2018 Chrysler Pacifica engine problems
373 owner complaints filed with NHTSA name the engine on the 2018 Chrysler Pacifica — 43% of all complaints for this model year.
What owners report
“We had to replace both head gaskets last July with only 70,000 miles on the vehicle. The repair cost was $4,600.00. This August, we started experiencing coolant leaks again. We discovered the cylinder heads are warped now. This was checked last year and it was not the main issue then. It is…”
filed Sep 11, 2026
“The head gasket failed at 89,000 miles. The engine gave P0305 Cylinder 5 misfire codes and would run rough causing difficult to drive in standard traffic flow. There are borescope pictures of coolant in cylinder 5. We stopped using the vehicle until the repair can be completed. This appear to be a…”
filed Sep 5, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Hose and tube - egr coolant
113280 · Service Bulletin/Repair Instructions · issued Jul 6, 2026
Engine problems in other Pacifica years
| Year | Reports | Share |
|---|---|---|
| 2025 Pacifica | 5 | 18% |
| 2024 Pacifica | 8 | 19% |
| 2023 Pacifica | 47 | 31% |
| 2022 Pacifica | 68 | 33% |
| 2021 Pacifica | 140 | 38% |
| 2020 Pacifica | 52 | 31% |
| 2019 Pacifica | 81 | 26% |
| 2017 Pacifica | 522 | 34% |
| 2008 Pacifica | 21 | 21% |
| 2007 Pacifica | 76 | 23% |
| 2006 Pacifica | 146 | 20% |
| 2005 Pacifica | 224 | 18% |
Other reported problem areas on the 2018 Chrysler Pacifica
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.