BC52, That's what has me puzzled. Truck is in the hands of my nephew now and he has complained about it missing, bucking until you put your foot into it with engine warmed up. He filled it with gas several days ago and noticed that the after market keyed gas cap was not being turned completely clockwise. He did so and truck ran fine. He is coveniced (not me) that the gas cap was not letting the tank vent thus causing the problem. That's why I ask such a strange question to start with.
