Quote:
Originally Posted by crazyhorse
You could unplug all the fuses, and fusible links, then put them back in one by one until the fuse blows again..
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This is standard procedure for diagnosing a difficult to locate problem like this, but any problem in any of the other circuits would really fry some stuff if it was enough to blow one of the main fusible links. I would look for a wire that is shorted to ground, like one that had the insulation rubbed off or something like that. The alternator may be whirring like that because of the draw on it. They make a different noise when you really load them down, like when testing.