96 GT randomly won't start Options

[grntrefrog]

New owner, wondering if anyone has had or heard of anyone who has had this problem. I bought it a month and a half ago, a used motor with less miles was put in at the time when I bought it. They put in a new starter, battery and alternator. About a week ago it didn't start, I took it to the mechanic twice, they changed the battery twice. Still having problems with it starting, anyone have a clue?? Think it could possibly be electrical problem.

UPDATE:
Problem seemed to go away on it's own, had no problem starting for about a month and a half; went out again one day, and it had the same problem. Seems to have gone away again. When this happens the relay clicks once and she has power. Seems I'll be playing Russian roulette every time I go out to start her.

This post has been edited by grntrefrog: Jun 4, 2015 - 11:21 AM

[Box]

When it doesn't start does the car still have power? If so does it try to turn over or does only the relay click if that? It could be during the engine swap some grounds were forgotten or not tightened all the way.