I have driven quite a few diesel pickups, ranging from old to new, from 6.9 to a new Cummins, An OBS Ford with a Powerstroke is one of them that I haven't. The truck I recently purchased (which wasn't supposed to run but does) seems to have a considerable delay from foot pedal to actual throttle response and the power isn't exactly what I expected. However I have never driven one to compare it to and never experienced this kind of delay in any other diesel pickup I have ever driven. Is this normal or could I have other problems? The previous owner of this is a long time family friend who sold it to me after it was diagnosed to be a failed hpop. By who or what shop I have no idea. After (and please save the pep talk, relay for for the glow plugs is disconnected and fully aware of the dangers of this) a VERY conservative puff of either it fired right up and continued to start after reaching operating temperature. The truck has 213,000 miles on it, It has been very well maintained with proof of all oil changes and services since new, and aside from brakes, belts and hoses, has been virtually untouched. It still has the original clutch! I am going to be ordering new injector o-rings after reading the info on this site, but I am not sure if that could cause this problem. Have talked to previous owner, he has never had them replaced.I would just like to know if this is at all normal and if not what I should do to cure this problem.