I just replaced the battery and alternator in my 02 pro5.
The battery light did not go out, so I took it to AutoZone where a bat/alternator test revealed that my alternator was overcharging (it's putting out somewhere in the neighborhood of 17 volts).
This is what I am wondering:
1. Is the alternator's overcharging symptomatic of a larger system problem; ie: PCM/ ECU problems?
2. or is it possible that I just got another bad alternator.
I purchased this car yesterday and I noticed that the battery had much corrosion on the positive terminal. (the fact that the old battery was seemingly overcharged leads me to believe that the previous battery/ alternator combination had the same problems)
How would you track down a problem like this?