Fan
Thread Starter
|
New User
Joined: Jan 2006
Posts: 13
Likes: 0
Fan
Hi , I have a 94 explorer with the 4.0 V6 I just installed a clutch on my fan and now when I accelarate all I here is the fan untill it heats up the fan noise will go away but before I installed the cutch it didnt do it at all but I know its apposed to make the noise but I was wanting to know if theres away to make that noise go away and still not overheat because I want to here the engine not the fan. THANKS. Adam
Posting Guru
Joined: May 2002
Posts: 1,574
Likes: 1
From: Phoenix
No dial, it sounds backwards to me. When it's cold you hear fan noise? When it's hot the clutch is suppose to lock up for more cooling - that's when it should sound like a wind tunnel howling. Sounds like a defective cluthc to me.
Hey, how did the fan look? I replaced mine a few months ago because it had cracks all over it and was ready to explode. The new one now has already started to crack. Was thinking of bringing it back for warranty but if they all do this what's the point?
Hey, how did the fan look? I replaced mine a few months ago because it had cracks all over it and was ready to explode. The new one now has already started to crack. Was thinking of bringing it back for warranty but if they all do this what's the point?
Elder User
Joined: Feb 2004
Posts: 811
Likes: 0
It all depends upon how cold it is. when you see below freezing temps, the fan will actually roar until it does warm up a little. It has to do with the fluid inside of the fan clutch. It should quiet down after a little bit and when it gets hot, should come in again, it should vary, but not roar constantly.
Elder User
Joined: Aug 2001
Posts: 942
Likes: 0
From: South Texas
No, that is how they are in reality. When cold, the fluid in the clutch is not as viscous to flow as when warmed up. As such, when a cold engine is first started and accelerated, the clutch will cause the fan to spin sufficiently fast to cause the roaring sound. In a defective clutch, this roar will not be as apparent. Once the clutch heats up sufficiently, then the temp sensing spring will start to do it's job of regulating the energy transfer. If it is working properly, the hotter the air temp, the more energy is transfered between the input shaft and the fan (to a point).
I have been there with this one. My 91 had a heating problem at idle when the outside temp was 90+ degrees and A/C on (such as one would encounter at a stop light). I went over everything imaginable, the finally changed the clutch and all was fine. After changing it, I noticed a return of that infamous cold state roar the vehicle had when it was new, but had gradually dimished over time, as had my perception of it.
Dialtone
I have been there with this one. My 91 had a heating problem at idle when the outside temp was 90+ degrees and A/C on (such as one would encounter at a stop light). I went over everything imaginable, the finally changed the clutch and all was fine. After changing it, I noticed a return of that infamous cold state roar the vehicle had when it was new, but had gradually dimished over time, as had my perception of it.
Dialtone
Elder User
Joined: Aug 2001
Posts: 942
Likes: 0
From: South Texas
I understand that. I live in deep south Texas, and depending on the outside temp, the roar may or may not be annoyingly perceptable. However, on those rare occasions when it gets in the sub 70's, I start to be aware of it more than otherwise.
Dialtone
Dialtone
