2000 Dodge Dakota Battery Light

2000 DODGE DAKOTA
100,000 MILES • V6 • AUTOMATIC
Avatar
SIDLEWIS
  • MEMBER
  • 1 POST
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?
Nov 12, 2015 at 9:14 AM
Advertisement
Avatar
CARADIODOC
  • ✓Experienced Mechanic
  • 34,407 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.
Nov 12, 2015 at 12:16 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle