Check engine light p0305 misfire cylinder 5. Found head gasket leaking coolant into cylinder.
2018 Chrysler Pacifica engine problems
moderate 175 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Owners have filed 175 engine complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Among the 12 model years of Chrysler Pacifica in our records for engine problems, this one ranks #3 by owner-complaint volume.
What owners are reporting 4 most recent
Blown head casket at only 64000 miles. Engine light on and antifreeze I’m told is leaking now. No warranty or recall with the 2018 Pacifica but there is for the same issue with the 2017.
Original code displayed was for a misfire on cylinder 5. Vehicle wouldn’t start and we had it towed to a Chrysler dealership for a diagnostic. Dealership stated it had a cracked head gasket. Based on research this is a common problem among Chrysler pacificas where it’s specifically happening on cylinder 5. Regular maintenance has been done and prior to the issue it idled roughly. The next morning…
Ticking noise began out of nowhere, 2 days later accelerated from a stop light felt a jolt and then lost power and check engine light flashing. Took to closest dealer to have looked at. Dealer determination new engine needed, or have cams, headers, rockers, and lifters repaired. Engine has 68,000 miles on it.
Common questions
How serious is the engine problem on the 2018 Chrysler Pacifica?
It's a documented issue but not catastrophic. 175 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Across the 43 complaints that reported odometer mileage, most engine failures cluster between 5,000 and 51,000 miles, with the median around 14,656. A quarter of owners report trouble before 5,000; a quarter make it past 51,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.