95 coupe EX y7 bottom z6 head

ok so all of a sudden my battery light was on when i started it the other day (car is only started once a week maybe, weekend warrior).

ok so i figure the battery has been drained a few times maybe a cell went bad or something. Got it tested and it tests fine..

OK must be the alternator. I go get a used alternator, come home put it in.. nope still low voltage. I go get my original alternator tested.. passed with flying colors..

hmmm maybe alternator wires are bad, so i replace battery ground, battery to starter, battery to fuse box and fusebox to alternator with 4 awg wire.

Nope still low voltage..

OK MUST be the ELD, i clip the wire to the ELD pin on the alternator plug.

NOPE

what else could this be? car starts at about 11.6ish volts.. will hang in the general area for a bit then slowly start to come down.. it comes down even faster when driving it.

any other ideas? i thought i did them all.

Thermostat ground is tight as is the tranny ground.

im getting so fed up

 

i have had batteries tested which passed and then still had dead isssues. got em tested again and they failed. everything you have done seems correct so have the alt and batt tested again. maybe the shop you went to had a faulty tester. or the guy didnt know how to test it right (faulty worker). and i'm sure you checked for any blown fuses just for the hell of it right> i think you have a battery fuse too in the fuse box. this is off my head so i could be wrong

 

i checked all fuses... i'll double check them again 2morro.. im fed up with it again... and it did the same thing on my friends brand new never used battery.. so maybe ill get alternator tested again

 

when all else fails change it all with brand new parts. how i like to fix things. screw trying to hunt down the problem replace it.

and there are conditions where it'll have enough voltage to pass any test but the batteries amperage is shot and theres nothing you can do about it. you may just have a crap battery in wolfs clothes so to speak. unless your saying you put your friends bat in your car. then id say new alt. or someone is sneaking out turning your lights on and turning em back off.

 

yea put the new battery in my car and it still did it.

 

check your belt! could be loose or worn.

 

its not the belt.. ive changed the alternator and made sure its tight and all that.. its something electrical

 

do you have a sound system?

 

At this point i would get a friends alternator that he's using everyday or get a brand new one (if its not it you can always return it just tell them you never installed it)

 

Do you see battery light comes on every time you turn the ignition on?? if you don't see the battery light then system not charging and alternator wouldn't charge... check the alt fuse.

 

no system... not even a radio... and battery light is always on when the car is on.

i might resort to trying the new alternator

 

Yeah, check the alternator next. Have you tried to start the car with a boost?

 

the car will start with a jump or after i charged the battery with a wall charger.. i have a feeling the alternator might be putting out a tiny charge but not enought o sustain while driving..

2morro i will try disconnecting the battery while its running to see if it dies

 

join the clan my car has the same problem now i go to work with a jump box lmao

 

theres a short in your car mines has the same issue but imma rewire up this car and wire tuck when i gets another ride -_-, i tested all my equipment and still drains my battery after about an hour or two i cannot start my car , last time i even pulled out my climate control and deck amp alarm check all door harnesses and etc now i bought a full car harness and bout to rewire this bitch since i got tired of it

 

Dont disconnect the batt while car is running, you might fry some electronic devices

 

mine doesnt drain when the cars off... its just it wont recharge.. i can leave it for days without starting it and it will start... just it will wear the battery down and eventually shut off

 

if it wont recharge means u cant drive the car anywhere, not even down the road

 

considering ive driven a car with no alternator belt on it about 5 miles to get it home, im gonna disagree with you statement about not making it down the street... maybe if you battery is 10 years old, but not on a new battery

 

when the battery light in the dash lights up, that means your alternator is out or not making enough power to charge the battery

 

did the check the alt for voltage and amps ? i had a alt with bad diode pack and it would put out 14v with no load then as soon as you turned something on it would go fer a ****. have had faulty plug also if you held it up it would charge let go nothing swap the plug and problem solved

 

i'll keep that in mind... my friend suggested checking fuse #24 in the fuse box too.. he has a honda shop trouble shooting guide that he looked it up in.. so imma check that out 2morro too