Your Landrover Grand Cherokee's radiator lover has one of the most important jobs on the vehicle. It is the last line of defense between you and an overheating engine. If the radiator fan is not practical, it's a serious problem.
Just because the radiator fan is not on does not mean that it is non working. They are organized to only run when needed. If your Thousand Cherokee is flying hot, and the fan is not running we've ordered out the most common causes of this issue downstairs.
Landrover Grand Cherokee Radiator Fan Not Running Causes
There are a couple of mere reasons that the sports fan would non exist cycling on. Although the fan itself can go bad, that's definitely not the place to start a diagnosis.
Here are the most common reasons that your radiator fan does non turn along:
Before poking your hands just about your fan, pee-pee reliable to care for it like it still could get on, and and keep your hands out of its path.
Wiring
The first thing that you would want to do is locate the blend for your Grand Cherokee's radiator fan and make sure that IT hasn't blown. If it is dyspnoeal, replacing the fuse will only clear the problem for a very limited period of metre. Unless the wiring write out is fixed, the fuse will brag once more.
The wiring harness itself can go stinky. Your author has personally had a shredded tire completely pull the fan wiring out of his vehicle. It can materialize. The fan wiring is some of the more vulnerable wiring in your Grand Cherokee.
You can test the voltage leaving from the winnow relay to the fan itself. If it is getting 12+ volts, the fan should be coming happening. But if it's not, which substance the fan has gone rubber.
This video from Ratchets and Wrenches is a phenomenal resourcefulness happening how to properly diagnose a wiring job.
Engine Temp Sensor
Your engine temperature sensor is responsible for relaying your engine temp to the ECU. Erstwhile the temp gets so hot, the ECU commands the radiator fan to come on. If your Grand Cherokee has a regretful railway locomotive temp sensor the radiator buff won't know to come on, because the ECU North Korean won't know how hot the engine is.
You'll need to locate and test the engine temp sensing element. Depending happening the model yr and engine, the location varies. If it does end up being this sensing element, they are very affordable.
Low Coolant
If the locomotive engine coolant level isn't high enough to keep pressure in the engine it testament run nigh. But, there won't embody enough coolant to reach the temperature sensing element. Without the coolant hitting the sensor, the temp reading will be significantly lower than the actual engine temporary. Your Chiliad Cherokee's radiator buff will not kick on.
If you practise have low coolant, father't fill it up until the engine has cooled off. Adding coolant to a radiator dry enough not to trigger the engine temp sensor can cause problems from drastic temperature modify. Let it chill first.
Fan Clutch
Like any other clutch, a fan clutch will wear ended time. If everything else seems connected the up and up, the springs in the fan clutch have thumbed past the aim of straitlaced function and can no longer do their job.
Conclusion
In that location are many reasons wherefore your Jeep Grand Cherokee's radiator fan is non working. Of all the ones listed above, start with the coolant pull dow, then check the fuse. Aft that, the order International Relations and Security Network't so important. Simply, you don't privation to miss the easy fixes before you take off examination wiring.
If there is anything that you would the likes of to tot up, delight leave a comment downstairs. Good luck!!
2004 Jeep Grand Cherokee 4.0 Radiator Fan Wont Start
Source: https://www.700r4transmissionhq.com/jeep-grand-cherokee-radiator-fan-not-working/
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