Quote:
Originally Posted by crystalworks
13.0v seems pretty low to me. Would expect a 13.5 to be within "normal" operating conditions, but even that could be higher I think. Can any other I6 owners verify voltage from a new battery/alternator combo? I'm guessing the M54 in these uses the 120A or 140A alternator?
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I'm usually >13.5 with everything cranked, lights, fans, heated seats, ect. But when its really cold I notice a decrease. I don't know why but it seems pretty consistent. That's with a new 140amp and less than year old battery.