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Why would the battery run at 19?

Tiny
SHERID
  • MEMBER
  • 1994 JEEP WRANGLER
Battery runs hot at 19. A refurbished computer was installed and after about a week it did it again. He replaced with a brand new computer and alternator and battery. After a week it has done it again.
Tuesday, November 15th, 2011 AT 2:28 AM

6 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
I believe the regulator is built into the computer (PCM). Check to make sure all grounds to the computer are good. Don't run the vehicle with it doing that. You will end up burning other electrical items up and it could cause a fire.
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Tuesday, November 15th, 2011 AT 2:42 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Also blow up the battery-BTDT its overcharging the battery
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Tuesday, November 15th, 2011 AT 3:37 AM
Tiny
SHERID
  • MEMBER
  • 3 POSTS
What is btdt?
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Tuesday, November 15th, 2011 AT 4:26 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Been there done that
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Tuesday, November 15th, 2011 AT 5:22 AM
Tiny
SHERID
  • MEMBER
  • 3 POSTS
Any ideas what would cause the battery to overheat? What should be checked?
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Wednesday, November 16th, 2011 AT 7:53 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
The alternator is putting out too much power. It needs to be regulated. The regulator isn't doing its job.
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Wednesday, November 16th, 2011 AT 8:27 PM

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