Engine Cooling Fan On
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Mountain Pass
Joined: Nov 2008
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Engine Cooling Fan On
My question is, does the engine cooling fan come on all at once or a little at a time? The only time I know when it is on is when it is running full on. This happens at about 226-228 degrees F, at least that is when I can hear it from inside.
This is an 04 ex with an 03 6.0l.
Thanks for any info.
This is an 04 ex with an 03 6.0l.
Thanks for any info.
Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
It's an objective (?) thing with the fan. Using the Dash Daq to do a little monitoring, I see the fan "come on" at 196-200, but not "full on", and I never hear that. The fan speed jumps from 1/3 of engine RPM's to more than engine RPM's at idle. From what I understand, at 100% commanded on the engine fan should run about 2800 RPM's if the engine is running 2000 RPM's. That would be some serious noise. What sucks is that when I try to increase engine RPM's "manually" the engine cools off enough that the fan "disengages". That's why Ford has to actively command the fan using IDS to test for proper operation.
Posting Guru
Joined: Jan 2009
Posts: 1,321
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From: Mattawa Washington.
It's an objective (?) thing with the fan. Using the Dash Daq to do a little monitoring, I see the fan "come on" at 196-200, but not "full on", and I never hear that. The fan speed jumps from 1/3 of engine RPM's to more than engine RPM's at idle. From what I understand, at 100% commanded on the engine fan should run about 2800 RPM's if the engine is running 2000 RPM's. That would be some serious noise. What sucks is that when I try to increase engine RPM's "manually" the engine cools off enough that the fan "disengages". That's why Ford has to actively command the fan using IDS to test for proper operation.
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