So my 1990 240 has been overheating the past few days and I took it into my regular Volvo mechanic to have it looked at. When I would pop the hood after driving a short while I was greeted with billowing steam clouds and a hissing noise that could be identified as some type of leak. In the past few days, I have had the thermostat replaced, temp sender unit replaced, and I have had a loose bolt that seemed to be causing a leak tightened. Now when I drive the car it takes much longer to heat up but it still overheats. Now when I open the hood less steam comes from the engine. My mechanic had thrown around the idea that it might be a problem with the heater core? Any suggestions....please....because I know these are the types of recurring problems that can cause one to get rid of a car. Thanks.
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1990 244DL - K&N, airbox mod, 2 15' JLs, Brickstylz body kit, underbody neon (2.5' straight pipe exhaust system, performace cam to come!!!) all at 255K+ miles. 1998 S70 GLT - mom and dad's car. If only....