my battery light is on i changed the battery yesterday checked all fuses, took the alternator off and got it tested at AutoZone and it passed. whats next?? help please

edit: when im idle the batt light is on and when i press the gas it goes away, also the lights get barely dimmed when i hit a turning signal


Modified by dczchatch at 1:36 PM 2/20/2008

 

check fuse #31 in main fuse box under the hood - #31 is at top at end of fuse box closest to front of car - 60 amp fuse

have you checked the voltage at the battery with engine running?

 

yes the fuse is good, no i havent check the voltage at the battery should i go to kregan/autozone to get it tested

 

Battery light has nothing to do with the battery being bad. Wish people would understand this is something with the charging system. I would bet your alternator is going south. Check all your connection to the alt and check the everything with volt meter.

 

the guy at kregan told me i needed another battery so he say, and when you say check all connections for the alternator, do you mean just the two on the alt? and i dont have a volt meter


Modified by dczchatch at 2:40 PM 2/20/2008

 

oh man ive been here! i went through 3 advance alts and they "tested good" but they werent. its prob just your alternator. go to napa or somewhere u can trust and buy a brand new alternator. i have a brand new Denso. its a bit more but worth it. if u search on here u will find the post about my charging system troubles. GL this problem drove me crazy! almost sold the hatch over it! D@MN local part stores!

 

ok sounds like my best bet is get my old battery back because its only 2 years old return the new battery and buy a new alt and pray to the honda gods or something hoping it works lol, ok thanks ill let you guys know whats up gotta go take it off again

 

GL gettin ur old batt back. i would just keep it and get a new alt also. just go ahead and take care of both possible issues at once. GL

 

you might want to check your ground wires too, motor to chasis and chasis to batt.

 

^^ isnt it batt to frame and splits to trans? and then from ur valve cover to frame/rad support?

 

CHECK YOUR ALT GROUND.OR YOUR ALT IS BAD.

 

and where does the alt ground off to

 

? i was wondering the same thing?

 

yep it was my alt smh , im not even gonna bother getting my atl's tested anymore whats the efing point, it passed but it was bad , anyways thanks honda-techers i love you guys

 

glad to hear u solved ur prob. its def a waste to get it tested atleast that seems to be the reacuring thing.

 

I had a brand new one fail on me right out of the box. Now I make them test every new one I buy before I walk out the store with it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRX Toad &raquo;</TD></TR><TR><TD CLASS="quote">I had a brand new one fail on me right out of the box. Now I make them test every new one I buy before I walk out the store with it. </TD></TR></TABLE>

where do u get ur new ones Toad?

 

The problem with the tester at autozone is that it doesn't test a range of speeds. if a few coils are broken in the alternator, it may test great at driving rpm, i.e. 3k-4k rpm, but at 800-900rpm idle speed the alt. doesn't generate enough power.

 

word i have been looking for a post on this for a while. my charging system light is just barely on, always. not completely on and i can only see it at night. i did check the alternator with a voltmeter so i am going to check out the fuse as well. if that does not solve my problem, should i next test my grounds?

 

Get a voltmeter, and connect it to the battery. Check to voltage with the car off, and then again while the car is running and get back to us with these numbers. That is where you start on this problem.

 

99% sure its your alternator. If it was your grounds the car would not start and the battery light would not come on.

The alternator is grounded through its case. Therefore the engine/trans ground is the alternator ground(the starter is the same way which is why I highly doubt its the ground).

If you do test voltage of the battery with the car running make sure your setting is on dc volts. Also your voltage should be 13.5-15v with a properly charging alternator.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by almaxximo &raquo;</TD></TR><TR><TD CLASS="quote">CHECK YOUR ALT GROUND.OR YOUR ALT IS BAD.</TD></TR></TABLE>

i knew something was wrong with this....

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sgallagher &raquo;</TD></TR><TR><TD CLASS="quote">
The alternator is grounded through its case. Therefore the engine/trans ground is the alternator ground(the starter is the same way which is why I highly doubt its the ground).</TD></TR></TABLE>

and this makes more since. so there is no need to check the ground on the alt. some ppl told me to do this and i was pretty sure there wasnt a ground coming off the alt.

 

yeah thanks guys but i just blew my motor today so im taking back the alt and life goes on

 

bummer...

 

damn i would cry. my car is stock, but i love it. when my motor dies i will figure something out.

Back to the alternator. I have this weekend to myself for the most part so I might try and see what I get. This has been going on since I got the car in June, and I have not had any problems with the car other than me leaving the damn lights on. I will get back to ya'll and let you know. Thanks for the advice