Alternator not kicking out voltage to battery

1992 CHEVROLET CAPRICE
100,000 MILES • 2WD • AUTOMATIC
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QUANTAE
  • MEMBER
  • 3 POSTS
I have a new battery, and new alternator, but the battery keeps draining. I was told that the alternator is not kicking out any voltage to the battery. also, windows do not roll up or down. i am thinking I have some electrical problems some where but do not know were to start.
Dec 30, 2017 at 10:20 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning.

Can you check the voltage at the battery with the engine running?

Roy
Dec 30, 2017 at 10:35 PM
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QUANTAE
  • MEMBER
  • 3 POSTS
Yes I can, but when I am getting it checked they say the battery not charging. battery will drain after two or three days.
Dec 31, 2017 at 12:34 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Okay, can you tell me the voltage reading at the battery engine running after you charge it? Look for 14 to 14.5 volts. If you do not, check the heavy wire at the back of the alternator for battery voltage.

Roy
Dec 31, 2017 at 12:37 AM
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QUANTAE
  • MEMBER
  • 3 POSTS
When I check the voltage at the battery it has no voltage, but when I check it at the alternator it does have voltage.
Dec 31, 2017 at 12:42 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
what voltage? can you give me the readings?

Roy
Dec 31, 2017 at 12:47 AM
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