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Joyner Renegade R4 - Coolant Thermometer Reads HOT


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Coolant thermometer gets to max temperature after about 7-10 minutes idling, above the 237 degree marker.   However, the coolant temperature light does not turn on.  Radiator hose is cool, the hose to the block is hot, but not extremely hot.  The engine block doesn’t seem to be hot either.  The thermostat opens up and works. 

Does anyone know what the issue could be?  Faulty water pump maybe? 

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  • MJG changed the title to Joyner Renegade R4 - Coolant Thermometer Reads HOT

I ended up replacing the thermostat and flushing the radiator and coolant with new coolant.  It was quite dirty.  Seems to be working better, but still running a bit hot. I also bought a new water pump for it and going to end up changing that to see if that regulates temp much better. 

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