Difference in fan clutch????

[MEXEXP]

I just installed an automatic transmission radiator on my explorer, and it's a manual transmission, I am noticing a sound in the fan like it's humming or making high pitch sound, the difference in the radiator depth is about 1 inch, I noticed that they make a different fan clutch for the automatic and the manual, what's the difference between the 2 and do I have to change it to an automatic transmission fan clutch? or what do you guys think?

 

[aldive]

How much space do you have between the fan and the radiator?

 

[Maniak]

If you have a newer fan clutch, you will hear the fan more. If the fan clutch is a HD fan clutch you will really hear it.

The sound of the engine fan on our X will actually drown out the sound of the exhaust.

BUT.. the truck doesn't get warm, even when towing @ 3000 rpms up hill in 110F.. I really like my new fan clutch..

~Mark

 

[MEXEXP]

Aldive the space between the fan and radiator is less than an inch, and the radiator shop checked the clutch and he said it was o.k.

So do I go and buy a fan clutch for an automatic if the space of the radiator-fan is less or what do you recommend? It isn't heating up or anything but I'm concerned on the sound it makes.

 

[Maniak]

Whistleing/whining type sound from the fan is normal. It can be more pronounced with new or HD fan clutches that make the fan spin more.

Before I replaced my fan clutch I still had my factory 1992 Fan clutch with 275k miles on it. I never heard the fan, but it finally started to heat up.

I heard another X with a standard fan clutch (not hd) and I could barely hear the fan, but with our HD clutch I really hear the sound.

Now if all you did was change the radiator only, and not the fan clutch, then I have no idea why you are hearing the noise now and not before other than you now have air moving in a different path (e.g. you now have more or less distance between the fan and the clutch). If there was a problem (fan hitting the radiator) you would know it...

~Mark

 

[Carl D.]

My NAPA Fan Clutch (3 fan clutches) made a high pitched whiney noise, switched back to Ford Fan Clutch and runs quiet again.