1991 Pontiac Grand Am Battery wont charge

Tiny
JUSTGREG
  • MEMBER
  • 1991 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
I have a new batt and alt and I tested all the fusible links, all the were tested and re-tested and all are good. But the battery still wont charge and the car dies when I disconnect the bat. It does not loose charge if sitting too long, Im at my wits end.
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Wednesday, September 8th, 2010 AT 2:36 PM

3 Replies

Tiny
SATURNTECH9
  • EXPERT


http://www.2carpros.com/forum/automotive_pictures/416332_1991_pontiac_grand_am_alternator_wire_diagram_1.jpg


First of all thank you so much for your donation.Taking the battery cable off to test your alternator isn't a good way to test it.Or a safe way for your computer you wouldn't want to damage it by taking the battery cable off.You will need to charge up your battery then get a test light or a multimeter.With the key in the run position check and make sure you have battery voltage to these wire's on the back of your alternator.Battery post red wire,S terminal red wire,and pink and black F terminal.Let me know what you find.
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Wednesday, September 8th, 2010 AT 2:50 PM
Tiny
JUSTGREG
  • MEMBER
The pleasure is all mine. And I will donate more if thats allowable if we can find the trouble. I've done the test you asked and yes, I have power to the alt
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Wednesday, September 8th, 2010 AT 3:03 PM
Tiny
SATURNTECH9
  • EXPERT
Yes you can donate as many time's as you would like. If you have power to all those wire's then it should be charging. Try this start the car and check all three of those wire's while it's running see if they still have power. If you do then while it's running I want you to check and see how many volt's it read's at the positive and negative battery cable's at the battery. Let me know what you find.
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Wednesday, September 8th, 2010 AT 7:20 PM

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