maybe that will help out a lil bit. thanks for all ur help so far
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post #5 of 7 Old 07-22-2010, 11:39 PM
Trapshooter
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Start checking the terminal ends on your cables. Many times they look good but have corrosion or are only hanging on by a few strands. I have been fooled more than once by a bad cable.

Posting some pictures would also be helpfully.

'86 CJ7, 258, Carter BBD, Nutter'ed, TeamRush'ed, T-18, Twin Sticked Dana 300, D30 Frt-Pwr Lok L/S-4.10, AMC 20 Rear-Mosers-Detroit Locker-4.10, 2.5 BDS Lift, 1" Body Lift, 33" Wild Country M/Ts, Black Spoke wheels

'45 CJ2A, L134 Go Devil, T-90 Tranny, Warn O/D, T-18 T-Case, Dana 25 Frt, Dana 41 Rear, 531st CJ made

My 401 build: http://www.jeepforum.com/forum/f8/tr...build-1338277/
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post #6 of 7 Old 07-23-2010, 02:04 PM Thread Starter
zombiereaper205
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well lets start by saying its not the cables but just in case i brought new ones today, and its a delco alternator. talked to a few mechanic friends today and they said i should try a one wire alternator since i had wiring problems, do yall think thats a good idea ? still working on the pics sry
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post #7 of 7 Old 07-23-2010, 05:06 PM
ioport51
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I have a cs 144 GM alternator on my 4.2. it is a pretty easy swap can be found on lots of Cadillacs and is 140 amp +-
Mine was built by Rush power systems and has a remote voltage regulator, non avalanche diode pack and a life time warranty.
I have been told that one wire alternators are not the best way to go, especially if you pull amps from a winch, lights, air compressor Etc.
If you go with a larger alternator be sure to use a larger cable between it and the solenoid.

"here baby, hold my beer, I want to try something."
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alternator , charging , circuit , exciter wire , wiring , wiring harness

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