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  1. H

    Cooling system issues

    I looked around on the forums and saw some threads about the thermostat housing problems. I looked at mine and saw some residue around the lower part of the housing. My coolant was low, so I'm guessing that it was leaking there. I bought the Dorman replacement kit. It came with everything, even...
  2. H

    Cooling system issues

    I have a 2006 Ford Explorer 4.0L SOHC v6. The temp will rise to Hot on the gauge and the idiot light comes on. Within a minute of these conditions, the idiot light will go off as the temp drops rapidly to the normal range. Is this a sign of a thermostat going bad or a bad temp sensor?