Sparkplugs Not Required
Join Date: Sep 2007
Location: El Paso, Illinois
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A couple of questions for you........
Are you having the alternators rebuilt or are you buying new ones? If rebuilt, what is actually defective, mechanical or electrical??? i.e. regulator, bearing, etc.....A good motor rebuild shop should be able to rebuild it for about $100 depending on what's wrong with it.
Are any of the aftermarket goodies that you have installed wired directly to the battery without fuses?
Have you checked the current draw on the alternator with all your accessories running?
My guess is, you have something installed electrical without a fuse that is becoming shorted, allowing excessive current draw which is frying the internals of the alternator and if it's drawing more current than supplied by the alt. it will kill batteries too.
FYI.......I know these things are insanely expensive if you have to buy new (mine was like almost $500 from Ford IIRC), but most of the internals are relatively common and a good repair shop can save you some jack. When mine went bad I couldn't find one at Autozone, NAPA, etc., so that's how I stumbled onto the motor rewind place.....
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