NHTSA Complaint #11556126 — 2018 CHRYSLER PACIFICA

oticed that the CEL had come on, and after reading the codes, I found out that there was a cylinder 5 misfire. To fix the issue, I decided to replace all the spark plugs and ignition coils, and after putting everything back together, I erased the codes. However, the following day, the same code appeared again, and I realized that the coolant level in the reservoir was low. I performed a pressure test on the system and ran it to temperature, but there were no coolant leaks. While the car was running, I observed bubbles in the reservoir, and these signs pointed towards a blown head gasket. After checking online for Pacifica common issues, I found out that head gasket failure is one of the main complaints. As a mechanic with 13 years of experience, I know that these symptoms indicate a blown head gasket. Unfortunately, due to this issue, I had to leave work twice as my wife and four kids were stranded 30 minutes away from the house. This is not acceptable, and I've never had a vehicle blow a head gasket before.