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Alternator / Battery

Tiny
BJSHAW
  • MEMBER
  • 2005 DODGE MAGNUM
  • 3.8L
  • 6 CYL
  • RWD
  • AUTOMATIC
  • 72,000 MILES
My Magnum must be jumped in order to start it and once it is started it will run however once I turn it off that's all she wrote. I turn the key into the off position and immediately try to start my Magnum but nothing happens, it does not make a sound at all.
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Tuesday, April 5th, 2016 AT 4:11 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
Start by testing the battery. Measure its voltage with an inexpensive digital voltmeter. It must be 12.6 volts. If it's close to 12.2 volts, it's good but discharged. If it's around 11 volts or less, it has a shorted cell and must be replaced.
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Tuesday, April 5th, 2016 AT 7:08 PM

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