Radiator Fan Not Running

See contact test in step 1.

Tower fan in tesco. This was made possible through a belt that derived power from the engine. Ohm test the blue wire. Here are the most common reasons that your radiator fan does not turn on.

Whenever the engine would start the radiator fan would start spinning. If theres voltage running from the relay to the fan the problem is that your fan is faulty and needs to be replaced. Run jumper wires between the connectors two electrical terminals.

If the relay shorts internally it may cause power to be permanently switched on which will cause the fans to run at all times. If the fan does not turn on you will need to replace it. If the fan works then you got it.

If resistance is more than 5 ohms you have a open in the wiring harness. If you have tried everything mentioned above and your fan is still not working then that means it is time for you to invest in a new one. Here are the most common reasons that your radiator fan does not turn on.

Radiator fan testing points. Unplug the radiator fan connector. Try installing a jumper wire between the blue wire at the pcm and connect to the blue wire at the fan module to bypass any fault in the harness.

If there is not you need to check both the wires and the fan relay to see if replacement is required. If it is blown replacing the fuse will only solve the problem for a very limited period of time. Do you have a dodge caravan chrysler town and country or plymouth voyager van and are experiencing an overheating condition while in traffic or at stops but.

The first thing that you would want to do is locate the fuse for your miatas radiator fan and make sure that it hasnt blown. If your cooling fan runs continuously check the fan relay or cooling fan temperature switch or engine coolant temperature ect sensor. Step 4 check the engine coolant temperature ect sensor.

Before poking your hands around your fan make sure to treat it like it still could come on and and keep your hands out of its path. Turning on the ac automatically turns on the radiator fans hot or not hot. Before going into the necessary steps to troubleshoot the fan in your vehicle though a brief fan operation description follows.

Remove the connector form the pcm and the fan module. Cooling fans stay on at all times. Before poking your hands around your fan make sure to treat it like it still could come on and and keep your hands out of its path.

In order for the ac condensor to do its job it must stay as cool as it can. If the cooling fans are staying on at all times this is another less common symptom of a possible problem with the cooling fan relay. As for the engine coolant temp sensor if the coolant is not hot enough to make the fan come on then there is no need for the fan yet and there is no problem.

If it is blown replacing the fuse will only solve the problem for a very limited period of time. The fan relay will be under the hood. The first thing that you would want to do is locate the fuse for your cr vs radiator fan and make sure that it hasnt blown.

Use a voltmeter to check that there is current present.