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why does heat blow hot when moving and cold when stopped
1999 Ford Windstar

Why does heat blow hot when moving and cold when stopped

(1999 Ford Windstar)
when vehicle is moving heater blows hot ,when vehicle stops blows cold. fluid levels are good
in Providence, RI on January 15, 2011
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2 answers & 1 comment
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on January 15, 2011
What does the temp gauge read? If the t-stat is stuck open, it could potentially cause this concern. Also, there could be a lack of coolant flow. Run the engine to operating temperature and feel the heater hoses in the engine area going into the passenger compartment- both should feel about the same temperature. A possible restriction in the heater core may also be a problem.
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on January 17, 2011
temp gauge reads normal about half way and steady
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on January 15, 2011
What does the temp gauge read? If the t-stat is stuck open, it could potentially cause this concern. Also, there could be a lack of coolant flow. Run the engine to operating temperature and feel the heater hoses in the engine area going into the passenger compartment- both should feel about the same temperature. A possible restriction in the heater core may also be a problem.
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on January 17, 2011
temp gauge reads normal about half way and steady
low coolant leval
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