If your radiator leaks, obviously it will be low on coolant eventually. If there is coolant getting on the belt, it can cause a squeak that is hard to eliminate, and water will quiet it for diagnostic purposes. Low coolant can cause an overheat, with your mileage, I would not rule out possible internal leakage as a possibility as well. Before considering just having the radiator repaired, have the cooling system tested for the presence of hydrocarbons.
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Wednesday, September 8th, 2010 AT 11:20 PM