I had a new alternator placed in my 2001 Mazda MPV about 2 months ago. A month later the alternator failed and I had it replaced again, it was still showing signs of failing and I was told by the mechanic that it was the PCM. I took it to the dealer and was told it was not the PCM just the alternator. So the alternator was replaced again, different manufacturer this time. Now here I am a month later and the alternator is failing again. The dealer checked the PCM and wires and everything seems to be working fine except the alternator. They don't seem too enthusiastic about looking beyond the alternator issue.
I think the problem is deeper than the alternator, what is the chance that 3 brand new alternators don't work properly? I can get the alternator replaced under warranty but then I need to find out the real issue. Any help would be appreciated.