Coolant tant looks full on the out side but when i open the cap i dont see anything so i put water in the tank ..and then when i drive car smokes but its because water/coolant coming for the Cap
My car has an automatic transmission.
The smoke that you're seeing is evaporated steam caused by an overheating situation. This could be caused by several mechanical issues going on inside your car such as a coolant leak, an obstruction in the coolant lines (like an air bubble or debris), a broken thermostat or water pump issue. If the overflow tank was empty, then its likely that your coolant level was very low or that you might have a leak.
My best advice would be to contact a local ASE certified, such as one from YourMechanic, who might start with a radiator flush and diagnose any other issues that are causing the overheating situation.
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