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Drains quick

Tiny
JROD210.15
  • MEMBER
  • 1996 MITSUBISHI ECLIPSE
  • 4 CYL
  • 2WD
  • AUTOMATIC
My 96 eclipse drains the battery after it starts up bout 15-20 min. Ive changed the battery n starter n alternator. Any suggestions. The person who I bought the car from ran all kinds of wires like bootleg. Could it be a stray wire touching another
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Thursday, August 11th, 2011 AT 7:51 AM

2 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
Are you saying the engine starts, then the battery drains in 20 minutes while it's running? That indicates the generator isn't recharging the battery. Use an inexpensive digital voltmeter to measure battery voltage while the engine is running. It must be between 13.75 and 14.75 volts. If it is low, suspect the generator or voltage regulator.
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Thursday, August 11th, 2011 AT 8:10 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Compare the voltage between the battery terminals and also between the alternator main post abd ground. You could have a bad link between the alternator and battery.
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Thursday, August 11th, 2011 AT 1:03 PM

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