Question about 2003 Dodge Grand Caravan AWD

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I have dodge grand caravan the heat some times blow cold air and some times blow hot air i dont know what is the problem

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  • jumano Feb 26, 2009

    what kind of coolant to use ,where to add the coolant i dont have tha owner manual

  • jumano Feb 26, 2009

    what kind of coolant, where to add .i dont have the manual

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First thing to do is to check your engine coolant level

Posted on Feb 26, 2009

  • Jim Bay Feb 26, 2009

    Prestone or something similar. There should be a white plastic overflow bottle with a with level lines for both hot and cold conditions easily visible in the engine compartment. Make sure that the green fluid levels are correct acxcording to the fill lines on the bottle and the engine temperature.

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You may have air trapped in the lines to or from the heater core.
If you (still) have a real radiator cap on the radiator, remove it with a cold engine, start and run the engine allowing it to warm up while watching the water/coolant level. Make sure the heater control is set to its highest heat setting while doing this. If it is trapped air, you may see it 'belch' after the engine is warm and the engine thermostat is open. Refill as needed if this is the case.
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