Unplug the fan jump the conector with twelve volts if it comes on you need too do some extensive testing starting with the fuse and relay try turning on the a/c. the ac and coolant temp sensor control the fan if it douesnt come on repalce the fan chances are it will and you will probly need a auto tech too find the fault in that circuit if it is not the fuse go there first then the relay you probly dont know how to check them heres a quick trick swop it with onother one you knows works from another component see if it come on
Change the thermostat,and fill the cooling system full,check the fuse for the cooling fan,and the relay,and the coolant sensor can cause this problem.If the thermostat is staying closed the coolant sensor will not turn the fan on.
SOURCE: car overheats. have replaced radiator,thermostat.water
Question that I pose is:
Is the car overheating or are you assuming it is as the gauge is telling you that it is?
There are two cheap and simple things that are not mentioned in this post. There is an Engine coolant temp sensor which in all of their innane wisdom Saturn built with a plastic tip and we all know plastic melts fairly easily. This part is a simple fix as it needs a 13mm deep socket and that is it for tools to replace it and it is $10 - $15 for a new on with a copper tip. There is also an Engine coolant temp switch which sends information to the PCM to tell the gauge what the reading should be. Aslo $10 - $15 and a 13MM deep socket to replace. These are common issues with the S Series Saturns. I do however recomend that if you are going to replace them yourself that you empty the radiator of coolant as the sensor and switch are directly in the engine block coolant flow and will give you a nice little shower if you do not at least jack the drivers side up before replacing them.
SOURCE: cooling fans not working on 1995 camaro z28
you have a burnt fan relay...if it were my car i ould run a jumper to the fuse panel so that when you turn the key on the fan will also come on and run.its not hard to do and it will stop the car from overheating
SOURCE: car overheat
The rad fan is required to keep your engine at a normal operating temp. When you are going at hiway speeds the fan is not needed. When you stop then the fan has to operate to keep the engine cool.If the fan is not operating, it could be the fuse or fan relay or temp sensor or computer This problem should be checked by someone who is a professional..
SOURCE: radiator fan not working that cause the car to
have you tried checking the fan relay, of the cooling fan sensor. if you have a tester you can un-plug fan and check if power going to fan sensor. good luck
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