Before I took delivery of my 17 SD I had the service department activate the High Idle with my Upfitter Switch. I ask for an idle around 1200 rpms. I have 1600 rpms and would like lower this. I have new resistors but not sure where the one the dealer would have placed what they used. Can anyone assist me in where this Service installed resistor is so I can replace it? Thanks to everyone on this forum. I have learned so much about my new SD!

 

The wiring for this is in the R/F kick panel so that's where you should find it.

 

Everything you need to know
https://www.fleet.ford.com/truckbbas/non-html/Q-256.pdf

 

Please post pictures to see exact location!

 

If you open the link I posted right above your post...you will see the exact location in the pictures

 

What 2 wires you connect the resistor?

 

Pin 10 and 9.
Depends if you have a gasser or a diesel
If you're having trouble reading that link, I don't think this mod is for you.

 

LOL, I am a Airplane mechanic, and sometimes what the engineer write on publications/maintenance manuals is not what the technician see in real life, the experience of the tech is of great value, I just don't want to encounter any problems when I start this mod, just want to be ready.