2000 Dodge Dakota Battery Light

Tiny
SIDLEWIS
  • MEMBER
  • 2000 DODGE DAKOTA
  • V6
  • AUTOMATIC
  • 100,000 MILES
Im driving at 65 and my battery gauge jumps from 14 to 18 and my check engine light comes on. I reduce to an Idle and it goes back down. What is the problem?
Thursday, November 12th, 2015 AT 5:14 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
The most likely suspect is the control wire between the alternator and the voltage regulator inside the Engine Computer is grounded. That is the dark green wire, one of the smaller two, on the back of the alternator. Grounding that wire will make the alternator charge wide open. That can damage computers and overcharge the battery.
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Thursday, November 12th, 2015 AT 8:16 PM

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