2017 Jeep Cherokee: misfire or rough idle

Filed Aug 12, 2025 · Engine, Transmission · 128,941 miles · MO

The contact owns a 2017 Jeep Cherokee. The contact stated that while driving at 75 MPH, the accelerator pedal was depressed; however the vehicle failed to accelerate as intended. The check engine and an unknown warning light illuminated. The contact stated that the vehicle then decelerated to 64 MPH, and the transmission sputtered. The vehicle was taken to O’Reilly’s Auto Parts and was diagnosed and DTC: P0303 (Misfire in cylinder #3); was retrieved. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 128,941.

Filed Feb 15, 2023 · Transmission · CA

The service shifter light keeps coming on. It will also misfire when the start-stop system is used. Sometimes when it misfires it will cause the valves to be out of sink and then the engine runs very rough until it is fixed.

Filed Aug 25, 2020 · Electrical, Engine · 50,000 miles · PA

While driving the service shifter lighter appears on dash and shifter position lights all light randomly and has been becoming more frequent. They turn off once I stop, turn the car off, and restart the car. I have read models previously have been recalled for this issue but not 2017 which appears to have the same issues. Also I've had to change my spark plugs at about every 50,000 miles. I replaced them once already and once again I am having the same issue the check engine light is on and at times the car is shaking from the misfiring. The check engine light remains on at a times. The check engine light flashes and the car is shaking the power and acceleration are significantly reduced when the spark plugs are actively misfiring. This only occurs with accelerating and pressing on gas pedal and happens constantly while driving. I've never had to replace spark plugs this often they usually last atleast 100,000 miles. There is a problem when they barely last for half that and require replacement atleast 2 times before they should go bad. These seem to be a common issue but when you ask the dealer they act clueless and something needs to be done. These are costly problems that should not be occurring or occurring this frequently. Please investigate.

Filed Aug 25, 2020 · Electrical, Engine · PA

While driving the service shifter lighter appears on dash and shifter position lights all light randomly and has been becoming more frequent. They turn off once I stop, turn the car off, and restart the car. I have read models previously have been recalled for this issue but not 2017 which appears to have the same issues. Also I've had to change my spark plugs at about every 50,000 miles. I replaced them once already and once again I am having the same issue the check engine light is on and at times the car is shaking from the misfiring. The check engine light remains on at a times. The check engine light flashes and the car is shaking the power and acceleration are significantly reduced when the spark plugs are actively misfiring. This only occurs with accelerating and pressing on gas pedal and happens constantly while driving. I've never had to replace spark plugs this often they usually last atleast 100,000 miles. There is a problem when they barely last for half that and require replacement atleast 2 times before they should go bad. These seem to be a common issue but when you ask the dealer they act clueless and something needs to be done. These are costly problems that should not be occurring or occurring this frequently. Please investigate.

Filed Nov 27, 2019 · Electrical · 54,000 miles · MA

The service shifter warning appeared and all lights on the prndm turned red. Vehicle eventually started to stall out and lead to a misfire from cylinder 2

Filed Nov 26, 2019 · Engine, Transmission · 55,989 miles · CA

Service shifter light cam on feb 2019 and was replaced. 6 months later the light came on again and was replaced for a 2nd time. October 2019 my car was sputtering at an idle and not shifting correctly and an engine coil was replaced. Nov 2019 when going from reverse to drive there would be a 15-20 second lag before it would jump into gear and lung forward. I also start experiencing delays when attempting to accelerate it would lag for about 10 second before jerking into gear and lung forward at a higher speed. Took it back to the dealership and code p0304 misfire cylinder 4. Dealership replaced (under power train warranty) boot kit - ignition coil, lubricant - dielectric, transmission mount, replaced valve body and trans range sensor. Car was purchased in december of 2017 with 12 miles on it, current mileage 55,989 with regular maintenance done on vehicle.

Filed Oct 2, 2019 · Electrical · 36,000 miles · TX

Service shifter warning keeps coming on even after being taken to dealership. All lights on the gear shift turn red and stay on. While this is happening there appears to be a misfire in one of the gears.

Filed May 13, 2019 · Driver assistance, Electrical · 39,000 miles · OK

At 38,000 miles on our new jeep, the spark plugs are grounding out for some unexplained reason and burning a hole in the bottom of the coil packs boot. Causing the plug and coil packs to burn up. I'm being told it's a manufactures part defect that jeep hasn't recognized yet. It's happened 3 different times and jeep won't do anything about it. This problem has almost cost my wife and kids their life, due to getting on the highway and the jeep starts to misfire!!!!

Filed Apr 5, 2019 · Transmission · 38,000 miles · MA

While in motion on city streets and highways, "service shifter" message appears on dash as well as all shifter lights illuminate. Car seems to "misfire" and jerk forward. Dealer has 'repaired' 4 times and issue returns. This issue has occurred multiple times in the 1 year I have own this car (purchased new). The first incident was april of 2018 and most recently 3/20/19