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89 Accord Batt Light (Please Help!)
Ok, I am here seeking technical help in diagnosing a specific problem
with the charging system in my car. I have an 89 Honda Accord DX, carbureted. My battery light has been coming on intermittently. This weekend, I installed a new battery, a new alternator and a new fuel pump. This morning I was driving to work. At one point, the light flashed on and off with the blinker light. Eventually it stayed on. If I turned off all the accessories, then it would go out, until I got closer to work, then it stayed on. I noticed all my lights were dimming, like the battery was being drained. After I arrived to my parking spot, I shut it off, and tried to restart it. It would not start, barely cranking over... So, my if battery is new and the alternator is new, why would my battery be dead after a short (20 minute) drive to work? Is there something I am missing here? |
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#2
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89 Accord Batt Light (Please Help!)
madman1991 wrote: > Ok, I am here seeking technical help in diagnosing a specific problem > with the charging system in my car. > > I have an 89 Honda Accord DX, carbureted. > > My battery light has been coming on intermittently. This weekend, I > installed a new battery, a new alternator and a new fuel pump. This > morning I was driving to work. At one point, the light flashed on and > off with the blinker light. Eventually it stayed on. If I turned off > all the accessories, then it would go out, until I got closer to work, > then it stayed on. I noticed all my lights were dimming, like the > battery was being drained. After I arrived to my parking spot, I shut > it off, and tried to restart it. It would not start, barely cranking > over... > > So, my if battery is new and the alternator is new, why would my > battery be dead after a short (20 minute) drive to work? Is there > something I am missing here? Sounds like a wiring short of some kind. Either that or one of the devices on that chain is shorting/grounding out. Being the blinker was involved a bit, it could even be in the wiring in the steering column, or thereabouts. I'd do all the tests I listed in an earlier post, and if still no good, you will have to do current draw tests to see where the drain is. Something is shorting together, or grounding out. That draws a lot of current and will knock a battery down fast. MK |
#3
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89 Accord Batt Light (Please Help!)
where did you get the replacement alternator? Certain vendors have issues
with bad diodes and faulty brush installations. Sometimes your 'new' alternator is simply bench tested with only the apparent bad parts being replaced. Is the belt tightened to specification? Did you install a new belt? This failure could be caused by a silent slip of the belt. t madman1991 wrote: >Ok, I am here seeking technical help in diagnosing a specific problem >with the charging system in my car. > >I have an 89 Honda Accord DX, carbureted. > >My battery light has been coming on intermittently. This weekend, I >installed a new battery, a new alternator and a new fuel pump. This >morning I was driving to work. At one point, the light flashed on and >off with the blinker light. Eventually it stayed on. If I turned off >all the accessories, then it would go out, until I got closer to work, >then it stayed on. I noticed all my lights were dimming, like the >battery was being drained. After I arrived to my parking spot, I shut >it off, and tried to restart it. It would not start, barely cranking >over... > >So, my if battery is new and the alternator is new, why would my >battery be dead after a short (20 minute) drive to work? Is there >something I am missing here? -- Message posted via CarKB.com http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1 |
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89 Accord Batt Light (Please Help!)
I got the replacement alternator at Autozone. I certainly hope they
don't sell bad parts. I have never had a problem with them before. The belt is indeed tight, I did not install a new belt. I am thinking I have a shorted out component somewhere. loewent via CarKB.com wrote: > where did you get the replacement alternator? Certain vendors have issues > with bad diodes and faulty brush installations. Sometimes your 'new' > alternator is simply bench tested with only the apparent bad parts being > replaced. > > Is the belt tightened to specification? Did you install a new belt? This > failure could be caused by a silent slip of the belt. > > t > > madman1991 wrote: > >Ok, I am here seeking technical help in diagnosing a specific problem > >with the charging system in my car. > > > >I have an 89 Honda Accord DX, carbureted. > > > >My battery light has been coming on intermittently. This weekend, I > >installed a new battery, a new alternator and a new fuel pump. This > >morning I was driving to work. At one point, the light flashed on and > >off with the blinker light. Eventually it stayed on. If I turned off > >all the accessories, then it would go out, until I got closer to work, > >then it stayed on. I noticed all my lights were dimming, like the > >battery was being drained. After I arrived to my parking spot, I shut > >it off, and tried to restart it. It would not start, barely cranking > >over... > > > >So, my if battery is new and the alternator is new, why would my > >battery be dead after a short (20 minute) drive to work? Is there > >something I am missing here? > > -- > Message posted via CarKB.com > http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1 |
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89 Accord Batt Light (Please Help!)
"madman1991" > wrote in message
ups.com... > Ok, I am here seeking technical help in diagnosing a specific problem > with the charging system in my car. > > I have an 89 Honda Accord DX, carbureted. > > My battery light has been coming on intermittently. This weekend, I > installed a new battery, a new alternator and a new fuel pump. This > morning I was driving to work. At one point, the light flashed on and > off with the blinker light. Eventually it stayed on. If I turned off > all the accessories, then it would go out, until I got closer to work, > then it stayed on. I noticed all my lights were dimming, like the > battery was being drained. After I arrived to my parking spot, I shut > it off, and tried to restart it. It would not start, barely cranking > over... > > So, my if battery is new and the alternator is new, why would my > battery be dead after a short (20 minute) drive to work? Is there > something I am missing here? The first thing I would check is all connections, especially the often neglected ground strap. Next I would suspect a possibly faulty alternator (they are sometimes bad right out of the box). Could be a intermittent or lower amperage draw/short elsewhere in the wiring as well. |
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89 Accord Batt Light (Please Help!)
what is the voltage across the battery terminals at idle?
madman1991 wrote: >I got the replacement alternator at Autozone. I certainly hope they >don't sell bad parts. I have never had a problem with them before. > >The belt is indeed tight, I did not install a new belt. I am thinking >I have a shorted out component somewhere. > >> where did you get the replacement alternator? Certain vendors have issues >> with bad diodes and faulty brush installations. Sometimes your 'new' >[quoted text clipped - 28 lines] >> Message posted via CarKB.com >> http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1 -- Message posted via CarKB.com http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1 |
#8
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89 Accord Batt Light (Please Help!)
madman1991 wrote:
> Ok, I am here seeking technical help in diagnosing a specific problem > with the charging system in my car. > > I have an 89 Honda Accord DX, carbureted. > > My battery light has been coming on intermittently. This weekend, I > installed a new battery, a new alternator and a new fuel pump. This > morning I was driving to work. At one point, the light flashed on and > off with the blinker light. Eventually it stayed on. If I turned off > all the accessories, then it would go out, until I got closer to work, > then it stayed on. I noticed all my lights were dimming, like the > battery was being drained. After I arrived to my parking spot, I shut > it off, and tried to restart it. It would not start, barely cranking > over... > > So, my if battery is new and the alternator is new, why would my > battery be dead after a short (20 minute) drive to work? Is there > something I am missing here? Check out this link for steps for testing your electrical system. Most can be done with any simple digital multimeter. http://assets.fluke.com/appnotes/aut...e/beatbook.pdf |
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