ok, i put a new starter in my gta today, and i love the brilliant engineer at GM who decided to put an exhaust pipe directly underneath it...anyway, i had to disconnect the negative before i started for safety and when i plugged it back in i couldnt start the car, there was no power to the starter, accessories, lights, interior, nothing was getting power...i tried cleaning my terminals, i tried jumping it with my old car...so then i put my battery tester on the end of the terminals and discovered that there was still power to all the wires coming from the terminal, which leaves me where i am right now...clueless and out of possible solutions...please let me know if anyone has any suggestions

thanks

 

check your fuse panel for any blown fuses!

 

Check your battery terminals to make sure they are tight it happend to me a couple of times. it is verry east to look over something like that