Fan Clutch Problem??
#1
Fan Clutch Problem??
I think I have a fan clutch problem.
I think everyone knows what a fan sounds like on those really cold mornings. That load roar sounds that increases with engine RPM but typically goes away after a minute.. Well my '98 4.6 f-150 has been doing that pretty much none stop. IE the clutch for the fan is engaged all the time. IT has been fairly cold, hovering just above or below freezing, except for last week, whic hgot into the 60's on one day, yet it still did it.
Do I need to replace the Fan Clutch? Is there something else I can do?
Thanks in advance..
I think everyone knows what a fan sounds like on those really cold mornings. That load roar sounds that increases with engine RPM but typically goes away after a minute.. Well my '98 4.6 f-150 has been doing that pretty much none stop. IE the clutch for the fan is engaged all the time. IT has been fairly cold, hovering just above or below freezing, except for last week, whic hgot into the 60's on one day, yet it still did it.
Do I need to replace the Fan Clutch? Is there something else I can do?
Thanks in advance..
#2
Join Date: Feb 2008
Location: Calgary, Alberta Canada
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With the engine off. You should be able to turn it by hand. It should be slightly stiff and have no side to side play. If you can't turn it by hand with the engine off or it has excessive play it is toast.
You can switch to a flex fan (I prefer a clutch fan to this option) or you can switch to electric fans (I have them and they have not been as reliable as a clutch fan but I like them).
You can switch to a flex fan (I prefer a clutch fan to this option) or you can switch to electric fans (I have them and they have not been as reliable as a clutch fan but I like them).
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#13
Join Date: Feb 2008
Location: Calgary, Alberta Canada
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Just as a heads up, it has been my experience that aftermarket fan clutches suck. I tried several brands on another truck I had and it ran hot until I went to a different mechanical fan set up. I could not afford the factory fan clutch at the time as it was 10 times the aftermarket price. If you go with an aftermarket one and your truck runs hot you will know why.
Last edited by grizzstang; 01-05-2012 at 02:14 PM.
#14
Just as a heads up, it has been my experience that aftermarket fan clutches suck. I tried several brands on another truck I had and it ran hot until I went to a different mechanical fan set up. I could not afford the factory fan clutch at the time as it was 10 times the aftermarket price. If you go with an aftermarket one and your truck runs hot you will know why.
#15