I would say you have a stuck injector more than likelycritterair2":mn85yg06 said:surprisinly enough, doesn't seem to be any water in the oil. ran er for about four or five mins. still have the tat sound also some type of squeak, thought it might be water pump but its not. Took out the oil dipstick, had the white smoke coming out of it. gotta be something internal, thank goodness its not our main tractor, but, looks like its to our dealer for it.