Page 1 of 1
radiator fan
Posted: January 15th, 2011, 11:59 am
by chrome730
well my battery was dead so i tried jumping it but i noticed my fan is turning on and the engine isnt even hot. the car wont start cause of the battery. im charging it up now, slow charge, but im trying to figure out why the fan is on. when its cold. any info would be helpful.
Re: radiator fan
Posted: January 15th, 2011, 1:31 pm
by Sleeper6
faulty coolant temp sensor/fan switch that thinks your car is running hot and telling the fan to turn on or a bad relay
Re: radiator fan
Posted: January 15th, 2011, 1:36 pm
by Daninski
Lack of capitalizing can cause this too.
Re: radiator fan
Posted: January 15th, 2011, 6:34 pm
by chrome730
Sorry for the grammar. I was in a hurry to get the question asked and then get to my dads for the battery charger.
Re: radiator fan
Posted: January 15th, 2011, 11:57 pm
by Ryan
If your coolant sensor reads infinite resistance (broken connector, bad thermosensor) the car turns the fan on for safety, because it can't tell how hot the engine is anymore.
Re: radiator fan
Posted: January 16th, 2011, 2:21 pm
by chrome730
Yeah I think im gonna try to replace all my sensors soon, just to spoil my engine. With the rad fan runnin constantly it wont do too much damage will it?