Really? Then why did I pay good money for each one to be cleaned?
The reason I ask is I've been thinking through the experience I have where about 25% of the drives I'm on, it runs rough, as if getting a slight miss. I thought maybe one cylinder is not getting as much fuel as the others on some occasions. The idle has a distinct diesel clatter, or it has a smooth diesel rhythm. Climbing a hill is either a pain on the ears, or the next day at the same speed, it is a relatively calm, vibe free experience. Even when shutting the engine off, it either clunks to a stop, or it smoothly settles to a stop. I can usually tell if it is a 'good' drive or a 'bad' drive within the first 200-300 yards, sometimes even right at start up. And once I swear I was just thinking this is a 'bad' day when I stepped on the gas and it 'cleared' to a 'good' day right then. I think it may have slightly less power on the 'bad' days, but it is hard to tell.