Draining the battery

100,000 MILES • 6 CYL • FWD • AUTOMATIC
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TWOKINGS
  • MEMBER
  • 3 POSTS
My son has a Mercury Sable and something is draining his battery. He has replaced his alternator and the problem still exists. What to do now?
May 7, 2011 at 9:28 AM
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FIXITMR
  • ✓Experienced Mechanic
  • 9,989 POSTS
has he tried using test light between disconnected battery post and cable and then remove fuses till light dims/goes out? this is 1 way to find drain. could be trunk light or underhood light staying on? those are common drains.
May 7, 2011 at 10:52 AM
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FIXITMR
  • ✓Experienced Mechanic
  • 9,989 POSTS
does he have a custom stereo hookup in car? these can be problematic.
May 7, 2011 at 10:52 AM
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