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Battery Light on and off while driving ???

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    #1

    Battery Light on and off while driving ???

    hey guys I am new to this site and was just wondering does anybody know why my Battery Light on my instrument panel keeps going on and off...???? I just bought a new battery and was wondering if it could be the alternator that is going bad...??? I had the alternator tested and they said it was running about half the amps and volts it should be...so will that set my battery light off...??? and why does it go on and off if all the conections and terminals are good, and the belt is just fine ...??? will my 1000 w amp and 12 inch sub drain the alternator...??? thanks for your help...
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    #2
    im going to say its your alternator... if youve got a good battery and connections, thats the next logical suggestion. every other time ive heard of (and experienced) a flashing batt light, it was the alternator. did this just start? do u ever have problems with the car unable to start with a dead/weak batt?


    - 1993 Accord LX - White sedan (sold)
    - 1993 Accord EX - White sedan (wrecked)
    - 1991 Accord EX - White sedan (sold)
    - 1990 Accord EX - Grey sedan (sold)
    - 1993 Accord EX - White sedan (sold)
    - 1992 Accord EX - White coupe (sold)
    - 1993 Accord EX - Grey coupe (stolen)
    - 1993 Accord SE - Gold coupe (sold)
    Current cars:
    - 2005 Subaru Legacy GT Wagon - Daily driver
    - 2004 Chevrolet Express AWD - Camper conversion

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      #3
      i vote for the alternator too and if you don't fix it now, it will definitely strand you somewhere in a few days. is the belt routed correctly and tight and all that shit?
      ....and on the 7th day, deevergote rested and called his mom.

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        #4
        Its defineitley your alternator. But one thing i need to know is if the light comes on when you turn your speakers on or off? That will also determine the problem. You could just be pulling to many amps when your system is on and cause your light to come on since your alternator is already putting out half of what it should be.

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          #5
          I vote for the alternator too. The same thing happened to me. I thought it was some connection problem, and just kept driving. Two days later, the light came up and didn't go off again. Then my car died on the road before long.

          Comment

            #6
            Originally posted by flin1981
            I vote for the alternator too. The same thing happened to me. I thought it was some connection problem, and just kept driving. Two days later, the light came up and didn't go off again. Then my car died on the road before long.
            definately the alternator. my civic did this. off and on the light would come on... and then 2 days of solid, and boom, my battery was dead.
            ----------------------------------------------------
            Restoring a 1990 LX Coupe as my daily driver!
            Completely stock
            Yes, I race R/C Cars. (Team Stryker)
            ----------------------------------------------------

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