Temp. Gauge stuck on Cool - Toyota Nation Forum : Toyota Car and Truck Forums

josephah2000 · 11-06-2004, 12:23 PM

Any suggestions?

I replaced the thermostat and coolant temp. sensor. What else?

josephah2000 · 11-07-2004, 12:19 AM

Anyone???

JekylandHyde · 11-07-2004, 04:52 AM

There are three coolant temps sensors:
One for the ECU, one for the dash gauge and one in the radiator that turns the rad fans on.

Are you sure you replaced the correct one?

josephah2000 · 11-07-2004, 11:32 AM

So far I replaced the green coolant temp. sensor. (ECU) There is also a grey coolant temp. sensor (gauge) but I have not replaced that one yet because the gauge will go up if I turn the car off but as soon as I turn the car on it quickly goes back to Cool. I'm confused.

josephah2000 · 11-07-2004, 01:52 PM

Ok, FYI, I replaced the temp. coolant sensor (grey) (gauge) and it is working like a charm now. Although I had to replaced the temp. coolant sensor (green) (ECU) and thermostat before getting to that pt. All in fun.