I have a 2000 Mustang V6 3.8. Sometimes when I am driving it will loss power(electrical) power like the batt. has came disconnected. But it is only for a split sec or two and come right back on. Also sometimes after driving it, I will got to get start it up and the car has no power at all. Its like the batt. I have no power what so ever. And I will trun the key off and wait bout 5 or so mins and try to start it again and will have power and start right up. But while waiting for it I will jiggle the batt cables, I habe replaced all the batt cables pos. and neg. and I am still having the same problem. Does any one have any ideas please??.
Primer2tone is correct, you should check the cables and terminals and make sure that nothing is loose and everything is connected properly. Last thing you want is your car turning off at the worst time possible.