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  #1 (permalink)  
Old 07 Feb 2007, 04:08 pm
lswpubrw
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Default Battery-alternator problem.

It's been really cold here (~10 F) over night and my car has developed
a strange problem. It's a 1991 Accord EX StatWag. The battery is 37
months old. It's my wife's car so I only discovered the problem when
I used it the other day. The car started fine but the battery light
stayed on and eventually the car almost didn't start after one stop.
When I got home I measured the battery voltage and it was about 12 V.
I charged the battery and things started fine and light did NOT come
on even as I drove it on a short trip. I measured the voltage at the
battery with the engine running and it's 14.6V. Next morning a
problem again with the charge light. The battery drops down to 12.5V
overnight after being charged. When the car is running the voltage at
the battery is only 12.1V under this low voltage condition. If the
car runs long enough the charge light sometimes goes out and the
voltage from the alternator goes up to 14.6V. So my question is can a
low (going bad) battery make alternator voltage drop, and the charging
light stay on?

Thanks,
Bob

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  #2 (permalink)  
Old 07 Feb 2007, 04:23 pm
Elle
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Default Re: Battery-alternator problem.

Try the five checks listed at
http://home.earthlink.net/~honda.lioness/id13.html

Has the battery been allowed to go dead in the last 37
months? If so, what means did you use to re-charge it? Is
the alternator the original one? If not, how old is the
current one?

What is the make of the battery?

"lswpubrw" <lswpubrw@optonline.net> wrote

> It's been really cold here (~10 F) over night and my car
> has developed
> a strange problem. It's a 1991 Accord EX StatWag. The
> battery is 37
> months old. It's my wife's car so I only discovered the
> problem when
> I used it the other day. The car started fine but the
> battery light
> stayed on and eventually the car almost didn't start after
> one stop.
> When I got home I measured the battery voltage and it was
> about 12 V.
> I charged the battery and things started fine and light
> did NOT come
> on even as I drove it on a short trip. I measured the
> voltage at the
> battery with the engine running and it's 14.6V. Next
> morning a
> problem again with the charge light. The battery drops
> down to 12.5V
> overnight after being charged. When the car is running
> the voltage at
> the battery is only 12.1V under this low voltage
> condition. If the
> car runs long enough the charge light sometimes goes out
> and the
> voltage from the alternator goes up to 14.6V. So my
> question is can a
> low (going bad) battery make alternator voltage drop, and
> the charging
> light stay on?
>
> Thanks,
> Bob
>



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  #3 (permalink)  
Old 07 Feb 2007, 05:26 pm
jim beam
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Posts: n/a
Default Re: Battery-alternator problem.

lswpubrw wrote:
> It's been really cold here (~10 F) over night and my car has developed
> a strange problem. It's a 1991 Accord EX StatWag. The battery is 37
> months old. It's my wife's car so I only discovered the problem when
> I used it the other day. The car started fine but the battery light
> stayed on and eventually the car almost didn't start after one stop.
> When I got home I measured the battery voltage and it was about 12 V.
> I charged the battery and things started fine and light did NOT come
> on even as I drove it on a short trip. I measured the voltage at the
> battery with the engine running and it's 14.6V. Next morning a
> problem again with the charge light. The battery drops down to 12.5V
> overnight after being charged. When the car is running the voltage at
> the battery is only 12.1V under this low voltage condition. If the
> car runs long enough the charge light sometimes goes out and the
> voltage from the alternator goes up to 14.6V. So my question is can a
> low (going bad) battery make alternator voltage drop, and the charging
> light stay on?
>
> Thanks,
> Bob
>

potentially, but check the belt for slippage and the alternator brushes
for wear first.
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  #4 (permalink)  
Old 07 Feb 2007, 06:07 pm
lswpubrw
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Default Re: Battery-alternator problem.

On Feb 7, 4:23 pm, "Elle" <honda.lion...@nospam.earthlink.net> wrote:
> Try the five checks listed athttp://home.earthlink.net/~honda.lioness/id13.html
>
> Has the battery been allowed to go dead in the last 37
> months? If so, what means did you use to re-charge it? Is
> the alternator the original one? If not, how old is the
> current one?
>
> What is the make of the battery?
>


No, Don't know I've only owned the car for 3 years. Kirkland
(Costco).

bob

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  #5 (permalink)  
Old 07 Feb 2007, 06:09 pm
lswpubrw
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Default Re: Battery-alternator problem.

On Feb 7, 5:26 pm, jim beam <spamvor...@bad.example.net> wrote:
> lswpubrw wrote:
> > It's been really cold here (~10 F) over night and my car has developed
> > a strange problem. It's a 1991 Accord EX StatWag. The battery is 37

> potentially, but check the belt for slippage and the alternator brushes
> for wear first.- Hide quoted text -


Belt feels tight, little give when I press down. The brush assembly
be removed without removing the alternator? I'm trying to avoid
taking the power steering pump off.

Bob

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  #6 (permalink)  
Old 07 Feb 2007, 06:56 pm
Jim Yanik
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Default Re: Battery-alternator problem.

