Your temperature sensor, located on the thermostat housing could be faulty or unplugged.
The 1991 Toyota Corolla cooling fan will stay on all the time if the temperature sensor is malfunctioning. Replace the temperature sensor.
Replace the starter. All will be well.
If you have the A/C turned on the cooling fan will run continuously which is normal. If that is not the case then the thermal relay may be stuck shut.
Of all time it is the Toyota Corolla.
Toyota Corolla
Toyota corolla
Toyota corolla
Corolla
Why does the temperature gauge on your 2001 malibu not work and the cooling fans run all the time?
Simply bypass the cooling fan thermostat .G
Changing a rear license plate light on a 1991 Toyota Corolla will be very easy to do. You need to take the license plate off and then unscrew all the plastic screws holding the light cover in place. After the screws are out, remove the cover and unscrew the old bulb and replace it with a new one.
bad temperature sensor