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Heater hose hot one side cold on other - F-150 Ford Cars & Trucks

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If it is hot on the engine side and cold on the radiator side then most probable the water pump is nonfunctional. The water is not circulating and hence remains hot on the engine end and cold on the radiator end. The water pump needs immediate attention as the engine may get harmed if not rectified.

Posted on Jan 02, 2011

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