I recently picked up a fairly clean 1993 240 with 187K miles. It had the classic symptoms of a bad alternator. I replaced the alternator and battery as well and the symptoms went away and the car once again charged normally. Yesterday, a little over a month later the the idiot lights started to light dimly and the battery went dead.
I did multimeter checks and found that the new alternator is only putting out 2.3 volts. My question is could there be another problem that is causing the alternator to fail? Did I get a bad alternator? Are alternators an item that are covered by warranty?
Thanks
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