2018 Chrysler Pacifica · symptom sheet
Engine misfire
- 84owner reports
- 72,000median miles
- $4,600median quote
- 0involved a crash
Newest report Sep 5, 2026 · checked Oct 2, 2026
84 of the 172 reports of misfire on the 2018 Pacifica describe misfire.
Part of Check engine light or misfire (172 reports)
Tick what matches of 84 reports
Misfire on other Pacifica years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2019, 2020, 2021, 2022, 2023, 2026.
What got replaced
Owners who name the part that was replaced mention the spark plugs (16 reports), the ignition coils (14 reports) and the injectors (3 reports).
Recalls and investigations
5 recalls on the engine cover the 2018 model year. A recall on the same system isn't always the same failure, so read the defect text.
An internal transmission wiring connector may short circuit, resulting in an unexpected engine shutdown.
A loose battery ground connection may result in an intermittent loss of power steering assist and/or a stall.
The powertrain control module may be equipped with a voltage regulator chip in the circuit board that may fail, causing a stall or a no start condition.
The Manual Park Release (MPR) plug may be removed without a tool. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 114, "Theft Protection."
These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging.
All 12 recalls on the 2018 Chrysler Pacifica, with the owner complaints on each recalled system
NHTSA investigations into the engine on the Pacifica
Loss of motive power due to an internal wiring connector short.. Open.
Ignition-off high voltage battery fire (remedy effectiveness of recall 22v-077). Open, led to recall 26V-362.
Stall/loss of motive power. Closed mar 1, 2018, led to recall 18V-049.
Engine compartment fire. Closed apr 15, 2009.
Engine stalling. Closed nov 29, 2006, led to recall 06V-432.
Fuel tank punctures. Closed oct 11, 2007.
Engine stalling. Closed jun 22, 2006.
Fuel tank punctures. Closed jun 15, 2006.
What owners paid
18 of the 84 reports quote a price. Each dot is one quote. The middle half runs $1,700 to $6,200.
When it happens
The middle half of failures fell between 59,300 and 85,000 miles, from the 42 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 7 service bulletins or notices for the 2018 Chrysler Pacifica that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Misfire Diagnostic Trouble Codes (DTCs), Rough Idle, Valvetrain Noise Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0301 - Cylinder 1 ...
3.6L PSU Long Block Misfire DTC codes and/or rough idle and/or valvetrain noise. Refer to SOL # S2509000004. It is also important to confirm that the vehicle being repaired has the latest calibration/software update for oil pump operation mode (high pressure ...
Misfire DTCs, Rough Idle, Valvetrain Noise
3.6L PSU Long Block Misfire DTC codes and/or rough idle and/or valvetrain noise. These conditions may be related to worn intake camshaft high lift lobe(s), and intake rocker arm(s) high lift slider. High mileage failure (10,000-60,000 miles). 1.
3 more on the 2018 Chrysler Pacifica page.
What owners wrote
“Head gasket needing replacement due to cylinder 5 misfire at 7 years/55,000 miles. This appears to be a defect in the engine for this year and 2019 year. I am willing to be a named defendant if there is an opportunity to go after Chrysler for this as they are offering no assistance for this known defective engine.”
Filed May 30, 2025 · 55,000 miles
“Engine code misfire cylinder #3 and losing coolant. Took it to the mechanic who diagnosed it has a failed head gasket and coolant leaking into the cylinder. Vehicle had 85,000 miles at the time.”
Filed Oct 21, 2024 · 85,000 miles
“Cylinder 5 misfire confirmed coolant leak and head gasket failure by certified mechanic. 103k miles. Always maintained according to recommended schedule. Never overheated. Possible sudden engine failure is absolutely a safety concern leaving me and my family stranded. $6000 repair needed.”
Filed Aug 20, 2024 · 103,000 miles
“Coolant leaking into cylinder 4 causing a misfire and engine overheating resulting in blown head gasket. Vehicle had only 50K miles at the time; however problem was not diagnosed until just after 5 year mark (powertrain warranty expiration).”
Filed Oct 27, 2023 · 50,000 miles
Should you keep driving it?
This page can't tell you that. 0 of 84 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Which lights mean pull over now? Warning lights by color and urgency
Other problems on this car
- Engine stalls or loses power while driving 221 reports
- Engine overheats or leaks coolant 160 reports
- Engine failure, knocking or rod bearing 96 reports
- Battery dies or the car will not start 95 reports
- Power steering cuts out or goes heavy 73 reports
- Steering sticks, feels notchy or jerks 71 reports
- Infotainment, screen or backup camera fails 69 reports
- Hybrid or EV system warning, loss of power 39 reports
- Auto start-stop will not restart the engine 39 reports
- Transmission shudders, slips or shifts hard 38 reports
- Traction control or StabiliTrak light comes on 37 reports
- Brakes grind, pulse or wear early 31 reports
- Multiple warning lights come on at once 30 reports