Code P0306 Cylinder 6 Misfire Detected

No the oil pan and transfer case were not removed, however they can see into the bottom end of the engine. They said mine looked brand new aswell as the upper minus the fact that the valve guides were dry and cracked casuing the oil to get into the intake runners making them black. Here are some pics of the head, engine minus heads and timing cover, and dirty intake runners.

 

Pulled my engine today, glad I did beyond the fact that it makes it quite easy to get all the necessary parts off of replace the head gasket. I found the flex plate completely cracked at every torque converter bolt and on its last web in the center, Just think how pissed I would be if I would have got the truck running again just to have the flywheel (flex plate) come apart and tare up the bell housing. No surprise this truck has been a maintenance nightmare. All Toyota says after they note the issue in my file is "can I help you in any other way today Mr Lyman" Although I do not think it makes much difference, perhaps I will stick to American trucks in the future.