2017 Jeep Wrangler: check engine light

Filed Feb 6, 2026 · Acceleration, Engine · 100,000 miles · CT

The contact owns a 2017 Jeep Wrangler. The contact stated that while driving approximately 30-45 MPH, the vehicle lost power. On another occasion, while driving at 20 MPH, the vehicle lost motive power. While shifting into gear, the vehicle failed to respond as intended. The check engine warning light illuminated after the failure. The driver was able to pull over safely. The vehicle was running, and the heat was functioning. The vehicle was towed to a AAA Service Center, where the filter and oil were changed; however, the failure reoccurred. The vehicle was towed to AAA again, but no assistance was provided. The vehicle was taken to the local dealer, where it was diagnosed, and it was determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 100,000.

Filed Jul 25, 2025 · Engine · 47,000 miles · TX

The contact owns a 2017 Jeep Wrangler. The contact stated while attempting to start the vehicle or while driving at various speeds, the check engine warning light illuminated. The contact stated that the failure had occurred on several occasions. A dealer was contacted. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the valves and the engine needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure and informed the contact that the engine was not under warranty. The manufacturer offered no assistance. The contact was referred to the federal safety agency Hotline for assistance. The failure mileage was 47,000.

Filed Feb 22, 2024 · Engine · OH

While driving in city or highway the engine will shut off randomly, causing the steering almost impossible to turn. Had a few close calls because of this. There is no check engine light to come on.

Filed Feb 15, 2024 · Engine · 52,000 miles · NY

The contact owns a 2017 Jeep Wrangler. The contact stated while driving at an undisclosed speed, he heard an abnormal ticking sound emanating from the engine compartment, after which the vehicle lost significant motive power. The contact was able to pull to the shoulder of the roadway. After a visual inspection, the contact observed an oil leak underneath the engine compartment. The check engine warning light was illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the piston in cylinder #3. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 52,000.

Filed Jan 17, 2024 · Engine · TX

Vehicle started leaking a substantial amount of oil. I took it to a mechanic to have it diagnosed, they stated that the engine oil cooler filter housing is made of plastic and over time warps and leaks. Apparently this is a major issue and has been noted on MANY dodge/jeep vehicles. Prior to this happening, the check engine light came on, I had it diagnosed and it showed as a cylinder 6 misfire. This could have caused major issues in the future if it had not been caught when it was including damage to the bearings and the cylinders (probably what is causing the misfire now).

Filed Aug 16, 2023 · Brakes · PA

A check engine light came on and when diagnosed it was the Electronic Vacumn Pump which runs the braking system. I see there is a TSB from FCA (Fiat Chrysler Automobiles) about this problem.. Case Number: S1805000006 Release Date: 02/24/2020 Symptom/Vehicle Issue: ESC Light Illuminated. DTC C1252-92 VACUUM PUMP CONTROL CIRCUIT And Or P258B ELECTRONIC VACUUM PUMP PERFORMANCE Discussion: If ABS has C1252-92 Active or Stored do not replace the brake system module (ABS). PCM may also have set P258B-00. The faults are pointing to vacuum pump system having an issue maintaining vacuum levels. Please check the vacuum pump operation, fusing, wiring, and connector for proper functionality. Poor connections, spread pins, damaged connectors are possible causes. Perform the diagnostic for the DTC P258B regardless if it is set or not, since it is more compressive of a test than C1252-92. In addition when checking Vacuum lines, please ensure to check Vacuum hoses and check valves between the engine intake, booster and vacuum pump. Because the check valves only allow flow of air on one direction, each vacuum circuit must be checked separately to make sure there are no leaks, kinks or damages. Please refer to the correct vacuum diagram. For KL vehicles: inspect ALL under hood grounds for connection and contact issues. My Jeep is at the Ford Dealership I work at at this time. Didn't want to drive any farther than I had to at this time.

