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First Generation Legend (1986-1990) Discuss the 1st Generation Honda/Acura Legend (US 8

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Old 05-08-07, 07:42 PM   #16 (permalink)
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Quote:
Originally Posted by MrSmith View Post
Well, I disconnected the wire harness mounted on the alternator. it was corroded. couldnt tell until I began to disconnect it. I cleaned it and re-installed it. Ive been driveing all day long stopping and going, booming and moving. from 9am until about 5pm Ive had no problems with it. Battery and alternator are in good condition it seems. From a dead battery this morning, I jump started it with another car and let the alternator do the rest (after the cleaning) hopefully thats all it was.
I strongly recommend cleaning your negative terminal/connector(s) MrSmith... from the battery, mid-point (under the battery tray), all the way to the engine block.
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Old 05-08-07, 07:45 PM   #17 (permalink)
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Yeah, corrosion can do that. You've probably found an easy solution to a difficult looking problem.

One time a buddy and I were at the library studying for physics and when we went to go to lunch his car wouldn't start. He mentioned his battery was bad and was gonna have it replaced that day. I was gonna give him a jump start, but since we were studying physics, electromagnetics in fact, i decided to put a volt meter between the battery and his terminals and told him to try to start the car. There was a large voltage drop. Now we had just finished studying his, "what causes a large voltage drop when put under load?"... RESISTANCE! where could that be coming from I asked myself.. I took out my battery brush and we cleaned his terminals. Car started right up after that and he didn't need a new battery at all. So we fixed his car without a penny spent.

the simple solutions are most likely the answer.
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Old 05-08-07, 07:50 PM   #18 (permalink)
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Quote:
Originally Posted by stephenlittleton View Post
I would agree with you but I dont know, Let me tell you whats going on with mine and why I'm here in the first place, I had the same thing and it stayed on for a couple months now and finally died 3 days ago. I have a brand new alternator from autozone cause Mine DIED, it failed on their little test thing. It was brand new out of the box. NOW, my battery is brand new. He said it kept 'yellow lighting' i guess yellow for warning, but we checked it out after it charged and it passed all the tests. I slapped it in last night and my battery light is STILL on... what else could it be??? Bad cables? Improper voltage going through? not enough? what else could it be?! Also, my ALT SENSE fuse keeps blowing. I put a 30 and even higher i think fuses on there and THEY BLOW TOO!!!! wtf?!?! Should I slip a tin foil gum wrapper in there and just connect the two? Or would that blow my baby up?
STEPHEN... DUDE, DO NOT DO THAT!

Fuses are meant to protect your car electronics from over-heating, fire, and personal injury. Ever seen a car on the side of the road engulfed in flames?? I have twice... I always wondered if the people were able to get out first.

Put only fuses with the correct rating in your fuse box. If they blow, there is an electrical problem somewhere that needs to be addressed.

Several of our members have had fires start in their car while driving; you don't wanna be the next one..
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Old 05-09-07, 08:57 PM   #19 (permalink)
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Stephenlittleton:

OMG. Whatever you do don't use a bigger fuse or wrap it with foil. The alternator sense wire senses bus voltage and feeds the regulator. This voltage signal provides feedback to the regulator. This is the signal wire that the regulator uses to regulate charge rate. If you continually blow the sense wire fuse you have a short circuit. A wire is grounded somewhere.

The manual has a very logical test sequense. Is the fuse you are referring to the #22 fuse under the dash? In further review of the shop manual I would have to say it has the best service section on the charging system I have seen.

It is also a good idea to clean up any corrosion associated with wiring. You may get away with it for now but it will surely crap-out on the coldest, nastiest, hottest, worst day of the year. This also usually occurs when you are in rush hour traffic driving your dog to the vet with a severe flea infestation.

If you end up pulling the alternator I would encourage you to change out the brushes and bearings.

I detest electrical failures. If you lived closer I would gladly help you do the repair. To top it off I have a hoist.