"lswpubrw" <lswpubrw@optonline.net> wrote in
news:1170889634.820448.318150@v45g2000cwv.googlegr oups.com:

> On Feb 7, 4:23 pm, "Elle" <honda.lion...@nospam.earthlink.net> wrote:
>> Try the five checks listed
>> athttp://home.earthlink.net/~honda.lioness/id13.html
>>
>> Has the battery been allowed to go dead in the last 37
>> months? If so, what means did you use to re-charge it? Is
>> the alternator the original one? If not, how old is the
>> current one?
>>
>> What is the make of the battery?
>>

>
> No, Don't know I've only owned the car for 3 years. Kirkland
> (Costco).
>
> bob
>


batteries can go bad early:I had one die after one year,it was replaced
under warranty(PepBoy battery.)

Cold weather can accellerate that death.

Get a load test on the battery.

--
Jim Yanik
jyanik
at
kua.net
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  #7 (permalink)  
Old 07 Feb 2007, 08:20 pm
Tegger
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Default Re: Battery-alternator problem.

"lswpubrw" <lswpubrw@optonline.net> wrote in news:1170882481.289162.189470
@a34g2000cwb.googlegroups.com:

> It's been really cold here (~10 F) over night and my car has developed
> a strange problem. It's a 1991 Accord EX StatWag. The battery is 37
> months old. It's my wife's car so I only discovered the problem when
> I used it the other day. The car started fine but the battery light
> stayed on and eventually the car almost didn't start after one stop.
> When I got home I measured the battery voltage and it was about 12 V.
> I charged the battery and things started fine and light did NOT come
> on even as I drove it on a short trip. I measured the voltage at the
> battery with the engine running and it's 14.6V. Next morning a
> problem again with the charge light. The battery drops down to 12.5V
> overnight after being charged. When the car is running the voltage at
> the battery is only 12.1V under this low voltage condition. If the
> car runs long enough the charge light sometimes goes out and the
> voltage from the alternator goes up to 14.6V. So my question is can a
> low (going bad) battery make alternator voltage drop, and the charging
> light stay on?
>



Your alternator is faulty! During the low-voltage episodes, the alternator
is not charging. You need to replace either the brushes or the entire
alternator.

You can buy a new brush holder from the dealer for about $20.

Do yourself a favor if you replace the entire alternator. Go spend the
extra hundred or so dollars and get a Honda reman from the dealer. The
headaches and problems you'll save will be priceless.


--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
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  #8 (permalink)  
Old 07 Feb 2007, 08:27 pm
Tegger
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Posts: n/a
Default Re: Battery-alternator problem.

"lswpubrw" <lswpubrw@optonline.net> wrote in news:1170889741.527531.88730@h3g2000cwc.googlegrou ps.com:

> On Feb 7, 5:26 pm, jim beam <spamvor...@bad.example.net> wrote:
>> lswpubrw wrote:
>> > It's been really cold here (~10 F) over night and my car has developed
>> > a strange problem. It's a 1991 Accord EX StatWag. The battery is 37

>> potentially, but check the belt for slippage and the alternator brushes
>> for wear first.- Hide quoted text -

>
> Belt feels tight, little give when I press down.




3/8" deflection at the middle of the longest run with 20 lbs pressure
is proper tension. But this is not your problem here.



> The brush assembly
> be removed without removing the alternator? I'm trying to avoid
> taking the power steering pump off.
>



The brush assembly can be removed with the alternator in-situ, but you need
a NEW, WELL-FITTING Phillips screwdriver to remove the two holder screws.

My experience from 2002:
<http://groups.google.com/group/rec.autos.makers.honda/browse_frm/thread/611d2083a2bb174c/f963e0cb2ba9d689?lnk=st&q=&rnum=1#f963e0cb2ba9d689 >


--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
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  #9 (permalink)  
Old 07 Feb 2007, 08:41 pm
lswpubrw
Guest
 
Posts: n/a
Default Re: Battery-alternator problem.

On Feb 7, 6:56 pm, Jim Yanik <jya...@abuse.gov> wrote:
> "lswpubrw" <lswpu...@optonline.net> wrote innews:1170889634.820448.318150@v45g2000cwv.google groups.com:
>
> Get a load test on the battery.
>


I measured the voltage while my wife hit the starter. Battery voltage
dropped to 10V but it started without much trouble.

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  #10 (permalink)  
Old 08 Feb 2007, 01:12 am
loewent via CarKB.com
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Posts: n/a
Default Re: Battery-alternator problem.

Cold, eh?

Try -25 F on for size, them complain about the cold. And my wife busted the
plug off of the block heater cord... It still starts, but boy she sure don't
wanna!

Terry in WINTERPEG

lswpubrw wrote:
>It's been really cold here (~10 F) over night and my car has developed
>a strange problem. It's a 1991 Accord EX StatWag. The battery is 37
>months old. It's my wife's car so I only discovered the problem when
>I used it the other day. The car started fine but the battery light
>stayed on and eventually the car almost didn't start after one stop.
>When I got home I measured the battery voltage and it was about 12 V.
>I charged the battery and things started fine and light did NOT come
>on even as I drove it on a short trip. I measured the voltage at the
>battery with the engine running and it's 14.6V. Next morning a
>problem again with the charge light. The battery drops down to 12.5V
>overnight after being charged. When the car is running the voltage at
>the battery is only 12.1V under this low voltage condition. If the
>car runs long enough the charge light sometimes goes out and the
>voltage from the alternator goes up to 14.6V. So my question is can a
>low (going bad) battery make alternator voltage drop, and the charging
>light stay on?
>
>Thanks,
>Bob


--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx...-cars/200702/1

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