Auto Parts and Repairs
Car Batteries
Chevy Silverado

WHAT could cause your 1990 Chevy truck not to chargeyou have changed the alternator battery and ends and all the fuses and connections?



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DID YOU MAKE SURE THAT YOU HAVE A GOOD ENGINE GROUND,TRY JUMPING A WIRE FROM BATTERY GROUND TO ALTERNATOR CASE WHILE RUNNING,SEE IF IT STARTS CHARGING,YOU SHOULD HEAR IT ENGAGE not saying that this is your problem, but don't rule out the possibility of the new alternator being bad as well. just because its new doesn't always mean that it works. i have had new parts be bad parts before. its a royal pain but if you have exhausted all other leads its simple enough to test that new alternator.