Ronnie I was also reading in chapter 6E3-B-5, page 60 under cut out, misses, that a misfire could be caused by a misaligned crank sensor or a bent vane on the interrupter. Like I said, I don't think the tech did a very good job of checking for clearences. He said he replaced the replacement sensor after he heard the vanes hitting it. I wonder if the tech actually did or was just telling me he did. He also ordered two balancers from two different manufactures and said they were bent more then the orginal one, So he reinstalled the orginal balancer. One was a dorman and can't remember what brand the 2nd one was. I found a GM balancer at a local buick dealer but they want 265 bucks for it. I was tempted to buy it but am spending to much money on this car. wondering if I should buy it and also another crank sensor?