2019 Jeep Grand Cherokee: engine failure

Filed Sep 15, 2026 · Engine · MO

Service engine light came on and code read misfire. Tech said that ignition coil one needs replaced and it needed a tune up. They replaced all ignition coils, spark plugs and intake manifold gasket with tune up. Tech said that coolant looked low and checked the reservoir. He said there's a lot of chunks and dried out looking coolant in the reservoir. Recommended a coolant flush at the dealership. Tune up cost almost 1000 dollars. A few days later my teenage son was driving on the highway at 70 mph and out of nowhere a engine overheating warning flashed and the temperature went all the way up and then down and back and forth. My son had to try and get pulled off of the busy highway while overheating. Car was blowing out white smoke. He was stranded over an hour away from home. Had to have car towed. Was told by the mechanic the next day that the plastic oil cooler had cracked and the oil got into the coolant. Causing the engine to fail at only 104,807 miles! Cost for a new motor was 10,400! Shop said he just had the same thing happen on another vehicle with the same engine the week before mine! I had to pay out of pocket for the new engine. Obviously there's a safety defect in the plastic oil cooler causing several people to experience the same thing happening! There was no warning before the oil got into the coolant. Why is the same thing happening to so many people but nothing is being done about it? Having to replace the engine at 104,807 miles is insane. How many times does it have to happen before they recall the problem?

Filed Sep 3, 2026 · Engine · MA

We found a huge spillage in our driveway and it had a color of yellowish Brown. Took it to the dealership tech found oil and coolant were mixed together and coming out of the overflow tank. Because the oil in the coolant mixed together, it went through all the components in the engine and it is a total loss. The car does not work and it needs a new engine. Had another independent car shop. Look at the car in they agreed. We had no signs of warning of anything being wrong with the car. It ran fine. The temperature gauge remained normal and never overheated. I am reading about a class action lawsuit about this situation that happened to multiple Jeep Grand Cherokees. Since the dealership told us it's a total loss. If you wanted to fix it, it will cost us over $10,000. The mechanic told us that this is not drivable even if you try to drive the engine will 09lock up and you can get into a major accident or even cause one.

Filed Mar 21, 2026 · Engine · TX

Vehicle: 2019 Jeep Grand Cherokee Engine: 3.6L V6 (Pentastar) While driving on the highway, the vehicle experienced a sudden engine overheating condition, followed by a catastrophic failure of the coolant recovery tank. This failure created a serious safety hazard and appears to be the result of a known and well-documented head gasket defect in the 3.6L engine used in Jeep Grand Cherokees. While driving at highway speed, the vehicle was operating normally until I made a left turn. Immediately after the turn, the engine temperature began to rise rapidly, indicating an overheating condition. I turned around and began driving back toward my residence to avoid further damage or a roadside breakdown. Before reaching home, the coolant recovery tank violently exploded, releasing coolant throughout the engine bay. As well as strong burning coolant chemical smells throThis occurred while the vehicle was still in operation and could have resulted in loss of visibility, fire risk, or complete engine failure while driving. After inspection by a qualified professional, the failure was confirmed to be caused by a failed head gasket, which allowed combustion gases to pressurize the cooling system until the coolant recovery tank ruptured. This failure occurred without warning and while the vehicle was being driven on public roadways. A sudden coolant system explosion and rapid overheating can result in: Loss of engine power while driving Fire risk from hot coolant contacting engine components Loss of vehicle control Stranding occupants in unsafe conditions This represents a significant safety defect. Jeep Grand Cherokees equipped with the 3.6L engine are widely known to experience head gasket failures, typically occurring between 50,000 and 75,000 miles. Despite this known issue, Stellantis/Chrysler has not issued a recall, technical service campaign, or extended warranty related to this defect.

Filed Feb 24, 2026 · Engine · MI

2019 jeep grand Cherokee 3.6L. Severe misfiring on expressway causing vehicle to shake uncontrollably and stall. “Pentastar tick” Ticking sound coming from engine. Took to local repair shop and right cam shaft is worn down causing misfiring and engine damage. Cost is $4,000 for the camshaft replacement and will likely need a new engine. Vehicle has less than 109,000 miles on it. Known issue on this vehicle, I called multiple shops and they all said that the can shaft is probably bad because they see the issue all the time.

