Quote:
Originally Posted by Bush Pilot
I’ve got a 97 Boxster with 50k mi. with an intermittent electrical brown out condition where the radio resets, car stumbles, lights dim etc. especially when an electrical load is put on the system. I measure 12.6V at the battery during the brown out with the car running. I measure 14.5V at the battery when not in the brown out. I can stop and restart the car and it will usually go away. I’ve replaced the alternator and starter and fuel pump relay with no success. I found rat damage to the knock sensor but who knows what else was damaged by a rat. I don’t see other damage.
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Run a voltage drop test across the primary battery cables; they are known to develop internal corrosion which leads to resistance issues, particularly when warm.
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