Temp sender on the 289 should be located at the front of the intake manifold.
Source: www.AverageJoeResto.com
only 3 reasons a temp gauge wont work the temp sender is bad the gauge is bad or the wire from temp sender to gauge is broken
It's called a temp sender and it is located in front and under the thermastat housing
I had this problem on a 2001 Ford Fiesta. I ended up having to get the temparature gauge sender unit replaced.
temp sender located
Take wire off temperature sender look a guage. If guage at cool, temp sender needs replacement. If guage still at hot, temp sender wire shorted to engine or vehicle body.
Does anybody know the answer to this question??????? YES I HAVE THE ANSWER...REPLACE THE TEMP GUAGE. ITS NOT AS HARD AS YOU WOULD THINK...ABOUT A 20 MIN. JOB ------------------------------------------------ I tried replacing the temp gauge but that wasn't the problem for me. On top of the engine is a temp sender that is all so easy to get to but it is for the engine computer. The temp sender for the gauge is under the water pump. My temp sender went bad because the water pump started leaking. It is like the engine is headed for a major problem of over heating but it disables the temp sender which warns the driver of over heating. It is not easy to change the temp sender but it is doable if you pull off the thermostat housing. Don't put the old thermostat back in. Also, don't get an aftermarket temp sender, I got one and it reads 3/4 hot all the time. It only cost me $5 but I wish I had have bought from the dealer what ever it cost.
where is the engine mangement temp sensor on a ford focus and how is it fitted
temp sensor - sends signals to the computer for driveability temp sender - measures temp and sends to gauge in dash
If your temperature gauge isn't working the problem is a bad gauge, grounded or disconnected wiring or, most likely, the temp sender isn't working.
temp gauge is stuck on hot
The temperature sensor (sends coolant temp to the PCM) is located in the top of the thermostat housing. The temperature sender (sends coolant temp to the gauge) is located in the bottom front of the same housing.
Depending on which intake manifold you have there may be a plug in it near the thermostat housing. Also, each head will have a plug on the side. One is usually fitted with the sensor for the original gauge. This is the usual spot for wiring in an aftermarket gauge.