#2 cylinder misfire code P0302. A known problem with this engine. A compression test reveals a common defect with this engine
2016 Jeep Grand Cherokee: misfire or rough idle
5 of the 313 complaints about the 2016 Jeep Grand Cherokee describe misfire or rough idle.
- owner complaints
- 5
- of this car's complaints
- 2%
- recalls
- 3
Is there a fix? There are 3 recalls and 84 service bulletins for this area of the car. See below
Misfire or rough idle by model year
What owners say
The contact's son owns a 2016 Jeep Grand Cherokee. While the owner was driving at an undisclosed speed, the check engine warning light illuminated. The contact was informed that the vehicle had been running rough and idling roughly prior to the warning light becoming illuminated. The owner had taken the vehicle to a local dealer to be diagnosed. The dealer retrieved DTC: P0303 (Misfire in Cylinder #3). The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 129,045.
2016 Jeep Grand Cherokee started to have rough idle when stopped at light or parked. Turns out the VVT Solenoid (Front #2 cylinder) went bad. Poor design by Jeep/Chrysler that could cause a safety concern and even internal damage to engine. The VVT Solenoid from (Hawk Chrysler Jeep in Forest Park, IL) cost $143.00 w/o tax part #5047897AC. Part and vehicle is available for inspection at anytime. My incident occurred on Oct 1, 2023 in the middle of intersection making a left turn when I experienced rough idle. The next day the check engine light came on triggered code P0302 misfire #2 cylinder. Normal vehicle cylinder misfire would be due to bad ignition coil, plug, vacuum leak or fuel injector but not Chrysler product. That's when I noticed an abundance of Jeep Grand Cherokee owners from 2016/2017 complaining about VVT Solenoid causing misfire and rough idle. Independent repair facility confirmed VVT Solenoid was faulty and caused rough idle issue. Please open a vehicle recall for 2016 Jeep Grand Cherokee for faulty VVT Solenoid to cover owners repairs and parts to resolve this poor design by manufacturer. Thanks! [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Over a 3 year time span my 2016 Jeep Grand Cherokee has on multiple occasions had an extremely rough idle, has a hard time accelerating and car drives extremely rough and bumpy. I’ve taken it to multiple different auto shops and all they ever do is change spark plugs OR they just don’t know what’s wrong. No engine light illuminated and no codes. Spark plugs changed March 2020, august 2020, January 2021 and now January 2023 I’m having this problem again and the shop says they don’t think it’s spark plugs . I just want this resolved. This cannot be safe!
Alternator failed and passenger seat belt does not retract. Coils misfired.
Service bulletins that may apply
Related recalls
Engine and engine cooling
- What is wrong
- Chrysler (FCA US, LLC) is recalling certain 2014-2019 Ram 1500 and 2014-2020 Jeep Grand Cherokee vehicles equipped with 3.0L Diesel engines. The crankshaft position sensor tone wheel may delaminate, causing the engine to lose its ability to synchronize the fuel injector pulses and cam shaft timing, possibly resulting in an engine stall.
- Risk
- An engine stall can increase the risk of a crash.
- Remedy
- Dealers will update the powertrain control module software to maintain vehicle propulsion, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed August 3, 2023. Some owner notification letters were mailed October 31, 2023. The remaining owner notification letters will be mailed at a future date, anticipated July 2024. Owners may contact FCA US, LLC customer service at 1‑800‑853‑1403. FCA US, LLC's number for this recall is 66A. This recall is an expansion of recall 20V‑475.
Recall number 23V411000 · Recall details
Engine and engine cooling: exhaust system: emission control: gas recirculation valve (EGR valve)
- What is wrong
- Chrysler (FCA US LLC) is recalling certain 2014-2019 Jeep Grand Cherokee vehicles equipped with the 3.0L EcoDiesel engines. The Exhaust Gas Recirculation (EGR) cooler may crack and allow pre-heated vaporized coolant to enter the EGR system. This mixture may combust inside the intake manifold.
- Risk
- Combustion in the intake manifold can increase the risk of a fire.
- Remedy
- FCA US LLC will notify owners, and dealers will replace the EGR cooler, free of charge. Dealers will also inspect and, as necessary, replace the intake manifold. Parts are not currently available. Owners were mailed an interim notification on December 21, 2021. A second notification will be mailed when parts are available, currently expected to be around March 11, 2021. The recall began March 11, 2021. Owners may contact FCA US LLC customer service at 1‑800‑853‑1403. FCA US LLC's number for this recall is W79.
Recall number 20V699000 · Recall details
Engine and engine cooling: engine: diesel
- What is wrong
- Chrysler (FCA US LLC) is recalling certain 2014-2018 Ram 1500 and 2014-2016 Jeep Grand Cherokee vehicles equipped with 3.0L diesel engines. The crankshaft position sensor tone wheel may delaminate causing the engine to lose its ability to synchronize the fuel injector pulses and cam shaft timing, possibly resulting in an engine stall.
- Risk
- An engine stall can increase the risk of a crash.
- Remedy
- FCA US will notify owners, and dealers will update the powertrain control module software to maintain vehicle propulsion by reading the camshaft position signal in the event that the crankshaft position signal is lost, free of charge. Owner notification letters were mailed on May 13, 2021. Owners may contact FCA US customer service at 1‑800‑853‑2002. FCA US's number for this recall is W58.
Recall number 20V475000 · Recall details
Questions about the 2016 Jeep Grand Cherokee misfire
Is misfire or rough idle a common problem on the 2016 Jeep Grand Cherokee?
5 of 313 owner complaints about the 2016 Jeep Grand Cherokee (2%) mention misfire or rough idle. The model year with the most reports is 2018.
Is there a recall or service bulletin for this on the 2016 Jeep Grand Cherokee?
There are 3 recalls and 84 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2016 Jeep Grand Cherokee
Stalling 39Check engine light 25Loss of power 14Fuel pump 10Won't shift 10Headlights 9Fire or smoke 8Jerking 8Overheating 8Sudden acceleration 7Won't start 7No deployment 6Power steering loss 6Seat belt 5
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