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Thermostats
Dodge Ram
Saturn Ion

Where is the thermostat on a 2004 ion The car overheats while idling but cools down as we statrt to drive on or turn on the defroster?

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June 30, 2008 3:02AM

Thermostat should be located in the removable housing at the engine end of the upper radiator hose Radiator may be clogged or flow restricted the defroster kicks on your electric radiator cooling fan--bypassing your fan relay and temp. switch--so its probably one of those