Alternator not charging??

I have a '97 GT3000 which appeared as if the alternator wasn't charging the battery. I had the alternator rebuilt and the voltmeter still read anywhere form 10-4v!. I replaced the alternator to get the same results to my dismay, low voltage reading. I checked battery negative and positive wiring, all seems well, tight no loose connections.

Recently the battery died (the voltage meter was reading 0 with the car running) so a borrowed a battery to get a jump. After the car started with my friend's battery it shutdown when the battery was I disconnected from the terminals. This happened again on subsequent attempts. I had to borrow the battery to get the car home!

During troubleshooting the CHECK ENGINE light came on but after disconnecting the battery. Diagnostic check revealed no error codes.

I know typically the shutdown of the engine when the battery is disconnected is indicative of alternator problems, but 2 alternators? Just thinking outside the box could this be another problem-grounded wiring somewhere, a blown fuse?

The GT has a bulldog security system installed-this is the only major electrical change made to the vehicle. Help is desperately needed guys. Thanks.

it really seems like you have a short somewhere

Check to see if the altenator fusible link in the fuse box is blown. If its blown the alt cant charge the battery.

Thanks for the info-I try the suggestions and see what I come up with. I'll keep you posted.