The fan is still not working even after I changed the coolant temperature sensor and the fan relay. When engine is running I unplugged the coolant temp sensor and the fan went on. So, I know the fan is working, just not when it is supposed to. Please help, thanks!
2007-06-16 11:44:41 · 2 answers · asked by LISA V 1 in Cars & Transportation ➔ Car Makes ➔ Pontiac
unplugging the fan sensor should come on it is the default from comp. Normally the fans shouldn`t come on untill around 200 degrees are u sure it`s getting that hot. Please note there is coolant temp sensor and fan temp sensor . If u mix them up your computer might be reading the wrong resistance.
2007-06-16 16:22:26 · answer #1 · answered by miiiikeee 5 · 0⤊ 0⤋
The coolant temp sensor completes the relay circuit so the fan can come on. You must wait until the engine gets hot enough to activate the sensor. You really have a problem if unplugging the sensor makes the fan come on.
2007-06-16 13:31:55 · answer #2 · answered by eferrell01 7 · 0⤊ 0⤋