Question about Mercury Mystique

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My battery light is showing on the dashboard.So I replace the battery,alternator and starter.But the battery still on.I've gone thru two new batteries.Because the battery keeps on draining until its no longer good. What can it be..........

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  • big350 Feb 18, 2009

    my 05 ford frestar has a battery drain when it sits for a week or so, had charging sys checked put in new battery, still a problem, now my 2000 f 350 is doing the same thing two new batteries charge sys checked out ok, batteries go dead after a week or so no problem if driven every day

  • Anonymous Mar 17, 2009

    I have same problem drains the batteries as fast as you put them in

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Here is a procedure to isolate a battery drain I found elsewhere and has already proved very useful several times.

Remove negative battery cable from the battery. Using a 12-volt test light, hook one end to the negative battery post the other end to the negative battery cable you just disconnected. The test light will glow or “light” if there is a drain. If the “light or glow” is faint, that is probably normal draw for the clock or computer. If the “light or glow” is bright, then there is a large drain. That should be corrected. Now start removing and replacing the fuses one by one until the light goes out; that one will be the circuit with the drain. ***Remember to hold in the button in the door jam for the interior lights.***

Posted on Jul 22, 2008

  • Tyler Jul 28, 2008

    So, I'm guessing by the rating you couldn't find the drain, or didn't try?

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