Our 2018 Pacifica after only 77K rough miles has a blown gasket and a misfire in cylinder 3. The safety concern is that my family bought this van and are the original owner with the safety standards in mind. We have a 6 year old and a 3 year old. we have had this van since our first born was born. a possible blown engine is a safety issue and wouldn’t expect this with such low miles. Vehicle was inspected by the dealer and coolant was found in cylinder 3. the only indication that we had got was the check engine light coming on and then after we made sure the gas cap was on, we ran some fuel cleaner to see if it was a fuel injector issue and the light went away. when my wife used the key fab to start the vehicle, it wouldn’t start and the engine light appeared. we took it to the dealer at that point once we had autozone scan the codes. we then learned it could be a gasket or needing plugs and wires replaced. Dealer reviewed and used a camera to see that there was coolant leak. this issue continues to impact many of these vehicles and nothing is being done.