Assuming you mean coolant, coolant loss could be as simple as a loose hose clamp or as bad as blown head gasket or worse, a cracked head. Have a trusted mechanic pressure test the cooling system to help diagnose the problem.
yes but why would you leave it loose?
A Cracked reservoir Cap would in most cases cause your car to over heat. After your car has ran a while, and built up pressure it would begin to loose water in the form of steam. Once your car is parked and shut off it will then begin to loose water. Once parked your car looses compression which causes the water to boil instead of steam. You would then loose water at a faster rate emptying your radiator and causing your car to run hot.
Could be a head gasket problem.
probably got a loose alternator belt..
You may have a loose rod or loose roller rocker
if you have a cracked distributor cap then water would get inside it and make your car stall.
Loose spark plugs would result in a loss of compression. This would make starting difficult and if the engine ran at all it would do so badly.
possibly just loose, check the big nut on top and make sure it is tight.
Maybe the belt for the water pump is loose
Yes.
6 inches of water No 6 inches of water can cause you to loose traction and hydroplane but 24 inches of water is needed to actually float the car
Loose or glazed fan belt?