Filed May 30, 2023 · Engine · CA

Engine light came on stating cylinder #4 miss fire. After taking it in, the mechanic said that they can repair the head but it will most likely be an issue again in another 30k or it will be another cylinder. They said it is still causing the air to leak. This Jeep only has 51k miles and is in mint condition. After further research, Jeep had previously recalled this same issue on Jeeps a little older than 2017.

Filed Apr 1, 2023 · Engine · NV

Check engine light flashing then steady all of a sudden. Oil leaks

Filed Feb 9, 2022 · Engine · 79,000 miles · MO

The contact owns a 2017 Jeep Wrangler. The contact stated that the check engine warning lights was illuminated. The vehicle was taken to a local mechanic where it was diagnosed with needing cylinder number 2 replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 79,000. THE CONSUMER STATED THE VEHICLE WAS REPAIRED. THE OIL FILTER AND CYLINDER HEAD WERE BOTH REPLACED.

Filed Feb 5, 2022 · Fuel system · CA

Over the past few months, whenever I started up my 2017 Jeep Wrangler, I smelled a strong odor of gas fumes/exhaust. Then, two days ago my "Malfunction Warning Light" (check engine light) came in my dashboard and remained illuminated after an oil change and gas fill. I took my Jeep to the local Crystler/Jeep/Dodge/Ram dealership where they told me the code for the problem was a "Evap System Small Leak," but they could not take my car in for another week to look into the issue further. This concerned me, so I then took my Jeep to a Midas where they ran many tests to find that I had a "small fracture where the FPS inserts to the tank." Midas told me that although it is just the leak detection and purge valve that need a minor repair, this part cannot be purchased separately and I would need to pay to replace the whole gas tank for $2700. The technician told me he had seen this a few times before with Jeep Wranglers around the same year as mine before the 2018 models came out with a new tank, and that I couldn't have done anything to cause it because it is just a substandard part that was put in Jeeps of my model/year. I was told that if this issue is not corrected soon, it is unsafe to drive. A larger crack could grow and cause fuel to leak, which then becomes a fire safety hazard. The current fuel emissions/vapors escaping are harmful to breathe in, and to the environment. I was told my Jeep wouldn't pass smog inspection in it's current state. I have found a Crystler recall for faulty 2017 Jeep Wrangler fuel tanks, Recall no. 16V849000 (Crystler Recall no. S90) that applies exactly to my situation. However, although it is the exact problem I am experiencing, the dealership told me there are no open recalls for my specific 2017 Jeep Wrangler. I now have an open appointment to have the dealership take a closer look, but I don't believe I should need to pay for this large repair since it was a clear recall and common issue with 2017 Jeep Wranglers just like mine.

Filed Jan 6, 2022 · Engine · 84,000 miles · NJ

The contact owns a 2017 Jeep Wrangler. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic and initially diagnosed with cylinder #3 misfire. Additionally, there was an abnormal antifreeze odor detected. The engine code was reset. After getting the vehicle back from the mechanic, there was lots of white smoke coming from the exhaust pipe. The vehicle was taken back to the independent mechanic and diagnosed with a cracked cylinder head. The vehicle was not repaired and remained with the mechanic. The manufacturer was made aware of the failure and referred the contact to file a complaint with the federal safety agency. The failure mileage was approximately 84,000.

Filed Dec 1, 2020 · Brakes, Electrical · 53,000 miles · NY

My car was brought to the dealer for the same repair 3 times in the last three months. It was never corrected properly. Check engine light dashboard was on (while in motion and stationary on roads and highways)because there was a engine caliber misfire. Brakes were squeaking after being replaced. Brought my car back to the dealer on friday, november 27, demanding this repair be done properly. Name of the dealership is empire jeep dodge located on sunrise highway in west islip new york. My vehicle is still at the dealership - being worked on. Per the conversation with their associate today, my car should be ready by today 12/1 or tomorrow 12/2. The dealership is aware that when I brought my car in on friday, november 27 that I need to have the inspection done by november 30. Please let me know if you need further details.