6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

Loud Noise

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Old 08-31-2007, 06:01 PM
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jam105
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Loud Noise

I towed my fiver 12K over 400 miles in last couple of days.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>

At time I would hear a loud noise like a fan running....I have experienced regen during idle but does it run during hwy driving if so does it make that same type noise. I have noticed it even when it was cold and just starting out of drive... Let off gas pedal and it will stop...Sometimes will start again as you press the pedal and sometimes it will not...There is no loss of power during this noise. Just real loud in cabin.....<o></o>
 
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Old 08-31-2007, 09:05 PM
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That's the engine fan kickin on. Mine does it too even when the engine is cold.
 
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Old 09-01-2007, 12:32 PM
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Yep, it's the fan clutch engaging. It scared the heck out of my wife the first time she heard it.
 
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Old 09-04-2007, 07:37 PM
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Thanks....Wondered if it was the fan...Sure makes a lot of racket....
 




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