ive done some searching but havent really found much. got a 00 blazer 4.3. the volt meter reads at 9 at some days and other days it will read 14. i do got a system in it and even if i dont have it on it still reads 9. got the amps hooked up to a toggle switch so its not on all the time. ive done the batt pos to alt upgrade as well as batt neg to alt. still no change. ill try the neg to a ground tomorrow and see if that helps. could i have a bad battery alt or gauge?

 

It would not hurt to get your batt and alt tested at an auto parts store, most test for free. but I would first start with your ground to the battery, give it a good clean ground, and then go from there.

 

yea im gonna run one to the tow hook bolt tomorrow

 

run the new ground to the tow hook and now the voltage is stayin pretty much at 14. drove it for over an hr now its gonna be sittin while im out of town so ill see if it will start when i get back sunday