what could it be

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civiclxb16

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ok i am having one last problem and it is getting on my last nerve. ok finally got my civic running and now it is not holding the charge to my battery, i took the battery to sears and they checked it out and they said it is ok to use, took the alt to the local shop and they put it on there machine and it was reading 13.9 is that normal? and is that good enough to run the car because when i put the volt meter on the battery it was saying 12.65 when it should be at 14 right? could it be my wiring harness is just shot(at the shop they chopped it up pretty badly) should i get a new harness and call it aday? let me know i want to be driving my civic no later then may 15th please help me out!!
 
i sell batteries and 12.5v+ is ok when a fully charged car/moto bat leaves here its like 13v+ and ur alt pushes it to 14v like you said. but only when the car is running. does the bat not start the car? what all is wrong with it? did they do a load test or just check with a v meter? if its just cuz you checked it and it said 12.65v and it starts i wouldnt worry bout it
 
Originally posted by PhyRe@Apr 22 2005, 05:19 PM
i sell batteries and 12.5v+ is ok when a fully charged car/moto bat leaves here its like 13v+ and ur alt pushes it to 14v like you said. but only when the car is running. does the bat not start the car? what all is wrong with it? did they do a load test or just check with a v meter? if its just cuz you checked it and it said 12.65v and it starts i wouldnt worry bout it
[post=490267]Quoted post[/post]​

the problem is my car doesn't stay on it dies after a while so i put the battery back on the charger over night and i go thur it all over again the next day, it only last say a half hour or so then it starts to die off that is why i was wondering what it could be
 
You could always run a larger wire from the alternator to the fusebox, and bypass the whole wiring harness.


someone pmed me this is this a good idea ?
 
is your battery holding a charge?

Try it in the prelude, maybe you got a crappy battery.

I just bought a new battery and it was garbage (free replacement) but I upgraded it to 530 cranking amps instead of 425 or whatever it was for 13.87.
 
Are your grounds all crappy? terminals clean?

Just a thought because mine aer shit and im going to be re-doing them.
 
for your alt to charge your battery it needs to be at least at 13.8v. if you turn on your lights and voltage drops below 13.8 at that point you stopped charging the batt and began drainning it. this does not mean that your alt is bad you may just have crappy wires. So with your batt sitting atleast at 12.4v start your car check voltage at your battery you should have atleast 13.8v then check voltage at the back of the alt it should match what you got at your batt. A .2v voltage drop is acceptable but I wouldn't like it if that was my car. if the voltage doesn't match and you have more than 13.8v at the back of the alt then it is your wireing. if you have less than 13.8v it is your alt. now if voltage matches and it is above 13.8v it is your batt.

let us know what happens.
M

ninja time :ph34r:
 
you're alternator should be putting out 14.2 - 14.8 volts at idle. if it's not, check your grounds, make sure you don't have any corroded wires anywhere. if your car dies after any amount of time, and your battery is dead once it dies, that tells you that your alternator isn't charging the battery like it's supposed to be and it's not putting out enough amperage to supply the engine.
 
that tells you that your alternator isn't charging the battery like it's supposed to be and it's not putting out enough amperage to supply the engine.

sounds about right to me
 
Originally posted by civiclxb16@Apr 26 2005, 08:53 PM
all fixed it was the wiring harness thanks guys
[post=491788]Quoted post[/post]​



about time..lol....Im glad you got it running man..g...
:woo:
 
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