Hi new member, electric fan not working, swapped relays not the problem, is there a sensor that turns the fan on, thanks Tim

 

Welcome to the site. What model is your Dodge?
FF

 

^His truck is an 04.
You might be needing a new fan. Dad's truck has the same problem, we narrowed it down to the fan, just haven't bought one yet.

Welcome to DF!

 

I know it is a 2004, so back to my original question,
FF

 

First of all which e-fan are you referring to? The one on the AC condenser or the one someone may have added behind the radiator?

If it is the AC condenser, if you turn the AC on and it doesnt come on the disconnect the electrical connector and jump 12v from the battery to it. Majority of the time it is the fan motor that dies. Most guys dont fond out until spring or summer when it starts warming up. In the Dodge Ram 3rd Gen section we have lots of threads on this and part numbers and replacement guides.

If it is a fan added behind the rad then it has to have a fan controller. This means it has a fuse and a relay. So the first thing I would do is just as above to test the fan motor first. Then you need to check the fuse, replace the relay or replace the controller. There is a heat temp sensor (probe) that normally goes between the rad fins. Normally this cannot be replaced on its own so the controller must be replaced. A hayden fan controller will run you about $40 on average from the auto parts store.

 

Hi , its a 04 Dodge Dakota Quad Cab, 4.7 , I'M Referring to the factory electric fan , puller on the motor side of the radiator, accross from the clutch Fan, it's not overheating, but I have not heard it , over winter, but on our first warm day I tried the air and I did not hear it, It's back to cold , and snow again, but I want to fix it before summer, I have had it for 4 years now it just turned 60,000 and all I have had to replace was the water pump and the heater blower motor control relay, I love the truck except for the gas mileage.

 

Well, as I said, you need to check for the fan motor working correctly so jump 12v to it and see what you get. From there you can check the fuses and coolant temp sensor.

 

I moved this thread to the second generation Dakota section,
FF

 

Well, I was going to tell you to try the AC. If that isnt working, 2 tests. 1. is to put 12V directly to the fan. 2. test the supply (plug to the fan) for 12V when you have the AC on. This should be fine without the motor running, but IDK. If your fan works, then it may be sensor etc. If not, then, its your fan obviously. ha!

 

I will test the fan with 12 volts as soon as weather permits, where is the coolent temp sensor?