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  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #16
    The radio working, but the windows not working and failure to crank over the engine sound like either a nearly dead battery or a problem with the primary power distribution. A voltmeter check across the battery will quickly tell if it is the culprit. A fully charged battery will read 12.7v. Below 12.2v (50% charge) you may not be able to start the car.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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    • caffeinatedsoap
      Grease Monkey
      • Jun 2009
      • 360

      #17
      Originally posted by jlevie
      The radio working, but the windows not working and failure to crank over the engine sound like either a nearly dead battery or a problem with the primary power distribution. A voltmeter check across the battery will quickly tell if it is the culprit. A fully charged battery will read 12.7v. Below 12.2v (50% charge) you may not be able to start the car.
      Voltmeter shows the battery is good. How would I test the primary power distribution?
      1992 318ic

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      • jlevie
        R3V OG
        • Nov 2006
        • 13530

        #18
        Using an extension wire look for a voltage drop under load as you trace primary power leads forward. For the ground side do a resistance check back to the battery negative cable.
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

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        • Smatt90IS
          Advanced Member
          • May 2009
          • 151

          #19
          thats to funny how it can be something so small that can cause such nightmares

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          • SpecM
            R3V Elite
            • Oct 2005
            • 4531

            #20
            Originally posted by Smatt90IS
            thats to funny how it can be something so small that can cause such nightmares
            haha, yes Sam tell us about how small things can be so annoying!

            I kno, that you know what I mean
            1989 cirrisblau-metallic 325i

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