NHTSA Complaint #11484102 — 2018 CHRYSLER PACIFICA

Van started running slightly rough in the mornings if the engine was cold. CEL eventually came on with a P0304 DTC. I replaced the igntion coils and spark plugs since the van was right at 80,000 miles. Seem to run fine for a day after, then issues came back. Took it to the dealership for more in-depth troubleshooting and repair. They failed to do anything after almost two weeks except that now my van wouldn't start. Took the van to a non-dealership affiliated repair shop and they said the starter had failed, but the engine passed the pressure check of the head. Waited almost another two weeks for a new starter, mechanic got it back together, found some coolant coming out of the exhaust manifold and recommended adding leak stop that there might be a small casting issue with the engine. They added leak stop and returned the van to me stating they think there was a small hole in the engine from casting and that coolant was getting by and causing the misfire. Subsequently, the coolant would then travel to the catalytic converter where it would burn off but caused the cat to be much hotter than normal and that was in-turn frying the starter which is pressed up right next to the cat. The van continued to run rough for a couple days before it finally wouldn't start again and now i'm having to have it towed back to the shop. I suspect the issue may a issue with a warped head or something even worse. A cursory search of both online forums and NHTSA reports that this is not a one off or new issue and only seems to be getting worse and more prolific as the average age of the fleet pushes towards 80-100K+ miles. Modern vehicles should be able to go 150-200k miles before head gasket issues become a serious concern.