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Old 05-09-07, 09:39 PM   #20 (permalink)
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Originally Posted by pnoye2 View Post
I strongly recommend cleaning your negative terminal/connector(s) MrSmith... from the battery, mid-point (under the battery tray), all the way to the engine block.

How do I do that? I keep the battery term clean. But to the fire wall. how do I get under all that gift wrapped tape to make sure theres no corrosion?

Or did you mean just the connectors. (silly me) I feel dumb. well probably even dummer, Im still typing. anywho. i disconnect the battery so often that it doesnt have a chance to corrode.
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Old 05-10-07, 01:58 AM   #21 (permalink)
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Just them connectors MrSmith ...and if I'm not mistaken, there is a DIY for this particular topic, I beleive it's KAHruzer that did it!
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Old 05-12-07, 07:37 AM   #22 (permalink)
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Okay okay, I thought it would be kinda comical... But theres nothing funny about fires (especially if its my only mode of transportation) I was just curious as to why this would happen. Its NOT me, because i remember the car coming like that. The alt sense fuse missing and would blow when I hooked it in. I bet its from some kind of rigging the guy did who had it before me. But the messed up part is this. Its always been missing that fuse, after it was sitting for a couple years, it ran fine with electrics, only recently did the battery light come on and stay on, (it would go off when it first started coming on.) and only after 4 - 5 weeks of battery light staying on did it finally cut out on me. Just weird.... I am so into cars, (well i wanna be) but I know nothing about them. I am a computer guy, any computer problems, I can fix but cars... man, what fun it is to be new! Thanks for ur help fellarz
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Old 05-12-07, 07:36 PM   #23 (permalink)
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I'll keep u in mind when my computer has problems... any tips to improve P to P download speeds?
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Old 07-05-07, 06:40 PM   #24 (permalink)
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I've also had the same battery light problem since getting a new alternator
its nice to know other people have a similar problem and that its not some short in a hard to reach place.
ive been having the battery light problem for more than half a year now and am about to give it the black tape treatment



unblock ports it could be using to download LEGAL software faster lol
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Old 07-05-07, 11:20 PM   #25 (permalink)
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Well Ive had the battery light on for almost a year now and my alt. hasnt died yet, But just in case I got a spare in the trunk. Now this is weird it cuts on and off sometimes and some times it doesnt light up at all, but eventually it does, idk what the hecks wrong with it, So urs might just be something else besides the alt. like mine...
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Old 07-06-07, 02:35 AM   #26 (permalink)
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wow young you just described exactly what mine is doing,

if you ever figure it out you call me right up lol
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Old 07-06-07, 04:11 PM   #27 (permalink)
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well reading this thread explains why the brake light in my van was on ):

my alternator died in the middle of a big intersection, right at a stop light ..couldn't move the van! We were going to push it out of the way so people could at least get by ..but the it started raining and hailing. ):

it turned out to be a bad alternator. ): that sucked.
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Old 07-06-07, 04:49 PM   #28 (permalink)
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Quote:
Originally Posted by Young A.D. View Post
Well Ive had the battery light on for almost a year now and my alt. hasnt died yet, But just in case I got a spare in the trunk. Now this is weird it cuts on and off sometimes and some times it doesnt light up at all, but eventually it does, idk what the hecks wrong with it, So urs might just be something else besides the alt. like mine...
What voltage does your alternator put out?

A funny thing happened to the G-friends Honda. There was a slow drain for a long time, recently the drain got worse - 5 Amps. I pulled every fuse trying to find the circut with the short (drain). So I asked her to unhook the neg terminal when she parked for long periods of time).

So the next day the red light came on. I was worried that the car would die on her so told her to get home ASAP so I can check it out. The Alternator was now putting out 18 volts. It caused the red light to come on but the car did not die. So my short was between the alternator ant the battery (through the built in voltage regulator which had failed and caused the short most likely through a bad diode). That is not fused by any fuse in the fuse boxes thats why I couldnt find it.

So the red light can also mean an overvoltage....
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