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P0483, Cooling Fan Speed

1496 Views 2 Replies 3 Participants Last post by  X513LT
I've had this code for a year and it won't go away, no check engine. Im guessing it is just a hard code, and will not go away by itself. Am i right? Truck runs fine, always has, no problems.
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Hi,
Your fan clutch is bad. I had the same problem about 2 months ago. After I replaced the fan clutch, my coolant temps dropped about 20 degrees.
 

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Your issue is similar to one I've been experiencing. For some spare time reading checkout a thread I started titled "Sudden momentary power loss". It's currently on page 5 of this forum. It's taken me over a year to find the cause; partly because it wouldn't always throw a code (never a CEL) and partly because it was difficult to duplicate the symptoms until recently. Also, responses to my inquiries on this forum were very helpful in diagnosing the problem. I take the truck in to replace the fan clutch later today and that should be the end of my problems. Hopefully, your issues will be resolved much quicker than mine.
 
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