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  #1  
Old 07-13-2012, 05:01 AM
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cooling fan stuck on

Cooling fan is stuck on and wont turn off. I used AE to try turning off and wont turn off. Its even on when i start cold. Do i need a new fan clutch? Any jelp would be great!
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Old 07-13-2012, 07:21 AM
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I couldnt say but I think my fan is usually on too it just kicks into high gear when the ect reaches 220* are you sure it is suppose to compleatly shut off?
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Old 07-13-2012, 07:41 AM
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Operating range of fan

Low Idle=533
HI Idle=488
Operating range of fan=0-4000

Motor at standard temp. operating range

High idle is 2500 for this. (not high idle mod)

Ford specs.
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Old 07-13-2012, 07:51 AM
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What are you trying to say here. It shouldnt be off?
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Old 07-13-2012, 07:55 AM
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Most likely the oil temp sensor wiring pigtail. If it is open or shorted it could cause the fan clutch to lock on because it thinks oil temp is off the chart.
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Old 07-13-2012, 08:01 AM
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Well the truck sounds like a helicopter all the time. The fan sounds like the truck is hot after pulling long hard grade with heavy load all the time. The oil and coolant temp show good on AE . Its not running any different just loud wuth fan.
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Old 07-13-2012, 08:15 AM
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If the fan is "on" all the time then it may be a oil temp sensor problem.
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Old 07-13-2012, 08:17 AM
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Fans on all the time it just started yesterday oil temp is reading good on ,AE
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Old 07-13-2012, 08:18 AM
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also check the wire near the shroud to the fan .. they have had chafe issues
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Old 07-13-2012, 08:20 AM
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Will do but probably not looked quick and protective cover was still on
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