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Originally Posted by Chris1222
I noticed the same power pulses while driving at night, and I have read on other forums that we're not the only ones. Have you spoke to the dealer about this problem?
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I took it to the dealer last week and at first they said they could not duplicate the problem and there were no codes. When I expressed my severe disatisfaction and told them (as I had when I dropped it off) to check the TSB on the problem, they called back and said they were special ordering me a new alternator. I don't know exactly what the TSB says, as I only heard that there was a TSB for this problem. I just received a call yesterday that the part arrived, so I won't know until next Friday when they install it if it fixes the problem (which I have no doubt that it will). I doubt I'll ever get to actually speak to anyone but the service writer about exactly what caused the problem (who in this case was a 20 year girl with little mechanical knowledge) as I buy my cars from a huge mega-dealer. That said, I had read on some board the opinion that the alternator is too small. I doubt that is actually the case, however. It seems to me that the problem is simply a bad batch of voltage regulators that intermittently flicker the charging power on-and-off, but rarely allow the battery voltage to drop or rise beyond the parameters which would trigger a low or high battery voltage code.