battery charge problems

1999 DODGE DURANGO
114,000 MILES • V8 • 4WD • AUTOMATIC
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PAULE18JOKER
  • MEMBER
  • 1 POST
my 1999 dodge durango 5.7l v8 4x4 battery will not hold a charge i have replaced the battery twice and now i have replaced the alt. and still cant seem to find the problem. not quite sure were else i should start can you help?
Nov 13, 2010 at 6:39 PM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,367 POSTS
Start by measuring the battery voltage while the engine is running. You must find between 13.75 and 14.75 volts. If it is low, measure the voltage on the two small nuts / terminals or the two small wires plugged into the back of the alternator. There will only be voltage there when the engine is running. One must have full battery voltage and the other one must have less but not 0 volts. That second voltage will tell us where to go next.

caradiodoc
Nov 13, 2010 at 8:04 PM
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