cooling fan stuck on

backwaterz · #1 (**permalink**) 07-13-2012, 05:01 AM

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!

**WarChild** · #2 (**permalink**) 07-13-2012, 07:21 AM

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?

**amdriven2liv** · #3 (**permalink**) 07-13-2012, 07:41 AM

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.

**WarChild** · #4 (**permalink**) 07-13-2012, 07:51 AM

What are you trying to say here. It shouldnt be off?

**a2elvis** · #5 (**permalink**) 07-13-2012, 07:55 AM

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.

backwaterz · #6 (**permalink**) 07-13-2012, 08:01 AM

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.