change your antifreeze fill cap.
A crack near or on the thermostat housing can cause a coolant leak in a 1996 Grand Marquis. The thermostat housing is located near the manifold on this vehicle.
Probably the thermostat is sticking.
Diesel Grand Vitara engine problems can be caused by low-quality oil or coolant leaks. Fouled spark plugs can also cause the problems.
It could, if enough coolant leaks into the cylinder to hydraulicaly lock it.
3.1 engine leaks at the intake gasket
what is it leaking? water, oil,coolant,or gas
First check the truck for coolant leaks, make sure the coolant level is o.k. If it is there could be a blockage in the radiator or hoses if you have no idea what you are doing take it to an automotive repair facility an overheat could cause severe engine damage
No, but if coolant is leaking it is probable that the whole cooling system is old and needs replacing (which is why other leaks appear). fixing a leak pressurizes the system which could create a leak at a different weak point in the system. clamps and hoses are the easiest locations to start with.
If by water you mean engine coolant, yes. Loss of coolant, antifreeze, is a major cause of overheating.
It could just be that the water pump is not properly working. Have you checked all the could-be causes for your car overheating if not then do so.
thermostat sticking or low oil or low coolant
Yes, If to much leaks out this will cause the engine to over heat, smoke and or stall hence the name engine COOLant :)