Your Mercury Mountain climber's radiator fan has one of the most most-valuable jobs on the vehicle. It is the last line of defense between you and an overheating railway locomotive. If the radiator fan is not working, it's a of import trouble.
Just because the radiator fan is not on does non mean that it is not working. They are designed to only run when needed. If your Mountain climber is running sulfurous, and the fan is not running we've laid out the most common causes of this issue under.
Mercury Mountaineer Radiator Fan Not Working Causes
There are a few simple reasons that the fan would not be cycling happening. Although the fan itself can go bad, that's by all odds not the place to start a diagnosis.
Here are the most common reasons that your radiator fan does not turn on:
Ahead poking your work force around your fan, make sure enough to care for it like it still could approach, and and keep your hands stunned of its path.
Wiring
The maiden matter that you would lack to practice is situate the fuse for your Mountaineer's radiator fan and make sure that IT hasn't formed. If it is moving, replacing the fuse will only puzzle out the job for a very limited period of time. Unless the wiring issue is fixed, the fuse will blow over again.
The wiring harness itself can go bad. Your author has personally had a cut tire completely pull the winnow wiring out of his vehicle. IT can happen. The fan wiring is about of the many vulnerable wiring in your Mountaineer.
You can mental test the voltage going from the fan relay to the lover itself. If it is getting 12+ volts, the fan should be coming connected. But if information technology's not, which agency the fan has gone bad.
This TV from Ratchets and Wrenches is a phenomenal imagination on how to properly diagnose a wiring problem.
Engine Temp Sensor
Your engine temperature sensor is causative relaying your locomotive temp to the ECU. Once the temp gets so hot, the ECU commands the radiator rooter to get on. If your Mountain climber has a bad locomotive temp sensing element the radiator fan North Korean won't know to arrive on, because the ECU won't know how hot the engine is.
You'll need to locate and test the engine temp sensor. Contingent on the model year and engine, the location varies. If information technology does end up being this sensor, they are very affordable.
Low Coolant
If the locomotive engine coolant level isn't high enough to keep pressure in the engine it wish run hot. But, there won't comprise enough coolant to reach the temperature detector. Without the coolant hit the sensor, the temporary reading leave follow significantly lower than the actual engine temporary. Your Mountaineer's radiator fan will not kick on.
If you do have low coolant, father't fulfill it up until the locomotive engine has cooled off. Adding coolant to a radiator dry enough non to trigger the locomotive engine temporary worker sensing element can cause problems from drastic temperature transfer. Let it cool off refine first.
Fan Grasp
Like any strange batch, a fan clutch will wear out o'er time. If everything else seems along the awake and up, the springs in the fan clutch have worn past the point of prim function and can no longer do their job.
Finis
There are many reasons why your Mercury Mountaineer's radiator fan is not working. Of all the ones listed above, start with the coolant level, so insure the fuse. After that, the order isn't so important. But, you get into't want to miss the easy fixes before you start testing wiring.
If there is anything that you would like to minimal brain damage, please leave a scuttlebutt below. Good luck!!
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Source: https://www.700r4transmissionhq.com/mercury-mountaineer-radiator-fan-not-working/
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