Bad Engine Coolant Temperature Sensor
Bad Engine Coolant Temperature Sensor . Significant reduction in the fuel economy. However, the normal engine temp should be in the range of 195 degrees to 220 degrees fahrenheit. '89 F350 coolant temperature sensor Diesel Forum from www.thedieselstop.com When the sensor fails, the engine may not be able to properly gauge the temperature of the coolant, causing it to run too cold or too hot. If there is some problem with the ect sensor of the car, the ecu of the car will notice this fault and notify you by illuminating the check engine light on your dashboard. If this happens then consider having it replaced.