2007 PT Cruiser Overheating
I have replaced the thermostat, radiator, and fan, flushed the lines, hoses okay. It sometimes overheats and as soon as I turn the heater on the temperature goes down. Sometimes I smell coolant. Any other ideas why it is running hot? Water pump is circulating also.
If the temp goes down when you turn the heater on that tells me the radiator cannot get rid of enough heat. Try some Redline water wetter in the radiator and it may help reduce the operating temperature. You may need a heavy duty radiator with more cooling capacity.
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Kelly Little Ashford