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Old Oct 24, 2009 | 12:46 AM
  #1  
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Alternator light out

I'm having trouble with my 97 150, I have no BATT light showing on my dash, and my alternator is not charging either. My original 180k unit failed after i saw the batt light on and no charge, i got a junk yard one, that one seemed not to work, having the same issue, batt light on no charge, then the next one they gave me, i put it on,..no charging, and now the batt light does not show at all either??
Kind of lost here,. the alt is getting 12v at the post.

Help?
Thanks
 
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Old Oct 24, 2009 | 01:06 AM
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87 XLT
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From: SoCal
Before you do anything else, make sure the "Generator/voltage regulator" fuse isnt blown.

It's probably under the hood in the power dist. box.
 
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Old Oct 24, 2009 | 08:53 PM
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Yes, it is the alternator field excitement wire fuse

Thanks, for your correct answer! The HAYNES manual has to be disciphered first before making that clear. They suck. Thanks again, I think I know wht triggered it, as I was taking the second ALT off the power line sparked from tapping the engine
quickly. that must have done it, however, if the first ALT I got from the JY worked,...this problem also wouldn't have happened!!!! Got the part for 35 dollars,..saving 100 bucks,.minus the extra trip back in to get the second one.
 
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Old Oct 25, 2009 | 12:56 PM
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87 XLT
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From: SoCal
Yeah the wiring diagrams in a Haynes are pretty close to useless.

I bought the factory wiring diagrams/EVTM for my 87 Ranger & was so impressed with them that I also bought them for my 95 Taurus & 97 Explorer.

I like doing electrical repairs the easy way.

Thanks for the update, glad to hear you got it squared away.
 
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