Filed Dec 2, 2025 · Engine · IL

My 2019 Jeep Grand Cherokee (3.6L engine) suffered a sudden and catastrophic engine failure immediately after the dealership misdiagnosed a coolant leak from the oil cooler assembly. The oil cooler on this engine has a well-documented history of cracks, coolant contamination, and sudden oil loss across multiple Jeep model years. On October 25, I reported a coolant leak to the dealership, including a photo of bright pink coolant. The service advisor incorrectly told me it was “oil mixed with coolant,” did not document urgency, and did not involve a technician. I received no warning that this leak was dangerous or likely to cause engine failure. Within about a week, the oil cooler assembly failed, dumping the engine oil, causing smoke, knocking, and complete engine destruction. There was no prior warning from the dealership despite me reporting this issue directly. The dealership later created service notes that inaccurately stated they “informed me of a leak,” which is untrue. I informed them. Their failure to diagnose and communicate the seriousness of this defect directly resulted in my engine being destroyed. This failure mirrors hundreds of other owner reports regarding oil cooler cracks on the 3.6L Pentastar. This appears to be a pattern of premature oil cooler failure with severe safety consequences and no recall.

Filed Jul 17, 2025 · Engine · MI

I am writing to express my serious concern and request immediate goodwill assistance regarding my 2019 Jeep Grand Cherokee High Altitude . This vehicle has suffered a head gasket failure at just over 100,000 miles and has been diagnosed by the dealership as a cost for myself to fix head gasket and recommended a full engine replacement. I have been a loyal Jeep customer since I was 16 years old. I previously owned a 2008 and a 2010 Grand Cherokee and have always supported the brand. In May 2022, after saving up my hard-earned money, I purchased this 2019 Grand Cherokee High Altitude for over $55,000. The monthly payments are significant, but I chose this vehicle because I believed in the Jeep name and expected quality, performance, and long-term reliability. Unfortunately, this vehicle has been anything but that. In just over two years, it has become a complete money pit. I’ve already had to replace the water pump at 50,000 miles, the radiator at 80,000 miles, and now—at 102,000 miles—the head gasket has blown. These are major repairs that should not be happening on a vehicle that is so well maintained and primarily driven on the highway. I treat this vehicle like my own child, staying on top of all maintenance—fluids, filters, routine checks, and oil changes every 5,000 miles. I’ve also had to pay out of pocket for three separate rental vehicles in the last 18 months due to these recurring issues. This vehicle has not only been unreliable but has also disrupted my ability to work. I drive for a living, commuting between multiple job sites, and I chose this vehicle for its sharp look and supposed quality. Instead, it has caused me immense stress and financial strain. Adding to my frustration is the fact that I had a 7-year/100,000-mile warranty and was not notified that it was about to expire. Had I been properly informed, I would have explored my options before this latest major failure. It's clear that the 3.6L engine has a pattern of issu

Filed Feb 10, 2025 · Engine · 160,000 miles · IL

The contact owns a 2019 Jeep Grand Cherokee. The contact stated while driving at an undisclosed speed, the vehicle stalled and then lost motive power with the check engine warning light illuminated. The vehicle was towed to the dealer where it was diagnosed that the engine failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The manufacturer was made aware of the failure. The failure mileage was approximately 160,000.

Filed Jan 27, 2025 · Brakes, Steering · 70,000 miles · VA

The contact owns a 2019 Jeep Grand Cherokee. The contact received notification of the federal safety agency Campaign Numbers: 22V426000 (SERVICE BRAKES, HYDRAULIC) and 24V838000 (SERVICE BRAKES, HYDRAULIC); however, the parts to do the recall repair were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The contact stated while driving downhill at approximately 20 MPH, the steering wheel seized. The contact was unable to turn the steering wheel to the left or the right. The vehicle later returned to normal functionality. There was no warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed; however, no cause for the failure was provided. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 70,000. Parts distribution disconnect on the federal safety agency Campaign Number: 22V426000 (SERVICE BRAKES, HYDRAULIC). VIN tool confirms parts not available for the federal safety agency Campaign Number: (SERVICE BRAKES, HYDRAULIC).

Filed Aug 23, 2024 · Steering · 74,000 miles · NC

The contact owns a 2019 Jeep Grand Cherokee. The contact stated while driving approximately 40 MPH, the steering wheel seized. The contact was unable to turn the steering wheel to the left or the right. The contact was then able to get the steering wheel to turn using more than normal force. The contact pulled over to the side of the road. The contact turned off and restarted the vehicle and was able to reset the power steering; however, the steering wheel was not functioning normally. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the steering rack gear needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The contact researched online and related the failure to the federal safety agency Campaign Number: 19V637000 (Steering). The failure mileage was approximately 74,000.