Question about 1994 Saturn Sc

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I had the radiator fan connected to a switch because the fan which is brand new wont turn on when the car gets hot so whats the problem there?

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The temperature sensor is bad, which is located on the theromstat housing

Posted on May 13, 2009

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Radiator fans


I dont know what year model you have but the newer one will run when car is turned off to cool radiator. Maybe you have a radiator problem if this just started to happen. Is the car over heating. Did you check radiator fluid or thermostat. I dont know much about your car and year model but i would do these checks. Maybe radiator needs to be flushed. You can use aluminum brite for to flush. Can buy it at O Reiley's. I had to flush my daughters radiator about 10 times when we bought it used, fithy. Looks brand new. Please dispose of chemicals properly. It is an acid.

Apr 16, 2014 | 1993 Chrysler New Yorker

1 Answer

2002 Dodge caravan overheating, gage spikes up to hot, but were not seeing any fluid leaking besides when it gets hot steam comes from cap. found crack in radiator so we replaced and changed thermosta


I would check the fuses first then the fan relay , if you find two identical relays you just have to swap them to determine if there any good , if the fan starts working then get a new relay, if the fan still won't work then replace the fan thermo switch (usually located in the bottom part of the radiator facing the engine) if the fan still wont work then replace it. The best way to test the whole system out is to start the car and turn on the air conditioner (and blower fan) this should turn on both your fans, if the fans dont come on , check the fuses,relay and then fan motor then thermoswitch

Nov 18, 2013 | 2002 Dodge Caravan

1 Answer

The fan to the radiator wont come on


could be radiator fan switch, to test turn on AC and see if fan comes on, if not locate the relays for the fan and jump them out if fan comes on replace the relay (some models will have multiple relays for three speed engine fan operation. here's a link to help diagnose http://www.aa1car.com/library/electric_cooling_fan.htm

Nov 04, 2012 | 1989 Plymouth Voyager

2 Answers

98 civic ex coupe. Car runs really hot. Replaced radiator, thermostat & gasket, water pump & timing belt, numerous hoses. Car doesnt leak & has had a leakdown test & pressure tests, passed...


it could be a possibility that the engine is running at normal temperature but your gauges are telling you that it is running hot the only way to tell is to get a temperature gauge & connect it into the water system somehow to give you an accurate reading or take the vehicle to a radiator repairer & they may be able to do it for you..........hope this helps.....cheers.

Sep 23, 2011 | 1998 Honda Civic

1 Answer

Radiator fan not operating could be fuse don't know how to change 1994 lancer


Look in your manual for fuse diagram LOOK FOR A RELAY, put a "RF" on top of the "Radiator Fan relay and find another with same part number. in the fuse compartment. ie Air Cond. put an "A C" on that one, switch them out and get engine HOT to see if fan works, turn AC on too if it works the relays are both good. next things to check [a] "Temperature switch" on block, or [b] corroded wire terminal at firewall connections [c] the fan motor could be bad ...... that Radiator fan operate TWO ways. (1) a hot engine (2) turn the AC on high will also turn it on. Check this first before U get your hands greasy.

Mar 20, 2011 | Mitsubishi Lancer Cars & Trucks

1 Answer

I had a new radiator installed and now the car is running hot. What would cause the car to run hot?


Check when cold that the coolant level is full in the radiator. Check it at the radiator not just at the orerflow tank. There may have been air locks in the engine - heater or hoses when the radiator was fitted . Also check that if it has an electric fan that the sender plug has been re attached to the sender switch on the radiator and that the fan is operating when the engine hot. The fan should come on for a minute or so then turn off until the sender switch turns it on again.

Feb 23, 2011 | 1996 Mercury Cougar XR7

1 Answer

I have a 1998 pontiac grand am se, and i have had to replace my radiator several times in 2 days and each time i replace it it leaks in the same place. I am wondering what could be causing this problem...


is your engine running hot? did they replace it with new radiator or just patch it up. I only reason why your car do what it does is that the radiator is building up too much pressure and not circulating through the engine. replace the thermostats and the switch along making sure you colling fans is working. does the fan run at all when the engine is hot? turn your ac button off so that way the ac fan is not running. see if you cooling fans kicks on when idling long period, watch your temperature, don't let it get hot, if it does turn it off and have the fan check and the water pump; change thermostat and the switch if you haven't had it done.

Sep 24, 2009 | 1998 Pontiac Grand Am

2 Answers

Suzuki Alto ejects randomly water from the radiator.


fan will only run when engine is hot,check its working ???if not check the relay connections.if and when you get the fan working see what happens,if it persists then bypass and run fan continuosly ,,see what happens if it still happens with fan on all the time then two possibilitys,,,,,head gasket or plastic impeller on water pump sliding on shaft and not turning ....

Dec 09, 2008 | 1991 Rolls Royce Rolls Royce Silver Spur

1 Answer

Over heating


Check fan thermostatic switch. Could be in the radiator or by the upper radiator hose on the engine. The thermostatic switch is what turns the fans on when the engine gets hot.Fans are supposed to come on when the A\C is on.

Jun 16, 2008 | 1988 Toyota Camry

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