engine coolant
The coolant temperature sensor checks the coolant to let you know if overheating occurs. It also can send signals to the computer system to adjust the engine settings such as air/fuel mixture as needed to be more efficient based on engine temperature.
The 2006 Toyota coolant temperature sensor is located on the front of the engine. The coolant temperature sensor will be a few inches above the thermostat housing.
Drain about 1 gallon of coolant from radiator Remove housing at engine end of upper radiator hose Note how thermostat is installed Clean surfaces Replace thermostat and gasket Re-Install Refill coolant slowly to prevent an airlock Start engine and look for leaks Run engine to normal operating temperature with heater on Re-check coolant level
That would be the thermostat.
on the side of the engine block on the driver side. screws in. has 3 wires coming out of the connector running to the fan.
on the right side of the block just above the trany The sensor is located just above the manfol.
1 gallon of full streangth should be plenty, butch
no switch,fan control is determined by the engine control unit with input from the coolant sensor
where is the coolant temperature sensor locate
I just replaced the thermostat and gave the coolant system a flush and replaced the prestone. Seems to have done the job.
Coolant Temperature Sensor
The PCM (powertrain control unit/computer) sends power to the fan relay based on the output of the coolant temperature sensor reading. The relay then sends power to the fan; thus turning the fan on.
The water pump pushes the coolant through the engine block and head(s) then into the heater core.
The Engine coolant temperature sensor is installed in a coolant passage which is located at the front left cornerof the cylinder head.
The Engine coolant temperature sensor is installed in a coolant passage which is located at the front left cornerof the cylinder head.
remove belt pump is accessable remove bolts make sure coolant is drained first replace