so i shut my car down and when i came back to the car i would not start, i did some investing and i have no electrical at all, no head lights no dome lights no hazards no nothing.

and yes my batter termals are on tight, and the main fuse is not blown, any ideas?

 

def main fuse blown. had the same happen to my car. easy fix though just pull off the bezel and it should be behind that.

 

If you have absolutely no power, then either your battery is dead, disconnected or the main fuse is blown. Those are the only three things that can cause a totally dead car.

If the main fuse blew, you also need to figure out why.

 

I have seen battery terminals that appeared absolutely clean have enough corrosion underneath to cause a total loss of conductivity. Pull the connectors and clean the terminals.

 

the batter was shorted internely, the positive post came loss form inside the battery. i had 12.v but 0cca