Originally Posted by Nally7.3Powerstroke
one way would be to buy a chip for your truck with the high idle setting on it
It's a 6.0L. No "chips" for a six oh.
Originally Posted by 07lariat
I did this mod this past winter and did it ever make a difference in warming the truck up. I didn't have the upfitter switches so I bought a set off E-bay for about $160. Install took about 30 mins. I used switch #4 for the high idle, leaving 1-3 for aux lights etc.
I used this link for my install:
TikiWiki : Upfitter Switch Kit
Hope this helps.
Mine cost me about $6. A toggle switch and a couple feet of 16ga. wire with an inline fuse from the local hardware store. One end goes to the hot wire by the OBDII port, the other to the PTO wire in the bundle under the fuse panel. I mounted the switch on the side of the black plastic cover under the center of the dash directly over the tunnel on the floor.