My car over heated but I did not notice until the car shut off as I was getting off the freeway. After the car cooled down some hours later, I tried to start and the car started and ran but, I noticed that the fans were not coming on
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Re: Radiator fan and a/c fan are not comeing on?
Chances are your fan relay is bad,the temp sensor is bad or you fan motors are pad. first the relays are the problem 80% of the time so iw ould check those first it's located ina fuse box under the hood or the dash.
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There are two fans on many cars, but one is for the radiator cooling fan and the other is an auxiliary fan which is energized when the air-conditioning is turned on. Try turning on your air-con and see if this fan comes on. Pressure test your system. You won't know if you have a coolant leak for certain until this has been performed.
You can raise the hood and let the car run untill the water temp gets hot and the fan should come on and the temp hand riseing after getting off freeway could be that at faster speeds you have more air going thru the radiator so make shore the radiator dosent have any trash stuck to the front of it . And it is electric fans so their wont be a belt and if you are having to add water often it sounds like you may have a small leak somwhere.Hope this helps.
it sounds like one of several problems radiator needs flushed , water pump is bad or going, thermostat is bad, pin hole in one of the hoses, cracked head, hole in radiator, hole in heater core.if core is leaking you will notice water on the floor inside the car on pasenger side. if radiator has hole when you fill radiator with coolant it will leak froom fins sometimes only when hot. thermostat bad your car will read hot and or cold always. if stuck open cold, if stuck closed hot, after about 15 20 mins of running engine will cause radiator to boil over to over flow tank.never open radiator cap when engine is hot :) burn hazard.if pump is bad or going will notice gauge reads hot intermittent or always. will boil in to overflow tank. if head is cracked will notice water comming from side of engine block or in oil when you change oil. if radiator needs to be flushed will notice scale or gunk on radiator cap (if you think you need help or do not have tools to perform please take to a machanic)
I have a 2002 Honda Civic Ex, it has been over heating but only in stop and go traffic, never on the freeway, i have replaced, timing belt, water pump, cooling fan relay, cooling fan switch, flushed radiator. There is no white smoke coming from the tail pipe and the oil is clean, when the car gets hot i can smell the coolant pretty strong, car has never completly overheated gets about 3/4 of the way til red.