Does anyone know what the normal operating temp of a '92 5.0 liter SEL engine is? I replaced my faulty aux fan switch with a value of 85 Celsius and both the engine and aircon runs cooler at 90 C. However, the aux fans never shut off and are bound to break soon this way.
If I use a switch with a value a bit higher than the engine's normal operating temp, then the aux fans won't have to be running all the time and will only come on only when normal temp is slightly exceeded.