2016 Jeep Wrangler Engine Problems

Head gasket failure, causing motor to overheat.

Oil cooler/filter housing leaking oil and coolant.

Oil Cooler leaking after multiple replacements causing engine stall while driving and lots of burning and smoke potentially leading to fire.

The contact owns a 2016 Jeep Wrangler. The contact stated that while the vehicle was parked in the garage, the contact became aware of an oil leak. The contact stated that the leak was small. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed and determined that the engine oil cooler needed to be replaced. Additionally, the contact had previously replaced the thermostat at an independent mechanic due to the parts being on backorder. The contact stated that the failure might be due to the cold temperatures. The vehicle was repaired, but the failure recurred. The manufacturer was not contacted. The failure mileage was approximately 43,000.

I recently had my oil changed about 3 weeks ago from today. Three (3) days ago, while I was driving, my engine lamp came on and my engine began to run hot. I didn't understand why given that I had just got the oil changed. I pulled to the side of the road and turned the car off to allow it to cool down. It would not crank and I had to have it towed to the auto shop to be serviced which is where they told me that the engine needed replacement.

My vehicle would not start, leaving me in the freezing cold after a 10 hour shift at work. After having the vehicle towed to a service center & a week of inspection, I was notified that the engine had siezed up & needed replaced. The engine oil, front & rear differential, & transfer case fluids had just been changed a week prior. There was no engine warning light prior to this event.

The contact owns a 2016 Jeep Wrangler. The contact stated while driving at an undisclosed speed, there was a significant amount of smoke coming from underneath the hood and entering the cabin of the vehicle through the A/C vents. The contact stated that the failure had occurred while her one-year-old child was inside the vehicle. The check engine warning light was illuminated. The vehicle was taken to McCoy's Auto Repair, where it was diagnosed and determined that the oil filter housing was fractured and needed to be replaced. The vehicle was not repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 150,000.

The contact owns a 2016 Jeep Wrangler. The contact stated that there was an unknown liquid leaking underneath the front of the engine compartment. There was no warning lights illuminated. The vehicle was taken to a certified mechanic who diagnosed that the oil filter housing assembly had fractured and needed to be replaced. The oil filter housing had been replaced. The manufacturer was made aware of the failure and confirmed that there were no recalls on the VIN for the failure. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 73,000.

ENGINE OIL COOLER WENT OUT AND MY MECHANIC WANTS $1100 TO REPAIR!! SAYS THEY ALL GO BAD EVENTUALLY START LEAKING OIL VERY BADLY!!!!!

Started getting a loud ticking sound on driver side of engine . Took it to an auto mechanic he said it my left side head rocker arms making the noise. He also said Chrysler 3.6l Pentastar engine are known for this problem.

Internal manual transmission problem. Cannot put jeep in 3rd gear. Burning smell

75,000 MILES, ENGINE TICKING ON COLD START, ENGINE LIGHT FOR CYL 2 MISFIRE, ENGINE CHUGS AND HAS LOW ACCELERATION. DEALER REPLACED ROCKER ARM UNDER OWNER'S EXTENDED WARRANTY. DID NOT FIX PROBLEM AND NOW ARE DISASSEMBLING ENGINE. READ MANY OTHER CUSTOMERS WITH SAME PROBLEM, CLASS ACTION LAW SUIT IN PROGRESS. MANUFACTURER KNOWS ABOUT PROBLEM BUT WILL NOT TELL OWNERS.

As I drive, the car loses the ability to accelerate. It then passively stalls and the automatic steering locks up. All electrical inside the car still stays on. I put the car in park and it restarts on the first key turn. It has happened up to 3 times in a trip, but it is inconsistent when it happens (not necessarily every trip and not at specific speeds (it happeneded going 70 on the highway as well as going 25 in a neighborhood)). When I brought it to the dealership. I was told unless they could make it happen, they couldn't fix it. They also said even if they could make it happen, they couldn't be sure what it was. The onboard computer that sends error codes indicated different things that have been replaced (computer parts, sensors) and nothing has worked.

Oil cooler housing cracked and leaking oil over entire engine which could cause a fire. Dealership has confirmed the part is damaged. No warning lamps or messages were triggered. Others have experienced the same problem with multiple replacements. Vehicle has been at the dealership now since 2/1/2023 waiting for Chrysler / Mopar Warranty to give the authorization to repair.

The contact owns a 2016 Jeep Wrangler. The contact stated while starting the vehicle, there was an abnormal sound coming from the vehicle. The contact stated no warning light was illuminated. The contact took the vehicle to the local dealer but there was no failure found however, the dealer performed an oil change. The vehicle continued to experience the failure with the abnormal sound being more pronounced. The contact took the vehicle to an independent mechanic to be diagnosed. The contact was informed that the cylinders needed to be adjusted. The vehicle was not repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 93,000.

Oil Housing Unit crack. Just bought vehicle used. Weather dropped to 28 degrees and oil housing unit cracked. All oil poured out of vehicle and would not hold any oil when more was added. Took vehicle to Jeep dealer and they confirmed that the PLASTIC piece that was the original part cracked and that this is a very common problem for 2014-2017 Jeeps due to the part being plastic. Part is not covered under any warranty and will cost $1200 to repair. I'm told that the replacement parts have been updated and are no longer made of plastic due to the high instance of problems. All research shows that this was to be a recall but that it has not been made official. This is a huge safety concern as the oil completely drained from the vehicle upon crack. Had I not been in my own driveway and driving down the highway, this would have caused major issues, engine failure and very possibly an accident. We were planned to be on a 6hr road trip moments before this occurred in the driveway. This part needs to be recalled and replaced by the manufacturer since it is a common and known problem with many Jeeps manufactured during that time frame.

The contact owns a 2016 Jeep Wrangler. The contact stated while driving at an undisclosed speed, she heard a tapping sound under the hood of the vehicle. No warning light was illuminated. The dealer was notified of the failure and indicated that the rocker arm and the camshaft needed to be replaced. The vehicle was not diagnosed. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was advised to call the NHTSA Hotline. The failure mileage was 70,218.

The camshaft and lifters failed with no check engine light. Upon inspection the left bank cams and lifters were in need of replacement and a pinhole was found in the radiator.

P0302 code popped up all four rocker arms on left cylinder need to be replaced. Jeep had normal oil change 50k miles

The contact owns a 2016 Jeep Wrangler. The contact stated that upon the approach of a stop sign with his foot on the brake pedal, the engine had begun to rev without warning. With the brake pedal depressed to the floorboard, the vehicle continued to lurch forward as the contact clipped the vehicle in front of him. As the engine continued to rev, the contact immediately shut off the ignition. A police report was not filed and no injuries were reported. Both the contact and the other driver were able to drive away from the scene. The dealer was notified and an appointment was made for a diagnostic. The contact called the manufacturer and was informed that he would receive a callback, the contact had yet to hear back from the manufacturer. The vehicle had yet to be repaired. The failure mileage was approximately 71,000.