Hey Guys (and Gals), I have a 1984 CF Heavy Rescue that I have purchased and have a lot of family history with. My goal is to preserve it back to the way it was when I was a kid and knew the truck. I have a couple of questions for you all. When I bought the truck, it had been sitting for about 2 years. The previous owner had run it out of fuel and it stayed where it was until I bought it. We put fuel in it, and primed everything up. The truck started, but it started wide open. It has an American Bosch pump on it. I spoke with my local Bosch dealer here in Richmond and they guided me through the process of trying to unstick the fuel rack which I never could do, so I had it towed. The Bosch dealer got the fuel rack unstuck for me and got the truck running. The problem was that the truck seemed to "hunt" for an idle somewhere between 600 and 1000 RPM. This would go on until I idled the truck up to about 900 RPM, and then it would level out and idle correctly without hunting, but the idle was set too high. When I would idle it back down to the desired 600 or so RPM, the motor immediately started the hunting up and down thing again. I was told by a number of folks that the governor on the pump is bad, and as such needed to be rebuilt. I planned on pulling it off, but on a totally separate issue one day I was lubing up the accelerator pedal because it was sticking. It has a Williams air control pedal on it and when you push it down it does not come back up on its own power, and you physically have to pull the pedal back with the heel of your foot. I sprayed some PB blaster in the there and worked the pedal back and forth to try and free it up, and to some degree it worked. I didn't think anything else about it, but the next time I started the truck it ran perfect at idle. No hunting or moving up and down in RPM ranges, and everything seemed to be fine. My question is this: Is it possible that the air controller on the throttle or even the slave unit in the engine compartment could be causing the up and down seeking issue I am dealing with. I do think the valve just below the accelerator pedal is leaking some air as well. I have driven a number of these in my life and I remember the pedals immediately snapping back when you let your foot off of them, so I know something is suspect. Do you guys suspect this might be causing the engine issue and not the injection pump. I hate to pull that pump off. Can you rebuild the accelerator assembly or should I just replace it? Any thoughts would be appreciated. It seems odd that the seeking condition stopped after I worked that pedal over. Thanks so much for any feedback. Its the EMC6-285 motor. Injection pump is APE6BB11OT6980D1. The truck runs great on the road and at speed.