2002 Chevy Silverado Batery not charging

Tiny
VASVAJ
  • MEMBER
  • 2002 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
My 02 chevy silverado is not charging the batery. My batery would slowly drain out while driving. I've replaced the batery with a new one, but still draining. I also have the alternator tested by autozone trice and it passes the test, but it still draining the batery. Sometime it would charge up if I run up the engine once or twice by stepping on the gas hard. Any subjestion on what's wrong?
Sunday, January 13th, 2008 AT 10:13 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
If the alternator tests ok check for a slipping serpentine belt, and bad batter cables, or connections, especially the neg cable to block!
Check the pulley nut, make sure it's tight!
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Sunday, January 13th, 2008 AT 10:17 AM

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