2015 Jeep Wrangler · symptom sheet
Check engine light or misfire
- 41owner reports
- 66,630median miles
- $3,392median quote
- 0involved a crash
Newest report Sep 13, 2026 · checked Oct 2, 2026
199 of the 471 complaints on this car are about the engine. 41 of those describe misfire.
Tick what matches of 41 reports
Misfire on other Wrangler 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: 2016, 2017, 2020, 2023, 2025, 2026.
What this problem usually is
These reports start with the check engine light. Many describe the engine running rough or shaking at idle, a P0300-series code, or a catalytic converter code. A worrying number say the light was flashing. Owners often list ignition coils or spark plugs already replaced, and the light coming back afterward.
What got replaced
Owners who name the part that was replaced mention the ignition coils (5 reports), the sensor (5 reports) and the injectors (3 reports).
Recalls and investigations
No recall on the engine covers the 2015 model year as of Oct 2, 2026.
NHTSA investigations into the engine on the Wrangler
Instrument panel cluster (ipc) failure. Open.
Loss of motive power. Open.
High pressure fuel pump failure. Open, led to recall 24V-957.
Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.
Totally integrated power module failure. Closed jul 24, 2015.
Skid plate debris fires. Closed aug 7, 2012, led to recall 12V-216.
Fuel spill during refueling. Closed feb 16, 2011.
Engine stalling & electric power loss. Closed aug 2, 2007, led to recall 07V-291.
Instrument panel ground screw. Closed may 30, 2000, led to recall 99V-117.
Fuel leakage. Closed jun 30, 1998, led to recall 94V-106.
None of these investigations covers the 2015 model year.
What owners paid
5 of the 41 reports quote a price. Each dot is one quote. The middle half runs $2,600 to $4,850.
When it happens
The middle half of failures fell between 44,465 and 86,096 miles, from the 26 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 5 service bulletins or notices for the 2015 Jeep Wrangler 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.
wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes P0407 ? EGR Sensor B Circuit Low, or P0408 ? EGR Sensor B Circuit High Set
Oil Pump Assembly If error code P06DD present on any Pentastar V6 application, please inspect oil pump for relief valve failure. See photo attached.
Oxygen Sensor Before replacing the Upstream (1/1) O2 Sensor on a 2.4L MK due to a P0131 fault code, please contact Vijay Thiruvenkatachary at cell (906) 281-8495.~ Before replacing the Left Downstream (2/2) O2 Sensor on a 3.6L JK due to a P0157 fault code, ...
1 more on the 2015 Jeep Wrangler page.
What owners wrote
“2015 Jeep Wrangler with 3.6l Pentastar Engine having repeated engine failures associated with the use of possibly defective repair parts / defective cylinder head repairs / recurring cylinder 6 misfire alerts..”
Filed Nov 4, 2025
“2015 original owner, developed misfire cylinder #4 P0304, replaced coils, plugs, injectors, harness on that side. Misfire still present, noted others have reported issues with cylinder head (valves, cams, rockers). Engine has a slight tick, found no recalls on NHTSA site except for 2014 versions with same engine for this exact issue.”
Filed Sep 30, 2024
“The engine has a known failure causing a cylinder misfire that is resolved by replacing the cylinder heads. This is a known issue to FCA and caused an extension of the powertrain warranty for the 2010-2014 models but does not cover later engines, that are still experiencing the same issues. The covered years needs to be extended to 2018 or beyond and all out-of-pocket repair costs should be refunded to the consumer.”
Filed Sep 10, 2024
“Check engine light came on for misfire in Cylinder 4. Jeep lost power when on the road”
Filed May 2, 2024
Should you keep driving it?
This page can't tell you that. 0 of 41 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
- Brakes grind, pulse or wear early 129 reports
- Airbag warning light or recall 73 reports
- Engine stalls or loses power while driving 33 reports
- Vehicle fire 27 reports