2017 Jeep Grand Cherokee: misfire or rough idle

Filed Jan 27, 2026 · Engine · 125,147 miles · PA

The contact owns a 2017 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the check engine warning illuminated. The contact stated that the vehicle had been running rough and idling roughly prior to the warning light becoming illuminated. The vehicle was taken to a local dealer to be diagnosed. The vehicle was diagnosed, and DTC: P0302 (Misfire in cylinder #2) was retrieved. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 125,147.

Filed Jul 16, 2025 · Acceleration, Fuel system · OK

Unknown or uncertain about needing a recall. Recently my car has been having trouble with acceleration in the sense that either it will lag or stall out and at times will give acceleration even without me trying to depress the gas harder. It sputters like it either cannot get gas or the fuel system is faulty, it keeps throwing codes and the check engine light dings and flashes. Cruise control sometimes will not come on, theres a burnt smell and rough idles, i have noticed a deep humming sound under my feet while driving, and sometimes when shifting from park to gear it jerks really hard, going down the road it acts like it takes too long to shift. It really is very scary when it does these things, its a daily occurrence. Sometimes it drives just fine then all of a sudden will malfunction. I've only had the car not quite 2 years and they said they repaired the recalls in 2018, after I had scheduled an appointment for July 2025.

Filed Oct 22, 2024 · Engine · 86,000 miles · IL

The contact owns a 2017 Jeep Grand Cherokee. The contact stated while driving 20 MPH, the check engine warning illuminated, and there was an abnormal sound coming from the driver’s side of the engine compartment. The vehicle was taken to an independent mechanic where it was diagnosed that cylinder #3 had misfired and a tune up was needed. The vehicle was repaired but the failure persisted. The vehicle was then taken to a different independent mechanic where it was diagnosed that the cam shaft and both head gaskets needed to be replaced. The vehicle was repaired but while in reverse(R), the vehicle stalled. The vehicle was restarted after three attempts. The vehicle was taken back to the independent mechanic where it was diagnosed that unstated software needed to be updated and reprogrammed. The vehicle was repaired but while stopped at an intersection the vehicle stalled. The vehicle was able to restart after waiting for a while. The vehicle was taken to the same independent mechanic again and was diagnosed and determined that the throttle body needed to be reprogrammed. The vehicle was repaired but the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 86,000.

Filed Oct 13, 2022 · Engine · WA

Purchased the car brand new back in 2017. In 2020, while driving normally, the car loss power and would not accelerate and started to have rough idles then auto stop/start came on followed by check engine. Brought it to the mechanic for diagnose and told me that there is a misfire on cylinder 2 and VVT sensor needs to be replaced. Brought it to the dealer and they fixed the issue. Two years after (present) at 100K miles, The car started to have the same issue. Yes it was high mileage but it was driven responsibly along with timely and proper maintenance from the dealer. The car started to have rough starts and white smoke on cold start. And on August 26, 2022 the car would not start. Got it towed to the dealer and told me that it has a bad starter. I was quoted for almost $2000. Once they got it to start after 3 weeks, they noticed the white smoke, the diagnosed it and told me that It has a blown head gasket. The car was driven responsibly and never overheated. They quoted me for $4600 just for the head gasket replacement. They still have my car and haven't decided what to do as it is very frustrating to think that in a short period of time, the car just gave up on us and will leave a huge hole in our pocket. It is our family car and now realized that Jeep (FCA/Stellantis) don't care about their customers because I have seen the same exact reports like mine. I don't get why it's not a recall yet. Please! Make this a recall because it's leaving families to have more financial hardship because of faulty engines that Jeep brand created.

Filed Aug 21, 2022 · Electrical, Engine · NY

There are a ton of posts on Reddit showing a bunch of 3.6l jeep owners all having the same issue with the VVT/VVL Solenoid. It seems to be all the same, the truck starts running very rough and like complete [XXX], CEL starts blinking, and then they check the codes coming up and they all seem to be getting codes p0456, p105d & p0302. The misfire is in cylinder 2 and the VVT Solenoid needs to be replaced at not even 70k miles. The bad solenoid caused the jeep to be undriveable. There are a ton of jeep owners who are all having this same EXACT issue with their jeep and yet this isn’t a recall?? Jeep obviously made a faulty truck. Please explain HOW THERE ISN’T A RECALL TO FIX THE VVT/VVL SOLENOID IN THESE JEEPS?? Some people are spending thousands to get it fixed at a dealer, which is seriously messed up bc it’s one little part and such an easy fix and just getting ripped off. JEEP NEEDS TO FIX THIS OBVIOUS VERY WELL KNOWN ENGINE ISSUE BC THATS ON THEM, THEY SHOULD HAVE TO PAY, NOT THE CONSUMERS who put all their faith into jeep to make a good running truck, only to get [XXX]!!! INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed Jun 23, 2022 · Electrical, Engine · TX

Driving down highway at 75 then the warning light for the start/stop function lights up, the jeep then starts cutting out and sounding really rough, speed immediately drops down to the 40"s this is on a major roadway luckily there were no cars behind me because they probably would had ran into me due to speed dropping that quickly thought I had a flat due to the sound pulled over as quickly as I could got out checked everything did not see anything wrong no fluid leaking, no smoke ect..get back in the vehicle go to proceed to get back up on the road and the vehicle is running really rough and jerky will not go above 40 engine light then comes on along with warning bells, pull back over on side of road turn vehicle off let it set for about 5 min. then start back up engine light is off but the start/stop light on dash is still on, then the engine light comes back on right outside of town slowly get into town take immediately to mechanic shop he checks the engine and tells me that cylinder 5 is misfiring changes coil pack and problem still shows up, I get the vehicle towed by to my home town 3 hrs away take to dealership now they tell me that my cylinder 5 has no compression and I need new engine the vehicle only has 81000 miles just purchased last July .

Filed Feb 28, 2019 · Engine · 64,000 miles · TX

Jeep is a 2017 with 64,000 barely out of warranty. Jeep kept stalling out at stops while driving and extremely rough idle. Took it to dealership, contacted chrysler customer service about the known issue and nothing they can do. Extremely dangerous and do not feel safe driving this product.