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1999 Pontiac Grand Am Battery/Alternator

Tiny
SHEDRICK20
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 156,200 MILES
Last September I bought a new alternator and just recently, my battery went bad and the car wouldn't start. I bought a new battery and put it in. The alternator is less than a year old and the battery light already came on two days after I put the new battery in. Do you think its the alternator even though its less than a year old?
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Wednesday, May 28th, 2008 AT 3:26 PM

3 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
You should check the battery voltage when the car is running. It should be around 13.8-14.5 volts
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Wednesday, May 28th, 2008 AT 3:50 PM
Tiny
SHEDRICK20
  • MEMBER
  • 2 POSTS
I just bought the battery yesterday though and have only driven it twice since then. The battery light shouldn't be coming on already. I've read a lot of posts on here about the battery light coming on, then the alternator going back. Also, people say you shouldn't buy from autozone, but thats where I got the alternator last September.
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Wednesday, May 28th, 2008 AT 4:11 PM
Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
It could of went bad. I would have it checked
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Wednesday, May 28th, 2008 AT 4:19 PM

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