I have a 92 es300...I took it to the dealer because the engine was overheating. after replacing the power steering pump and installing a new thermostat they said I was ready to go...I drove the car home and coolant was pouring out of the overflow. I know this is not enough info but they pressure checked the system for leaks and said everything was fine...does anyone have any Idea where I can look next to solve my overheating problems.