My vehicle is overheating replaced thermostat i bleed the system the fan clutch dont turn in the on position they work unpredictable for a while I ruled out that the head gasket is not damaged . replaced the reservoir . Still overheating gauge shows overheat
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2003 Land Rover Freelander Question: COOLING SYTEM
Answer #1FCRnSales from Foreign Car Repair, November 01, 2010, 13:32Enthusiast
Usually overheating is caused by lack of flow through cooling system. Since the thermostat has been replaced, there could be a blockage at the radiator. This would show up by hot and cold spots on the radiator cooling fins and we use a temperature laser gun to check this. You can rule out the auxilary fan by seeing if it still overheats while driving over 30 mph consistantly. Usually the auxilary fan only plays a part when you are in stop and go traffic. There is usually a temperature sensor that activates the auxilary fan.