How do I know if I have a bad alternator?

Tiny
ANONYMOUS
  • 1984 FORD F-150
  • 199,500 MILES

How do I know if I have a bad alternator?

I ha the battery charged and the starter is working. I think it's the alternator But I unable to get the truck to a service tech to test the alternator.

Saturday, January 5th, 2013 AT 3:39 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
  • 25,554 POSTS

It needs to be running and putting out 14 to 14.5 volts at the battery

Roy

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Saturday, January 5th, 2013 AT 3:47 PM

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