6.4 clutch fan don't shut off????

[Commandos888]

:shrug: Anyone had a problem with the cooling fan staying on after EGR delete??
Now i know this is monitored by the PCM when in closed loop.Is the Pcm not seeing a sensor? making it increase damand for fan speed.Or is the fan just going bad.:cursing:

 

[Beans71086]

Any codes? Also might want to move this to the 6.4 tech thread.

 

[78f100]

Fuel temp sensor, and trans temp sensor will cause that also. Make sure all your sensors got plugged back in.

 

[Commandos888]

Got it!!!

:ford: ok...Found ECT sensor way out of spec. found coolant temp pid was at 195. how can that be when the you first start the engine cold??? no fault code, fan was on,replace ECT sensor fan no longer stays on. Thank you guy's for all the input! thank you very much!