Hi im new to owning a lexus. I have a is200 2002 manual. I was wondering if anyone can help, I had my car for a week,whilst driving it I noticed my temp gauge hit red then dropped right down to cold not able to stop straight away I had to drive it longer and it ended up with steam coming out of my bonnet/grill. Onced cooled I then had to fill the car with alot of water but manged to get it home fine and not over heating. Since then I have bought and fitted a new radiator as well as putting gasket sealer in the coolant and its still slightly overheating on the gauge and losing coolant but no steam. I have done a pressure test and thats fine theres no milky stuff in the oil or oil in the coolant im stuck as to why its still over heating. Iv bought a new water pump and new belt kit and belts that I need to fit. Does anyone have any ideas as to why its still overheating, its only overheating whilst stopped say in traffic or waiting but goes back to normal temp whilst driving.
Please help
