coolant temperature sensor are located where the coolant runs in the block near the thermostat housing normally the connector are on top of the sensor and the sensor itself screws in with a deep socket.
The temperature sensor is usaully located where the coolant runs OUT of the engine close to thermostat housing.
Vehicle make, model & engine size needed first.
The coolant temperature sensor can be found on the front of the engine, near the thermostat. Remove the coolant temperature sensor retaining nut, to replace it.
Coolant is used to keep an engine in a vehicle at a temperature safe for operation. If no coolant is in the reservoir, an engine will not start.
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The engine coolant temperature sensor is usually on the front of the engine. The coolant temperature sensor will be in the vicinity of the thermostat housing.
After coolant is added run vehicle to normal operating temperature and re-check coolant level
the average coolant temp depending on what thermostat is in the vehicle shold be between 175 degrees and 190 degrees
The coolant temperature sensor of a 1998 Nissan Altima is located beside the upper radiator hose. It constantly updates the vehicle's computer about the engine's temperature.
Modern vehicles are equipped with multiple temperature sensors. They are used to advise the engine computer and driver on the condition of the vehicle systems. Common automotive temperature sensors include coolant, transmission, ambient air temperature and engine oil.
Check to verify the coolant level is full. If the vehicle has a engine coolant temperature guage, does it reach and maintain a normal temperature duing vehicle operation? If not have a mechanic check for a leaking head gasket.
The coolant temperature sensor on a 1999 Mondeo is located on top of the engine, in the intake manifold. It constantly updates the vehicle's computer and controls the cooling fan.
Not functioning properly If stuck closed engine will overheat--no coolant flow through engine. If stuck open--vehicle will not warm up to normal operating temperature - no heat in passenger compartment--poor fuel economy