Maxxforce 13 Engine Fan Conversion

Wow i never knew. Good luck with that mess. I don't mean oil mess, i am thinking MAX FARCE.

 

I have a prostar that the fan never turns off any suggestions its electric and Rush says there is no solenoid it has power to the plug (5 prong) and gives a code
spn 647
oc 126
fmi3
sa 0
pin N/A

 

There are some voltage checks at the plug, if they are inspec, you replace the fan clutch.

 

Any idea were to find what voltage should be were? One had 24 other were 10-12

 

This is for 2010+ Maxxforce series.

Engine side of the harness
Pin 2 is 5 volt reference
Pin 3 is 12 volts
Pin 4 is ground.
Pin 1 and 5 are just signals.

Fan hub side of the connector
Check resistance between 1 and 3. Spec is 6-16 ohms. If open or shorted, replace fan clutch
Check resistance between 2 and 5. Spec is 2500-4000 ohms, if not, replace fan clutch.

 

Checked the volts I do get 5 and 12 on engine side
On fan plug
Between 1-3 there is 8ohms
Between 2-5 0ohms
I ordered a new fan clutch from Fleet Pride 950 bucks. It looks like you just unscrew the big bolt counter clock wise am I correct or is there more to it that this?

 

That's it!