147 TS Overheating
I absolutely love the car but I'm having some issues with my 2001 147 2.0 TS overheating.
I got the car in December and changed the thermostat to which was dead and didn't allow the car to heat up to 90 degrees. All was well after replacing it until now. The car overheated and popped the top hose emptying the coolant.
After repeated attempts to refill and to bleed I haven't been able to stop it overheating and boiling the coolant. Adding blue coolant to the water seemed to fix it very temporarily but then it started climbing above 90 degrees again and it was back to overheating every time.
I changed the thermostat again today for another Vernet item from eurocarpants, hoping the thermostat had gone faulty but this didn't make any difference. I verified it opened at 90 in a pan of hot water. Seemed to only really open at 95 but that could be my thermometer.
The symptoms are that the car starts to warm up normally, no excessive coolant pressure, temps climb reasonably quickly and as it pushes past 90 degrees you can feel the radiator top hose starting to warm up a bit but the radiator stays cold and only ever gets luke warm. The bottom rad hose never gets warm, and possibly feels slightly less pressurised than the top one. I've tried using the bleed points on the radiator and heater circuit to remove excessive air both before running and as it heats up. I've checked the timing belts and they look okay, but I haven't taken out the water pump yet as they aren't meant to be a popular culprit. I ran water through the rad with the hose but there didn't seem to be any major blockage. The heater inside gets warm (i keep it set to 'hi') but not until temps get above 90 and it cools down again. It doesn't seem to be circulating the coolant much if at all. :-S