Did you take the thermostat out because the engine was overheating before that and you thought this would fix it? If so tell me more about the symptoms. Puntos can get airlocked which is easy to fix and costs nothing, but it can look like a faulty thermostat, a failed water pump, blown head gasket or blocked radiator - but it isn't. I need more details to give you more advice.
Paul J, October 2008