3.4 liter engine. lowspeed fan 217 degrees. high speed fan 230 degrees. 3.8 liter engine. lowspeed 212 degrees. high speed 221 degrees.
Under normal conditions the thermostat opens at 195 degrees. The water temperature will reach between230 to 235 degrees and the cooling fan will come on and cool down to around 200 degrees and then shut off.
The engine temperature must reach 232-235 degrees in order for the cooling fans to come on. They will shut off at about 195-200 degrees. Also when the air conditioner is on the cooling fans automatically come on regardless of temperature.
Do you mean the cooling fan? If so engine temperature has excedded 235 degrees Check coolant level
Begin by removing the wiring harness from your 2005 Chevrolet Impala horn. Remove the horn retaining bolts. The horn will come off.
While many cars today come with child locks as a standard feature there are some that do not. One of those is the 2005 impala.
The cooling fans on a 99 Nissan Maxima will not come on if the coolant temperature sensor is defective. The fan only comes on when the temperature passes a threshold.
Usually between 220 and 230 degrees.
When 1990 Honda is running cooling fan does not come on but comes on when engine is off and I thermostat and temperature switch changed?"
replace the cooling temperature sensor
Usually 210-230 degrees F.
Check the temperature sensor
With the radiator full and the recovery tank 1/2 filled you will need to start the engine and when the temperature reaches 232 to 235 degrees the cooling fans should come on. If not then take it to a repair shop and have then diagnosis the problem.