Why is my car still having the same problem could it be the voltage regulator?

You see once the battery has become discharged to the point of engine stall due to a failing alternator - the engine wouldn’t start back up without a jump start - even then as soon as the jumper cables were removed - the engine would simply stall immediately due to insufficient voltage for engine operation.. There must be other deficiencies at play when the engine stalls.

So it can be electrical. Or can it be the voltage regulator. Its in the shop and they said they took the car for a ride and nothing happen. But yet it shut down on me on Saturday and Sunday while driving home.

Yes - it can possibly be an electrical failure - - - However it is NOT caused by the “voltage regulator” ..

Ok came out the shop today ran fine until five hours later went out and it did again. When i shifrt gears it makes aloud noise the keeps reveing up and as i was driving it wouldnt allow me to go fast. Then parked it up. For about 15 mins n it started like nothing ever happen