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There has been some talk that the Mercury Villager doesnt have a great cooling system, sometimes a bigger radiator replacement might help.. but either way you have to keep the coolant, timming, etc in perfect state.

The reason why it goes from normal to hot then back to normal is because that is usually when the temperature rises hi enouth for the thermostat to open up and lets the cooling back in circulation thru the whole system...

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16y ago

What else can I help you with?