Fan clutch over ride switch

[boo boo]

I'm trying to install a coolant fan over ride switch so I can keep temps lower while towing. Anyone done this on a 6.4? All I found was 6.0 information. There has to be way to do this.

 

[FordTechChase]

Killing the speed sensor wire should do the trick. When it loses speed sensor signal it maxes out the fan

 

[boo boo]

By any chance would you know what that is or any directions.

 

[FordTechChase]

Pin 4 in the fan clutch connector is the speed sensor. Grey/yellow is the wire color. This should cut the speed sensor signal to the pcm causing it to max out the fan clutch and also set a p0528 dtc.

 

[TD-5]

This may help;

 

[boo boo]

I'm not the smartest guy and I'm going to show it right now! I have no idea what this means or what I can do to put a simple switch on the fan to turn it on when I want it. I really hate how fast the temps go up when I'm towing my trailer up hills. Deltas are good but temps rise, and I either pull over and sit, or just risk it.

 

[Powerstroke Man 6.4]

What kind of tuner do you have if any? You could have your tune writer lower the command on temp for the fan.

 

[boo boo]

Mini max with ******** tunes. Matt at ******** adjusted the settings on a new tune but I haven't installed it. Always get nervous jacking with the tune installation. I'd rather just turn on the fan when Needed or when it appears that it will get hot.

 

[Rubenk]

Think it would be useful for racing while on the return road and in the pits? I wind up hot-lapping more than i'd like at some events and it can be a struggle to get it cooled off sometimes.

 

[Powerstroke Man 6.4]

I wonder if having a manual switch, will kick the CEL on when the switch is turned "on"? If so, I also wonder if, able to kill the codes in the tune in MCC so it doesn't kick the CEL on.

While searching this subject up, I found a mechanical fan clutch conversion on xdp.

http://www.xtremediesel.com/empire-performance-epe-fc6401-mechanical-fan-clutch-conversion-kit.aspx