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1994 Jeep Wrangler Battery drains

Tiny
PLATOS2
  • MEMBER
  • 1994 JEEP WRANGLER
  • 6 CYL
  • 4WD
  • MANUAL
  • 12,000 MILES
When I start my Jeep it's a real slow turnover, like the battery is dying, once it's started though the alternator juices it up. If I leave it sitting for more than 3 days, I have to jump it. The battery is pretty new, so I'm not sure what is draining my power.
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Monday, May 19th, 2008 AT 12:27 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Get an analog voltmeter remove the negative battery cable, attach the Black lead to the battery post, Red lead to cable end, then pull fuses one at a time, make sure there are no accessories or lights in the on position, Key off! Close the door after each fuse and check meter, when you pull the fuse for the bad curcuit, the meter will drop to 1 volt or so. Check all fuses, even under the hood. If meter does not drop, remove the battery connection from the alternator, if it drops now, the diodes are bad in the alternator. Put the fuse back in were it goes as you go so you don't forget which fuse goes were!
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Monday, May 19th, 2008 AT 1:35 PM

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