radiator fan not working sometimes

Sorry about the confusion. First you need to unplug the wiring connector.

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. Finding the exact cause of a radiator fan motor failure is not always easy and unless the cause is obvious diagnosis. If your Edge has a bad engine temp sensor the radiator fan wont know to come on because the ECU wont know how hot the engine is. If the radiator fan turns on then it is most definitely a bad.

This will help kee. If it clicks you can assume the relay is working. If the AC compressor fan is not working these could be the probable problems.

Another common and easily remedied situation that sometimes results in a central air conditioner fan not working is a dirty clogged air filter. Before the fan will come on. Sensor on the passanger side of.

If there is no sound to indicate that the compressor and fan are working it points towards a break in the power supply or a faulty compressor contactor. Its behind and above the starter on the left sidegrin. Answer 1 of 11.

Httpsamznto2G5lxTi Check out our Amazon Store for the tools and. If you have to drive the car without the fans make sure to turn your heater on to full blast. Take a jumper wire and push it into both female pins inside the connector.

If it doesnt come on replace the radiator low coolant. Only show this user. Here is the situation.

If it is not replace it immediately and this should take care of the problem. Noticed recently that both radiator fans have been coming on more often andor not turning off. Your systems air filter traps dust dirt and other airborne pollutants to keep indoor air and internal cooling system components cleaner.

RADIATOR FAN STAYS ON ALL THE TIME CHEVY CHEVROLET GMC BUICK CADILLAC Car Scanner. Youll need to locate and test the engine temp sensor. Make sure you have a good charge on your battery and the Ignition key is turned to the correct position.

Sometimes the fan work correctly for a few hours and then stops and the engine overheats. See if the drivers side fans comes on. If you think the cooling fan isnt working because your temperature gauge is indicating overheating open the hood start the engine and let it idle for 15 to 20 minutes.

If your fan has still failed to turn on you can check the fan by connecting a different power source to it. Have a 2004 WRX wabout 133000 miles on it. There is no clear pattern.

You can apply 12v and ground to the right side relay spades and listen for a click. Discussion Starter 1 Nov 16 2012. Then I reset ECU through removing negative battery terminal and works again for a little while.

Depending on the model year and engine the location varies. Voltage spikes high resistances in control circuits defective vehicle batteries bad wiring short circuits moisture corrosion and even excessive vibration due to damage to the fan itself can all cause a fan motor to fail. If the engine is heating but the fan isnt kicking in check the fan wires.

Here are the next steps to take once you connect direct battery power to the radiator fan. If its not cleaned or replaced regularly a clogged air. Hopefully I made myself clear.

Other then that the ECM controls the fan via the input from the temp sensor. If the fan comes on you may have a bad temperature sensor or gauge. I can tell you though that these relays are pretty much bullet proof.

If youre moving air will flow over the radiator and cool it down. Testing this theory is simple unplug the radiator fan switch connector plug from the thermostat sensor. In that case the inside fans cannot stop working.

I would check the electrical conditions and look for any damaged wires at the sensor and fan. Start the car and let it idle with the AC off and. It will have to get to operating temp.

Make sure the fuse for the radiator fan is intact. My radiator fan does not kick in at the usual 108C sometimes it only kicks in when I start the AC sometimes not. Gauge never goes above half way so the engine doesnt appear to be over heatingand its also been real cool here and I.

Start by unplugging the wires. Get a fuse kit here with multiple sizes for multiple quick repairs. Found the problem it was the temp sensor.

If the compressor is working but not the fan it is indicative of either motor or capacitor failure. The thermo switch at the bottom of the radiator is the weak link in this circuit. If it does end up being this sensor they are very affordable.

However when you come to a stop or get stuck in stop and go traffic youre going to overheat. Sometimes when AC is onby which I mean the inside fans are on the outside fan is not on and it looks likeI am not sure the compressor is not working either because I cannot hear any noise from it.

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