Anyone have any idea why my car is overheating? I have a 90 si hb with b16. Looked down at gauges yesterday and temp. was rising fast so i pulled over and the radiator overflow tank was overflowing. Wasnt a stuck gauge...this thing was hot. Also, the fan WAS working. So i checked my hoses and they were in pretty bad shape but didnt look like they were leakin. So I took out radiator , did entire coolant flush 50/50 and replaced the 2 hoses. Going to do thermostat today maybe its stuck closed??? Any help would be appriciated. Thanks. JT