Hmm..... , a new tranny and a no-start don't seem like they would be related, unless something was disconnected when taking the old tranny out , and putting the new one back in. Have you driven it since new tranny? Or it's not starting at all afterwards. Btw- how much did the total repair cost? I'm curious because i just got rid of my 94' Grand Am because of a long list of front end problems , transmission being one of them.
______________________________