When does the radiator fan turn on in a jeep?
The radiator fan only turns on once the temperature reaches a certain temperature I believe its about half. But on highway speeds it should run very cool. Your electric fan WILL turn on with your A/C switched on, I was 100% certain it did BEFORE I went out to test it simply so I could say I tested it.
Where is the fan on a Jeep Grand Cherokee?
Unplug the electrical connector running to the fan motor, which is in the middle on the rear of the fan shroud. Attach a fused jumper wire to the terminal on the cooling fan that is more exposed after unplugging the electrical connector.
How can I test if my engine cooling fan is working?
That’s why you will need to test it. Unplug the fan connector closest to the fan. Make up some jumper cables. Then connect them directly, from the battery to the fan motor, to see if it spins. Consequently, if it does not spin it is blown.
What to do if your radiator fan is not working?
No the AC will turn the radiator fan on to pull air across the condensor. Your going to need to check for power at the fan, the fan can still be failed and spin just fine by hand, considering you dont have high or low I would lean towards a fan or fan connector concern.
Why is the radiator fan not working on my Jeep Liberty?
There are many reasons why your Jeep Liberty’s radiator fan is not working. Of all the ones listed above, start with the coolant level, then check the fuse. After that, the order isn’t so important. But, you don’t want to miss the easy fixes before you start testing wiring.
How to troubleshoot a jeep PWM fan relay test?
Radiator Fan Motor Circuit Wiring Diagram (1999-2003 4.0L Jeep Grand Cherokee). TIP 1: The way I’ve designed the Jeep PWM fan relay test, you’ll need a scan tool that can read live data (not a code reader), since you’ll need to keep an eye on the engine’s coolant temperature with it.
What kind of fan does a Jeep Grand Cherokee have?
APPLIES TO: This tutorial applies to the following vehicles: 1999, 2000, 2001, 2002, 2003 4.0L Jeep Grand Cherokee. Radiator Fan Motor Circuit Wiring Diagram (1999-2003 4.0L Jeep Grand Cherokee).
How to test / check a radiator fan?
HOW TO TEST/CHECK A RADIATOR FAN. Bypass coolant temp sensor, relay and computer If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.
Why is the radiator not working on my Jeep Liberty?
If the radiator fan is not working, it’s a serious problem. Just because the radiator fan is not on does not mean that it is not working. They are designed to only run when needed. If your Liberty is running hot, and the fan is not running we’ve laid out the most common causes of this issue below.
What are the signs of a bad cooling fan?
Common signs include the engine running hot and cooling fans either not functioning or running all the time. 1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
Why is my Jeep Grand Cherokee fan not working?
If the fan comes on you know the fault is before, if the fan doesnt come on you know its after, in that circuit or the fan itself. 2005 Jeep Grand Cherokee – Under the knife getting a complete overhaul. So It ended up being the fan motor.
The radiator fan only turns on once the temperature reaches a certain temperature I believe its about half. But on highway speeds it should run very cool. Your electric fan WILL turn on with your A/C switched on, I was 100% certain it did BEFORE I went out to test it simply so I could say I tested it.
No the AC will turn the radiator fan on to pull air across the condensor. Your going to need to check for power at the fan, the fan can still be failed and spin just fine by hand, considering you dont have high or low I would lean towards a fan or fan connector concern.
If the fan comes on you know the fault is before, if the fan doesnt come on you know its after, in that circuit or the fan itself. 2005 Jeep Grand Cherokee – Under the knife getting a complete overhaul. So It ended up being the fan motor.
Where does the radiator fan go when its hot?
Having said that Matt, as I already suggested, when its hot out I run right at the middle hash mark, when its cool I run just mm or 2 below, with a known fully functional fan. It has done this for the 1.5 years I have had it, first noticed while I was towing and it freaked me out for a second but it has NEVER gone above the 1/2 hash mark.
What are the symptoms of a bad cooling fan relay?
1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
Why is my Jeep running hot while sitting still?
If your Jeep is running hot while sitting still your fan must be near non-functional. I will see if I can locate the operation explanation for the fan… Sounds like maybe a plugged rad or thermostat. These jeeps tend to run a bit hotter to begin with so I put a 180 degree t-stat in mine when I was chasing my cooling issues recently.
Why is the fan not working on my Jeep Liberty?
If your Liberty is running hot, and the fan is not running we’ve laid out the most common causes of this issue below. There are a few simple reasons that the fan would not be cycling on.
How do you know if a car fan is faulty?
If the fan comes on you know the fault is before, if the fan doesnt come on you know its after, in that circuit or the fan itself. So It ended up being the fan motor. When the car was running I would hit the motor with a mallet and I would get it to kick on for a bit and then it would give out until I hit it again.