I have about 80k on a rebuilt B230FT engine (rebuilt by Volvo) in my 940T wagon. It¹s been running great. Suddenly, I lost power, engine temp. went way up and I began blowing huge clouds of steam out the exhaust, definitely not smoke. A couple of uneducated guesses: -blown head gasket -blown turbo There doesn¹t appear to be water in the engine oil or vise versa. No leaks in hoses. What¹s causing this? Any guidance on possible causes would be greatly appreciated. TIA, Felix