Originally Posted by packyoc
I have an '02 f-250 with 7.3 and a 5 speed. When I start the truck to warm up it won't go into the high idle mode. I have replaced the clutch interlock switch or neutral safety switch (whatever it's called) and now cruise control works so I know that's good. Also the brake turns cruise off so that switch is good too. Any other ideas?
It has to be cooler than something like 40*, the parking brake has to be on, and you have to be sitting still w/out touchign the pedals for something like 7 minutes or 10 minutes. the high idle isn't nearly as high as a high-idle chip would say.