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Unread 11-10-2013, 08:21 PM   #1
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5.9 cooling fan

Hello, my electric cooling fan continued to run tonight with the engine off until i pulled the 60 amp fuse. Any idea whats going on?

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Unread 11-10-2013, 08:46 PM   #2
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Well it was a relay, guessing not a large cost for a new one.
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Unread 11-11-2013, 01:57 AM   #3
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On a side note, if the fan fails, you can get a Ford motor + pigtail harness for the fan assembly. New 5.9 fans are hard to come by, factory does not sell just the motor, and a new fan assembly these usually costs in the region of 700-800$. New Ford motor (which is the exact same unit, with slightly different connector) with the pigtail is around 100$ shipped.

This just to let you know when the fan fails. It's usually the slow speed that dies first.

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Unread 11-11-2013, 10:52 AM   #4
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Mine runs for a certain time after I turn off the truck. Let it run and if it doesn't kick off after 10 minutes or so you know you have a problem. As a matter of fact, with the car now off and cool, put the fuse back in. If it kicks on, chances are your relay is shot.
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Unread 11-12-2013, 09:43 AM   #5
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Well im sure it is the relay (for now). I tapped on the relay and the fan shut down immediately. Thanks for the info on the Ford fan, likely will need that down the road.
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Unread 11-12-2013, 11:49 AM   #6
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The relays are about $50 each new.
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