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i'm going to replace the thermostat this weekend with a dealer part, but the hose is hot indicating the thermostat is opening?????? The fan turns on and off. I don't know where the sensor is for the fan or the water temp, but if I did I would replace them both. Also I just noticed after driving for ...

I have the same overheating probs on my 93 DOHC MX-3 I've read so much about- after 20 mins of driving the temp shoots up. I replaced the water pump, thermostat, and flushed radiator. Fan works. But what helped the most was replacing the radiator cap. Now it runs much better but the temp still start...

yeah it's a SOHC

can someone explain the purpose of that little coolant hose? It's about 3/4 inch diameter and about 7 inches long and connects next to the thermostat. Mine keeps getting little pinholes shooting fluid onto the engine...