B18a1 obd1 motor swap in a 96 dx, car has been running and driving for over a month daily, no previous issues except for the speedometer bouncing and rough idle, solid mounts...

car drove for about 20 minutes until I parked it, went inside and tried to start the car, just a clicking sound, not turning over. Then power cuts out to everything including headlights except for the interior light and the key ding...

Tightened all connections on the battery terminals and tightened the grounds, still nothing. Power to the dash will randomly come on when I turn the key to accessory, but when I try to start it the car will click and then everything will shut off again... no lights on dash.... Battery was tested at 12.4v any ideas??

 

Could be a dead cell on the battery or a fuse issue

 

starter main was loose, wire was tight on stud but the stud was loose inside the starter..... Can it be related?

 

any ideas??

Going to replace all grounds and battery terminals now...

 

battery tested fine and so did the fuses

 

Under hood fuses too including the big 80 amp ones?

 

Thernostat ground on too?

 

thermostat ground is on along with all other grounds....