HELP Alternator Q's
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From: Raleigh USA
HELP Alternator Q's
I was fiddling with the wires from my alternator a few days ago, and i can't remember how they go back. I have three wires. one big Black and orange one which I didnt mess with. then i have a white/black wire and a orange blue wire. I tested the orange blue, and it seems to be the ground, but my chiltons says to put it on the field terminal. I really need to get this hooked up right, so any help would be appreciated
1985 Blue and White Bronco XLT, 351HO 4bbl, C6, NP208 ,9" 3.55 limited slip, Warn Premium Hubs, Quad Front Shocks, Dual Flowmaster 50's, BFG 32x11.5 ATko's
1985 Blue and White Bronco XLT, 351HO 4bbl, C6, NP208 ,9" 3.55 limited slip, Warn Premium Hubs, Quad Front Shocks, Dual Flowmaster 50's, BFG 32x11.5 ATko's
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From: DeQuincy, LoUiSiAna
HELP Alternator Q's
[updated:LAST EDITED ON 20-Aug-02 AT 10:12 PM (EST)]Hey Philip!
Man you came to the right place for info! If you scroll on down the message board you`ll see a post that has " How many wires?" . It`s a wiring diagram to the alt. It`s also a life saver. Thanks to franklin2!
I had my field wire run to the ground and it was shorting my system out. I finally got it right and it`s stayed charged every since. The orange and blue is definatly the field--marked "F" on the volt. reg. & marked "FLD" on your alt. The hot wire comes from the silinoid. The "Batt"(hot) and the "FLD" are side by side and the "GRND" is kinda off to itself. I had to run my own ground because i din`t have one. Check out the diagram , you`ll see. Good Luck !!! Will
`82 F-250--4x4-- 351W 39.5- 15x 16.5 SS TSL`s-- 6" lift-- Adding goodies by the week!! If you can`t run with the big dog`s , stay on the porch!!!
Man you came to the right place for info! If you scroll on down the message board you`ll see a post that has " How many wires?" . It`s a wiring diagram to the alt. It`s also a life saver. Thanks to franklin2!
I had my field wire run to the ground and it was shorting my system out. I finally got it right and it`s stayed charged every since. The orange and blue is definatly the field--marked "F" on the volt. reg. & marked "FLD" on your alt. The hot wire comes from the silinoid. The "Batt"(hot) and the "FLD" are side by side and the "GRND" is kinda off to itself. I had to run my own ground because i din`t have one. Check out the diagram , you`ll see. Good Luck !!! Will
`82 F-250--4x4-- 351W 39.5- 15x 16.5 SS TSL`s-- 6" lift-- Adding goodies by the week!! If you can`t run with the big dog`s , stay on the porch!!!
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From: Raleigh USA
HELP Alternator Q's
Thanks for the diagram. I hooked the wires up as shown, but still no luck. if i wanted to measure the voltage coming out of my alternator with a voltmeter, where on the alternator would i put my probes?
1985 Blue and White Bronco XLT, 351HO 4bbl, C6, NP208 ,9" 3.55 limited slip, Warn Premium Hubs, Quad Front Shocks, Dual Flowmaster 50's, BFG 32x11.5 ATko's
1985 Blue and White Bronco XLT, 351HO 4bbl, C6, NP208 ,9" 3.55 limited slip, Warn Premium Hubs, Quad Front Shocks, Dual Flowmaster 50's, BFG 32x11.5 ATko's
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HELP Alternator Q's
If it is mounted on the engine with the engine running.
You can measure the voltage at the battery posts.
Red to +
Black -
Most auto parts places will test you alt for free.
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You can measure the voltage at the battery posts.
Red to +
Black -
Most auto parts places will test you alt for free.
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Joined: Mar 2002
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From: Raleigh USA
HELP Alternator Q's
I realize that you can test the charging system by putting a volt meter on the battery terminal. I have done this numeral times and it doesnt seem to be charging properly. My question is where should i put my leads on the alternator itself to make sure that the wiring is at fault, not the alternator itself. Maybe someone has some suggestions for bench testing an alternator? Sorry for the misunderstanding and thanks for ya'lls help.
1985 Blue and White Bronco XLT, 351HO 4bbl, C6, NP208 ,9" 3.55 limited slip, Warn Premium Hubs, Quad Front Shocks, Dual Flowmaster 50's, BFG 32x11.5 ATko's
1985 Blue and White Bronco XLT, 351HO 4bbl, C6, NP208 ,9" 3.55 limited slip, Warn Premium Hubs, Quad Front Shocks, Dual Flowmaster 50's, BFG 32x11.5 ATko's
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From: DeQuincy, LoUiSiAna
HELP Alternator Q's
Hey Phillip!! Man I sure hope you get everything worked out!! Maybe the alt. is junk! I bought an alt. from a parts house, went home and put it on for nothing. The diodes were bad or maybe didn`t even have any!! Your best bet is to bring it to the auto store and let them bench test it. Their machine can tell you exactly what is wrong with the alt. !! As for as testing the wires, I don`t have a clue. But, I know the other way works. Have `em test the new one before you leave!! Just a few brain storms!! Good Luck
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HELP Alternator Q's
the wire with the large ring connector is the wire that gose back to the battery. that would be the one that you have to tighten with the nut. :-X12
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Senior User
Joined: Mar 2002
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From: Raleigh USA
HELP Alternator Q's
Thanks for all your help guys... i finally found the problem, and it had nothing to do with me. Carquest sent me a faulty alternator, so i just swapped in a new one and she charges great now.
1985 Blue and White Bronco XLT, 351HO 4bbl, C6, NP208 ,9" 3.55 limited slip, Warn Premium Hubs, Quad Front Shocks, Dual Flowmaster 50's, BFG 32x11.5 ATko's
1985 Blue and White Bronco XLT, 351HO 4bbl, C6, NP208 ,9" 3.55 limited slip, Warn Premium Hubs, Quad Front Shocks, Dual Flowmaster 50's, BFG 32x11.5 ATko's