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Topic: I need a new alternator. (Read 10267 times) previous topic - next topic

I need a new alternator.

Reply #45
Jay your in box is full.
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

I need a new alternator.

Reply #46
Now I'm REALLY being hijacked!

I need a new alternator.

Reply #47
lol,, yeah i got the VW stuff tom

86,~ that depends ,,does sound odd, did you verify your 3g wiring to the diagram here?

I need a new alternator.

Reply #48
Jcassity,
          Thanks! I just took a look at the schematic you posted and it is exactly like I have my alternator wired. The differences are that I still need the 6 ga. wire (I'm using the stock wire for now) and like I said in an earlier post I'm not getting the AMP. light to light up for me. I also took a reading at the alternator and the out put voltage was only 10.77 volts. My buddy will be coming over and we will hit this issue hard. If necessary I will take this alternator back and have them check it.

I need a new alternator.

Reply #49
If you don't have the ignition switch voltage on the LG/R wire to the "I" terminal of the built-in regulator, this is your problem.
It was also the problem with your old alternator.
I should have said earlier to check for the voltage with the ignition in RUN and the connector UNPLUGGED from the Alt Reg.
The Alt warning light has a resister in parallel so the Alt will still work if the bulb is burned out.
The same section of the ignition switch feeds the turn signal flasher. Do the turn signals work?
It also feeds the cluster IVR. Does the gas gauge work?

With everything hooked up and the engine running, see if you can rig up a way to momentarlly jumper 12 volts to the LG/R wire at the "I" terminal of the REG to cause the Alt to "turn on".
Once the Alt has an output on the S (stator output) of the alt to the "S" terminal of the Reg it will keep the Alt. "turned on".

I need a new alternator.

Reply #50
Trial and error is always expensive




Wiring issue if memory serves me i think the alt lamp is bridged with a 500 OHM resistor for lamp out conditions. Just a thought!!

Was the alternator FULL FIELDED??? If not WHY???

Battery on charge lug and A terminal (constant from solenoid)  NEEDS TO BE CHECKED

S BRIDGED TO S  NEEDS TO BE CHECKED

Key lamp charge indicator to I NEEDS TO BE CHECKED  (is charge lamp lit with ignition on and engine not running)

Good belt and all should be GOOD IN THE WORLD OF CHARGING SYSTEMS. If 13.9-14.8 Volts is present at the battery with engine running!!!

If not one of the above things is not correct. CHECK IT AGAIN!!!
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

I need a new alternator.

Reply #51
Quote from: jcassity;415136
is there another way to add/remove battery load for troubleshooting purposes?

Yes is your PM box full. If i can i will shoot you a pm on how it is dun safely. Or send me your phone # and we can discuss it Thanks Jay
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!


I need a new alternator.

Reply #53
Another place to check the LG/R wire:
Connector C403--LH front fender apr0n below the washer reservoir.

I need a new alternator.

Reply #54
Simple way to trace it is with a trace Tone and probe!!

Did you ground the I lead  at the ALT to check Continuity????  Alt light lit when keyed??

Did you check the I lead  with a test light to ground???? Key it and see if the test light lights. If good it will be DIM

Connect an old fashioned test light from ground to the I LEAD and key the car. Does the ALT LIGHT COME ON??? Again it will be DIM

You have to check this stuff out or you will be chasing balloons AGAIN!!!

904 GR/R  C403 out on 904 LG/R  slight color change through connector.

Trace tone will pin point in 2 seconds if you have an open.


Simple test if you have constant battery on the charge lug and the regulator A punching and the 2 S lugs connected together do this

Connect an old fashioned test light or a bulb and socket like an 1156 and hook one lead to the cars PLUS SIDE OF THE BATTERY. Then connect the other side to the I terminal of the regulator. The light should come on. Then start the engine and the light should go off. If it does go off the battery voltage will clime to 13.9-14.8. This will tell you the alt and regulator is OK. And if it works it will verify your charge indicator lead and alt light is the issue. Did you check fuses that feed the CHARGE LIGHT??? Did you check the BULB IN THE DASH??? It gets key battery through the ignition switch.
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

I need a new alternator.

Reply #55
My buddy is finally coming over to help me out today. I have three print out of schematics that I got here on this forum so that he knows how I want the alternator set up. Right now I am only lacking the 4 ga. red wire. Tom, a lot of those questions you asked me have already been answered, so please go back and read the post. After we finish working on the car, I will get back with you guy's and let you know what I have found. Thanks!

I need a new alternator.

Reply #56
OK if all these answers have been addressed THEN WHY IS YOUR ALTERNATOR STILL NOT CHARGING???

I am willing to bet you did not check a thing any of us posted. Forget me!!!  SOFT TOUCH gave you all you need as well as myself  to fix this did you do what he suggested???

Your Quote 86
 I have three print out of schematics that I got here on this forum so that he knows how I want the alternator set up.

And just how do you want this alternator set up??? Having it CHARGE MIGHT BE A GOOD WAY!!!

Keep chasing BALLOONS i gave you and others as well enough info to fix this. And here we are at post 57 no further along than the original post. Maybe it is me
 I Give UP !!
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

I need a new alternator.

Reply #57
Tom, your just not worth answering. Also, do me a favor and don't bother chiming in on ANY of my posts. Thanks!

I need a new alternator.

Reply #58
Hey guys, I know it won't surprise you, because it didn't surprise me...it was a new, not rebuilt alternator with a lifetime warranty and of course it was bad. I have a rebuilt 3g alternator in my car and it is charging fine. I have the system set up like the schematic jcassity posted. Thanks!

I need a new alternator.

Reply #59
You Bet
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!