Done. I went to another dealership when I had continuing trouble after receiving the car back after the cylinder head replacement. The new dealership said the Valvematic (thier words) needed replaced, but Valvematic is a system, I think, not a single thing. There is a long list of parts I have. If I get 4th cylinder misfire code again I will arbitrate for replacement vehicle. That would be the fourth 4th cylinder misfire code. They have given me a free extended warranty, 125,000 miles or 8 years, which I appreciate (after I asked for it twice). That takes me to 2021, and I could probably still get a pretty penny for it if there is no more trouble. It will have pretty low miles.
Understand your loyalty. I def had bad luck with this one. Am forced to hang onto it for a while due to the money I would lose if I sold or traded right now. I've only looked at KBB. But after I've had a chance to drive my car for a little while and think about it I may see what a dealer would give me for it. I pimped my Corolla with alloy wheels, fog lights, beveled strips on the side, the door sill plates that say Corolla. And I bought the $500 interior/exterior protectant. My LE Eco Plus 4 Dr Sdn was 22,300, all said and done with taxes, delivery, et al. I would lose at least 7K today, according to KBB.