Alternator not charging

So have you tested the alternator before putting it in?Also tested the alternator out of the car after it was installed to see if there really burning up after they were installed?Also have you checked all the power inputs to the alternator to make sure you don't have a blown fuse bad fuse able link or bad wire?

The alternators I've put in all came from salvage yards. And we assumed to be in working order. I have used a test light to determine power supply. I found that the fuse was good. The main cable going to the alternator powered up when the key was in the on position. However, the 'plug-in', red-n-black ,wires had no power. Even when the car is running. Could this be the 'fuse-able' link? And, where is the link located?

Looking at the wire diagram I see the red wire to the B+ terminal should have battery voltage all the time.Also the red wire going to the L terminal should have power with the key in the run position.Those are the only two I see with power.You need to use a multi meter to make sure there is battery voltage to them
.Also that the alternator case has a good ground to it.

Does the fusible link have anything to do with loss of power to the plug-in connection on the alternator?

The fusible link is the B+ terminal the one held on by A nut.Only the two red wires are supposed to have battery voltage to them.

I do not think you understand my question. I'm not a mechanic. I asked where the fusible link is located. I do not know what the B+ terminal is! As well as the "L" terminal . I also need to know if the fuse-able link could be the problem with the plug in, on the alternator ,not having any power ? As I said before, I'm not real knowledgeable about the wiring of the car. So I need 'simple' responses to my questions. Thank you.

The fusible link is in between the positive side of the battery and the B+ terminal at the alternator. The B+ terminal on the alternator is the one with the nut like I said in my earlier post.Its the only wire held on the alternator with a nut.Also the L terminal is the other red wire going to the alternator.

Thank you, Saturn , I'll check the link to see if it is blown. But I don't think it is. Because the red,(B+), wire that bolts onto the alternator powers up when the key is turned on.
Thanks.

Also make sure the other red wire has battery voltage at the alternator with the key on.Also that the alternator has a good ground to the case of it.Also this needs to be tested with a multi meter.Also what is the battery voltage at the battery with the engine idling?

I put In a new alternator,battery, and the frame/engine block/negative battery ground cable and the light is still on. I feel like the battery isn't getting the recharge from the alternator. I have replaced the wire going from the alternator to the starter. also when I put in the new alternator and battery I had them tested because the battery light was still on and the components passed the tests.

it's obvious you a short in your dash! Ignore the light or remove the bulb.

No, it's not a short in the dash the car runs off of the battery. I'm pretty sure because my car shut off and then I was stranded. I gave it a jump and it started right up once I took off the jumper cables it shut off. then I let the other car run so my battery would charge up so I could move the car. so if I have the jumper cables on it will run forever otherwise it will shut off.

okay, then you did not mention that in your original question. You will need to take a test light or a voltmeter. Check the red wire on the back of the alternator for battery voltage. check the other connector and make sure the wire connectors are plugged in properly. They go to the voltage regulator. If this is all good you need to replace the alternator! I am the light well go out.

I had the alternator tested in the car it failed. said it was a bad regulator. it bench tested fine tested fine. also I got a check engine light for a high voltage for the temperature sensor.

Idle does from above 1000 rpm's then drops below 1000 rpm's after a few minutes of running.

When we tested the alternator, did you have it load tested? Here is a guide that runs through how to ensure it is running well on the vehicle. You can also stop by a parts store and have them testing it.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

More then likely the alternator is not able to carry the needed load due to the regulator not allowing the field current to grow large enough to charge the battery.

I would run through this test or have it tested and go from there.

I just bought a new altinater about 5 months back and its been working fine and just replaced the battery and both positive and negative cables not 3 days ago and the battery is draining and now when i go to turn it over nothing works not even the dome lights i was wondering if you could give any insight of what may be wrong It would help so much.

Hello, you didn't leave a wire unhooked at the starter solenoid? I'm not sure of the litre size of your engine? My info appears to show the charge wire from the generator goes to the starter solenoid, attaches to the same terminal as the positive battery cable.

If you have a digital voltmeter, we can do some testing. You need to make sure the battery has a full charge.

Electrical problem
1998 Pontiac Sunfire 4 cyl Two Wheel Drive Manual

i have a 98 sunfire i put a new alternater and a new battery my alternater will not charge even when the car is on i tun the car on and the battery just drains out i took the alternater back and got another one and still the same thing what else could be the problem for the alternater not charging i was told it could be a parasitic drain but i had it tested and thats not the problem

At the alternator with the key in the run position see if you have battery voltage at the red wire on the B+ terminal and battery voltage at the red wire on the L terminal.Let me know what you find.

You said that the wire from the starter to the alternator was bad.I hope you used a fuse able link in that new wire.There was one you can see it in the diagram i posted if you don't put one back in then if the alternator ever fail's in the future you could have a fire.

yes i used a fusable link cable it was a little thicker than the original but it seems to work just fine now but there's still one thing tho when i shift my car in first , second and third its fine when its in forth it putts a bit wile im on the gas at first i thought fuel filter got a new one ran a fuel line test all my injecters are fine and so are my gas line and relay could it be the feul pump or somthing else for fuel pressure i thaught it was the alternater and battery not working makeing it drive like that but with the new battery and alternatter giving full charge it has to be fuel related bc i also have new spark plugs ,wires, cap, and coil so its not a miss in the engine.

What do you mean when you say when its in forth it putts a bit wile im on the gas at first?

yea it seems like it losses fuel pressure or somthing like its not getting anough gas after i shift ill step on the gas and it will put ill make a pictue the..... is the regular flow and the hbhrbb is the putter heres how it goes first shift second shift third shift forth ................bhbhbhb................bhbbh........bhhbhhb.......... shift to fith

Alright so it's cutting out you could check and see what your fuel pressure is when it's cutting out.That would be a good start.

how would i do that ? it has to be driving in fourth gear i had a shop tell me they did the test and told me the fulinjecters are fine my gas line is fine i have a new feul filter on it so they said thats not the broblem but it still putts

Did they check to see what your fuel pressure was?If so what was it?

Electrical problem
1996 Pontiac Sunfire 4 cyl Front Wheel Drive Automatic 158k miles

I have recently replaced the transmission in my 1996 pontiac sunfire, which i bought from a friend it ran fine other than the transmission was going bad, but after i got it in and thought i was done with the ordeal it seemed the alternator was not doing its job charging the battery as well as poweing the car. went to the junkyard and got one. had it tested at advanced auto parts and they said itwas good. after i put the alternator in and jumpstarted the car (the battery was dead) i was hopeing the alternaor would begin doing as it should. but my car simply runs for a few minutes and then chokes out. if i try to restart there isnt even enough power to turn the engine over, all i hear is a click.

An alternator will not charge a battery if it is completely dead. Try a battery charger to get it running and see if it works properly then.

Let me know what happens.
Joe

Electrical problem
1998 Pontiac Sunfire 4 cyl Front Wheel Drive Automatic

Hello, my name is Andrew and i have a problem with my 98 sunfire. I bought a new alternator and battery and whenever i drive my battery lite comes on. Now i had autozone take both my alternator and battery out and test my battery and alternator. They both passed with flying colors. But when i had them check my alternator and battery in my car while it was running, my battery passed but my alternator was not putting out anything. I got a new alternator, checked my fuses and nothing.

Thank you for your assistance.

Based on your description, I would say you have a bad fuseable link between the alt and the battery. Thus, the alt may be good, but has no way of producing power for the battery. Have that checked and let me know what you find.

Joe