Details:
3.8L (V6)
7 Gear Automatic Transmission
RWD
192,000 Miles
All fluids full
Engine rebuilt aprxmtly. (120,000 miles)(We assume.)

Problems:
1: Rough vibrating- Idle or driving, I assume it deals with the engine. There is no misfire, no check engine light either, and yes the light does work, it did have a misfire recently and it came on before i plugged the wire back on. My uncle mentioned that my spark plug wires when touching metal should fire blue not yellow, i don't know about that just thought i should include it could be the coil ignition pack maybe?

2: Wrong turns- Dies when I turn when I am at a quarter of a tank. Someone mention I have no power steering fluid, and turned out i had none, we filled it up, and still the same problem. However I had to unplug my battery recently, due to the amp regulator from the alternator is going out. (Yes, the alternator is going out. Slowly but surely.) It tried to die picked back up and then died a minute later. But when i first unhooked my battery it had the same affect s when I turn at a quarter of a tank or less. I assume the fuel filter may be old, and it is having a hard time keeping full after getting to a quarter of a tank especially on turns so therefore it tries to die and picks back up shortly after, because I can pump the gas pedal and it shortens the "dieing" notion. Eventually when I getlow enough on gas I have to pump my gas pedal to keep it going for a bit longer before I "Run out of gas." though my needle will say slightly above empty just ever so slightly.

3: Over powered- The Amp or Voltage meter on my dash will slowly climb up to high/red over a month. Right before it reaches it have to unplug my battery to stop it from popping the battery (I assume). In that instance the car tries to die but then picks back up then dies a minute later. I did some research something about a Amp/Volt regulator is going out and that means my alternator is going out? Though it seems to keep my car running and never seems to drain the battery.

4: Starting Problems- I can try to start the car, but when I turn the key the engine will turn no problem. It wont start unless I hole it for a long time (A very long time). Then i must continue this again, but the second time if it don't start it sounds like a grinding noise from the rear half of the passenger side of the engine compartment, the walah third time is the charm. I think ti could be multiple things stated above. one being my spark plugs aren't firing hot enough, fuel filter is taking time to fill up and deliver fuel to my engine, my battery doesn't have all the charge it needs to start it up in one try, and on top of that starter could be going bad and it could be a bit cold natured due to high mileage. (Assuming the engine has not been rebuilt.)