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My car keeps over heating ive changed the thermostat water pump fan sensors and hoses what else can I do?

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Most of today's vehicles use electric fans
they are connected to a fused circuit and turned on two ways, 1, when the temperature sensor reaches the designated range and trips the relay and turns them on. 2, you turn on the AC and that trips the relay and the fans come on,
check to see that your fans are coming on by turning on the AC, if they don't both turn on, they either need to be replaced or the fuse, and or relay, if they come on and yet do not come on during the normal operation of the engine and the engine over heats, the sensor needs to be replaced

Posted on Apr 02, 2015

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It would be good to know what car and what engine you are working on. Does it overheat more sitting still or when moving down the road? Any chance the head gasket is leaking, the valves are too tight, the belt is slipping, the fan shroud has been removed? Is the timing too far advanced? Is the exhaust restricted (bad converter or muffler)?

Posted on Apr 02, 2015

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Depending on the vehicle, it could be a fan clutch. Check your fans for proper turn on/shut off.
Next, check your head gasket. check oil for moisture, and see if there is oil in the coolant or coolant in the oil.

Posted on Apr 02, 2015

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