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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van SPONSORED BY:

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Old 05-20-2013, 11:47 PM
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Should my fan spin @400 RPM when engine is warming up?

I have been searching but can't find the answer (maybe I'm search challenged). I think it is normal but I have read about wire chaffing, short circuits and I'm kind of paranoid. I had a week thermostat and temperature stayed at about 180 degrees (unless I was towing) and the fan was always running around 375 to 450 RPMs and 0 on the fan DC% when driving around town unloaded. I thought that was odd so I'm asking the great FTE comunity for some help.

I never checked the fan speed or fan DC% when towing so I have no idea what the max. RPMs the fan can spin when towing. What is the max RPM's and fan DC%'s? I'm using a Dashboss to monitor my truck.

Thanks Eric
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Old 05-21-2013, 12:18 AM
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not too sure on ur condition but i never monitor my fan. i only know if it's blowing or not. sorry! but at least i'll bump u to the top. lol.
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Old 05-21-2013, 01:58 AM
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MARK HODGES r0bbinthah00d
Mine runs 400ish normal driving and temps, mine hits about 1600 at ECT of 207.
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Old 05-21-2013, 02:31 AM
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I've had the same fan speed while driving until it reaches temp
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Old 05-21-2013, 11:08 AM
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Thanks guys for the information I guess I was just a little paranoid.
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Old 05-21-2013, 11:31 AM
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I posted a thread last year with a couple pdf files with a ton of readings while I was towing.

The one on the first page is highway and mountain towing. The second one on page 3 has readings while driving in the city, while towing.

These will give you an idea of fan speeds.

http://www.ford-trucks.com/forums/11...an-speeds.html
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Old 05-21-2013, 02:10 PM
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Quote:
Originally Posted by amdriven2liv View Post
I posted a thread last year with a couple pdf files with a ton of readings while I was towing.

The one on the first page is highway and mountain towing. The second one on page 3 has readings while driving in the city, while towing.

These will give you an idea of fan speeds.

http://www.ford-trucks.com/forums/11...an-speeds.html
Thanks for the link! Page 2 has the city driving. Good Info! I didn't think that the fan should be spinning at 400 RPM when the motor is warming up but I guess that's how it works.
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Old 05-21-2013, 02:10 PM
 
 
 
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