please help im going crazy
unplug the mass air sensor and see if it affects your volt meter, may indicate a bad battery or open circuit
I had a similar situation the other day with a 5.3 chevy impala and after replacing the alternator the volt gauge would slowly drop as if something was drawing amperage
checked the battery and it read good but the cranking amps were draining away,
ended up being the mass air sensor, shorted out the whole ******* thing
just trying to help


and same problem could it be that all 5alternators were defective? 